CN115102559A

CN115102559A - Radio frequency PA Mid device, radio frequency system and communication equipment

Info

Publication number: CN115102559A
Application number: CN202210652380.1A
Authority: CN
Inventors: 王国龙
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-09-23
Anticipated expiration: 2042-06-07
Also published as: WO2023236530A1; CN115102559B

Abstract

The embodiment of the application relates to a radio frequency PA Mid device, a radio frequency system and a communication device, wherein the radio frequency PA Mid device is configured with a first input port and a second input port for connecting a radio frequency transceiver, and a first medium-high frequency antenna port for connecting an antenna, and the radio frequency PA Mid device comprises: the first transmitting module is connected with the first input port and is used for supporting transmitting processing of the medium-high frequency signals of the first standard from the first input port; the second transmitting module is connected with the second input port and used for supporting the transmitting processing of the high-frequency signals of a second system from the second input port, and the second system is different from the first system; and part of first ends of the first switch module are respectively connected with the first transmitting module and the second transmitting module, one second end of the first switch module is connected with the first medium-high frequency antenna port, and the first switch module is used for selectively conducting a signal transmission path between any one first end and the second end connected with the first medium-high frequency antenna port.

Description

Radio frequency PA Mid device, radio frequency system and communication equipment

Technical Field

The embodiment of the application relates to the technical field of radio frequency, in particular to a radio frequency PA Mid device, a radio frequency system and communication equipment.

Background

With the development and progress of the technology, mobile communication technology is gradually beginning to be applied to communication devices such as mobile phones and the like. In order to meet the increasing demands of various network systems and simultaneously solve the problem of tight layout of the PCB, the high integration and miniaturization of the device become a significant trend. Therefore, it is desirable to provide a radio frequency device with higher integration.

Disclosure of Invention

In view of the above, there is a need to provide a radio frequency PA Mid device, a radio frequency system and a communication apparatus, which can improve the integration level.

A radio frequency PA Mid device configured with a first input port and a second input port for connection to a radio frequency transceiver, and a first medium-high frequency antenna port for connection to an antenna, the radio frequency PA Mid device comprising:

the first transmitting module is connected with the first input port and used for supporting transmitting processing of the medium-high frequency signals of the first standard from the first input port;

the second transmitting module is connected with the second input port and used for supporting the transmitting processing of a high-frequency signal of a second standard from the second input port, wherein the second standard is different from the first standard;

the first switch module comprises a plurality of first ends and a plurality of second ends, part of the first ends of the first switch module are respectively connected with the first transmitting module and the second transmitting module, one second end of the first switch module is connected with the first medium-high frequency antenna port, and the first switch module is used for selectively conducting a signal transmission path between any one first end and the second end connected with the first medium-high frequency antenna port.

A radio frequency system, comprising: a radio frequency transceiver and a radio frequency PA Mid device as described above; wherein,

the second input port, the first input port and the first output port of the radio frequency PA Mid device are respectively connected with the radio frequency transceiver, and the first medium-high frequency antenna port is connected with the first antenna.

A communication device comprising a radio frequency system as described above.

The radio frequency PA Mid device comprises two medium-high frequency transmitting modules so as to support the transmission processing of medium-high frequency signals of different standards. Because the signals processed by the first transmitting module and the second transmitting module are medium-high frequency signals, the integrated setting has better compatibility. Moreover, because the medium-high frequency signals of different systems do not need to be transmitted simultaneously, the medium-high frequency signals of different systems can be transmitted in a time-sharing manner through the same first medium-high frequency antenna port by arranging the first switch module, so that the number of the antenna ports which need to be arranged is reduced, and the integration level of the radio frequency PA Mid device is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is one of schematic structural diagrams of an rf PA Mid device according to an embodiment;

fig. 2 is a second schematic structural diagram of an rf PA Mid device according to an embodiment;

fig. 3 is a third schematic structural diagram of an rf PA Mid device according to an embodiment;

fig. 4 is a fourth schematic structural diagram of an rf PA Mid device according to an embodiment;

fig. 5 is a fifth schematic structural diagram of an rf PA Mid device according to an embodiment;

fig. 6 is a sixth schematic structural view of an rf PA Mid device according to an embodiment;

fig. 7 is a seventh schematic structural diagram of an rf PA Mid device according to an embodiment;

fig. 8 is an eighth schematic structural diagram of an rf PA Mid device according to an embodiment;

FIG. 9 is a schematic diagram of an embodiment of a RF system;

fig. 10 is a second schematic structural diagram of an rf system according to an embodiment;

fig. 11 is a ninth schematic structural diagram of an rf PA Mid device according to an embodiment;

fig. 12 is a tenth schematic diagram of a structure of an rf PA Mid device according to an embodiment;

fig. 13 is a third schematic structural diagram of a radio frequency system according to an embodiment;

fig. 14 is an eleventh schematic diagram illustrating a structure of an rf PA Mid device according to an embodiment;

FIG. 15 is a fourth exemplary embodiment of a RF system;

fig. 16 is a twelfth schematic structural diagram of an rf PA Mid device according to an embodiment;

FIG. 17 is a fifth exemplary schematic structural diagram of an RF system;

fig. 18 is a thirteen schematic structural diagram of an rf PA Mid device according to an embodiment;

FIG. 19 is a sixth schematic block diagram of an exemplary RF system;

fig. 20 is a seventh schematic structural diagram of a radio frequency system according to an embodiment;

fig. 21 is an eighth schematic structural diagram of a radio frequency system according to an embodiment.

Element number description:

radio frequency PA Mid device: 10; a radio frequency transceiver: 20; radio frequency LFEM device: 30, of a nitrogen-containing gas; the first transmitting module: 110; a second transmitting module: 120 of a solvent; a third transmitting module: 130, 130; a fourth transmitting module: 140 of a solvent; a first switch module: 210; a second switch module: 220, 220; a third switch module: 230; a fourth switch module: 240; a fifth switch module: 250 of (a); a sixth switch module: 260 of a nitrogen atom; a first receiving module: 310; a second receiving module: 320; a third receiving module: 330; a fourth receiving module: 340; third medium-high frequency filter: 431; fourth medium-high frequency filter: 441; a third low-frequency filter: 531; a fourth low frequency filter: 541; a first combiner: 610; a second combiner: 620; the third combiner: 630; a fourth combiner: 640; a first coupling module: 710; a second coupling module: 720.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first input port may be referred to as a second input port, and similarly, a second input port may be referred to as a first input port, without departing from the scope of the present application. The first input port and the second input port are both input ports, but they are not the same input port.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the description of the present application, "a number" means at least one, such as one, two, etc., unless specifically limited otherwise.

The radio frequency PA Mid device according to the embodiment of the present application may be used to construct a radio frequency system, and the radio frequency system may be applied to a communication device with a wireless communication function, where the communication device may be a handheld device, a vehicle-mounted device, a wearable device, a computing device, or other processing devices connected to a wireless modem, and various forms of User Equipment (UE) (e.g., a Mobile phone), a Mobile Station (MS), and the like. For convenience of description, the above-mentioned devices are collectively referred to as a communication device.

Fig. 1 is a schematic structural diagram of an rf PA Mid device 10 according to an embodiment, and referring to fig. 1, in one embodiment, the rf PA Mid device 10 is configured with a first input port and a second input port for connecting to a radio frequency transceiver, and a first medium-high frequency antenna port ANT3 for connecting to an antenna. The first input port and the second input port are respectively used for transmitting signals of different systems, so that the radio frequency PA Mid device 10 can transmit signals of a first system and a second system, and the second system is different from the first system. The radio frequency signals can comprise low, medium and high frequency signals of 2G system, 4G system and 5G system. The antenna may be formed using any suitable type of antenna, for example, an antenna having a resonating element formed from the following antenna structure: at least one of an array antenna structure, a loop antenna structure, a patch antenna structure, a slot antenna structure, a helical antenna structure, a strip antenna, a monopole antenna, and a dipole antenna. Wherein different types of antennas may be used for different frequency bands and frequency band combinations.

In the embodiments of the present application, a first input port is used for transmitting a medium-high frequency signal of a 4G standard and a medium-high frequency signal of a 5G standard, and a second input port is used for transmitting a high-frequency signal of a 2G standard. Accordingly, the first input port may be referred to as 4G RFIN and the second input port may be referred to as 2G HB IN. It should be noted that, although some ports in fig. 1 are named in 4G format, the ports may be used to transmit signals in 5G format. Further, in order to improve the processing performance of the radio frequency PA Mid device 10 on the medium-high frequency signals of the 4G standard signals, the radio frequency PA Mid device 10 according to the embodiment of the present application respectively processes the medium-frequency signals and the high-frequency signals of the 4G standard. The medium-high frequency signals may include medium-frequency signals and high-frequency signals among 4G LTE signals, 5G NR signals. The intermediate frequency signal may include at least one radio frequency signal in an intermediate frequency band, for example, radio frequency signals in bands of B1, B3, B66, B25, B34, and B39. The high frequency signal may include at least one radio frequency signal in a high frequency band, for example, a radio frequency signal in a band including B7, B40, B41, and the like. Accordingly, the radio frequency PA Mid device 10 may be configured with two first input ports, respectively referred to as 4G MB RFIN and 4G HB RFIN, to transmit signals of different frequency band ranges, respectively.

The radio frequency PA Mid device 10 includes a first transmitting module 110, a second transmitting module 120, and a first switching module 210. The first transmitting module 110 is connected to the first input ports 4G MB RFIN and 4G HB RFIN, and is configured to support transmission processing of the medium-high frequency signals of the first standard from the first input ports 4GMB RFIN and 4G HB RFIN. The second transmitting module 120 is connected to the second input port 2G HB IN, and is configured to support transmission processing of a high-frequency signal of the second system from the second input port 2G HB IN. Each transmitting module includes at least one Power Amplifier (PA), and may further include at least one of a filter, a combiner, a duplexer, and a switch, so as to support a more complex transmitting and processing function. The first switch module 210 includes a plurality of first terminals and a plurality of second terminals, a part of the first terminals of the first switch module 210 are respectively connected to the first and second transmitting

modules

110 and 120, a second terminal of the first switch module 210 is connected to the first medium-high frequency antenna port ANT3, and the first switch module 210 is configured to selectively open a signal transmission path between any one of the first terminals and the second terminal connected to the first medium-high frequency antenna port ANT 3.

Further, the first transmitting module 110 may output the transmitted signals of different frequency bands to the first switch module 210 through different ports, so as to transmit the medium-high frequency signals of different frequency bands. Therefore, a plurality of signal transmission paths may be formed between the first transmitting module 110 and the first switching module 210, and each signal transmission path is used for transmitting signals of different frequency bands, so as to extend the frequency band range that the rf PA Mid device 10 can process. In addition, each signal transmission path can be respectively provided with a filter corresponding to a frequency band, so that the signals transmitted by the signal transmission paths are filtered, and the signal transmission quality is improved. For example, in the embodiment shown in fig. 1, two signal transmission paths are provided between the first transmitting module 110 and the first switch module 210, and each signal transmission path may be provided with a corresponding second medium-high frequency filter, and only the signal in the frequency band required to be transmitted in the signal transmission path that is located is allowed to pass through, and other signals outside the frequency band required to be transmitted are isolated, so as to filter the signals in different frequency bands respectively.

In this embodiment, the radio frequency PAMid device 10 includes two middle and high frequency transmitting modules to support the transmission processing of the middle and high frequency signals of different standards. Since the signals processed by the first transmitting module 110 and the second transmitting module 120 are both medium-high frequency signals, the integrated configuration has better compatibility. Moreover, because the medium-high frequency signals of different standards do not need to be transmitted simultaneously, the first switch module 210 is arranged, so that the medium-high frequency signals of different standards can be transmitted in a time-sharing manner through the same first medium-high frequency antenna port ANT3, the number of antenna ports required to be arranged is reduced, and the integration level of the radio frequency PA Mid device 10 is improved.

Fig. 2 is a second schematic structural diagram of the rf PA Mid device 10 according to an embodiment, and referring to fig. 2, in one embodiment, the rf PA Mid device 10 is further configured with a first output port LNA OUT for connecting to a radio frequency transceiver, and the first output port LNA OUT is used for transmitting the received processed medium-high frequency signal to the radio frequency transceiver. The radio frequency PA Mid device 10 further comprises a first receiving module 310. The first receiving module 310 is connected to the first output port LNA OUT, and is configured to support receiving processing of the medium-high frequency signal of the first standard from the first medium-high frequency antenna port ANT3, and transmit the processed signal to the first output port LNA OUT. A part of the first end of the first switch module 210 is connected to the first receiving module 310, and the first switch module 210 is further configured to selectively transmit the medium-high frequency signal of the first standard from the first medium-high frequency antenna port ANT3 to the first receiving module 310. That is, when transmitting a signal, the first switch module 210 may selectively turn on the first transmitting module 110 or the second transmitting module 120 to the first medium-high frequency antenna port ANT3, so as to transmit a medium-high frequency signal; in signal reception, the first switch module 210 may selectively conduct the first middle-high frequency antenna port ANT3 to the first receiving module 310, so as to implement reception of middle-high frequency signals.

In this embodiment, by integrating the first receiving module 310, the medium-high frequency signal of the first standard can be received, so that the medium-high frequency signal of the first standard is received without an external receiving module, thereby reducing the number of external wires and improving the integration level of the radio frequency system. It is understood that, similar to the first transmitting module 110, the first receiving module 310 may also be provided with a plurality of ports for connecting to the first switching module 210, so that a plurality of signal transmission paths are formed between the first receiving module 310 and the first switching module 210, so as to transmit signals of different frequency bands via different signal transmission paths, respectively. Furthermore, a filter may be disposed on a signal transmission path between the first receiving module 310 and the first switching module 210 to improve a signal-to-noise ratio of the transmitted medium-high frequency signal.

Fig. 3 is a third schematic structural diagram of the radio frequency PA Mid device 10 according to an embodiment, and referring to fig. 3, in one embodiment, the radio frequency PA Mid device 10 is further configured with a third input port 4G LB RFIN and a fourth input port 2G LB RFIN for connecting the radio frequency transceiver, and a first low frequency antenna port ANT1 for connecting an antenna. The low-frequency signals of the first standard may include radio frequency signals of any low-frequency band of 4G LTE signals and 5G NR signals, and may exemplarily include radio frequency signals of multiple frequency bands of B8, B12, B20, B26, B28A, and the like.

The radio frequency PA Mid device 10 further includes a third transmitting module 130, a fourth transmitting module 140, and a second switching module 220. The third transmitting module 130 is connected to the third input port 4G LB RFIN, and is configured to support a transmission process of the low-frequency signals of the first standard from the third input port 4G LB RFIN. The fourth transmitting module 140 is connected to the fourth input port 2G LB RFIN, and is configured to support a transmission process of the low-frequency signals of the second system from the fourth input port 2G LB RFIN. The second switch module 220 includes a plurality of first terminals and a plurality of second terminals, a part of the first terminals of the second switch module 220 are respectively connected to the fourth and

third transmitting modules

140 and 130 in a one-to-one correspondence, one second terminal of the second switch module 220 is connected to the first low frequency antenna port ANT1, and the second switch module 220 is configured to selectively open a signal transmission path between any one of the first terminals and the second terminal connected to the first low frequency antenna port ANT 1. That is, the second switch module 220 may select to connect the third transmitting module 130 to the first low-frequency antenna port ANT1 to implement transmission of the low-frequency signal of the first standard, or may select to connect the fourth transmitting module 140 to the first low-frequency antenna port ANT1 to implement transmission of the low-frequency signal of the second standard.

In this embodiment, the radio frequency PA Mid device 10 further includes two low-frequency transmitting modules to support transmission processing of low-frequency signals of different systems, so that the radio frequency PA Mid device 10 can respectively transmit and receive low-frequency and medium-high-frequency signals. Moreover, by setting the second switch module 220, low-frequency signals of different standards can be transmitted in a time-sharing manner through the same first low-frequency antenna port ANT1, so that the number of antenna ports to be set is reduced, and the integration level of the radio frequency PA Mid device 10 is improved.

Fig. 4 is a fourth schematic structural diagram of the rf PA Mid device 10 according to an embodiment, and referring to fig. 4, in one embodiment, the rf PA Mid device 10 is further configured with a second output port LNA OUT for connecting to the rf transceiver, and the second output port LNA OUT is used for transmitting the low-frequency signal after receiving processing to the rf transceiver. The radio frequency PA Mid device 10 further includes a second receiving module 320. The second receiving module 320 is connected to the second output port LNA OUT, and is configured to support receiving processing of the low-frequency signal of the first standard from the first low-frequency antenna port ANT1, and transmit the processed signal to the second output port LNA OUT. A first end of a part of the second switch module 220 is connected to the second receiving module 320, and the second switch module 220 is further configured to select to transmit the low-frequency signal of the first system from the first low-frequency antenna port ANT1 to the second receiving module 320. That is, when transmitting a signal, the second switch module 220 may selectively connect the third transmitting module 130 or the fourth transmitting module 140 to the first low-frequency antenna port ANT1, so as to transmit a low-frequency signal; when receiving a signal, the second switch module 220 may selectively conduct the first low frequency antenna port ANT1 to the second receiving module 320, so as to implement receiving a low frequency signal.

Fig. 5 is a fifth schematic structural diagram of the rf PA Mid device 10 according to an embodiment, and referring to fig. 5, in one embodiment, the rf PA Mid device 10 is further configured with a first transceiving port TRX for connecting to an rf LFEM device. Wherein a first end of the first switch module 210 is connected to the first transceiving port TRX. It can be understood that, after the radio frequency PA Mid device 10 is packaged, the signal transmission path inside the device is fixed, and thus a more complex signal transceiving function cannot be realized. However, in this embodiment, by providing the first transceiving port TRX, the medium-high frequency signal received by the first medium-high frequency antenna port ANT3 may be transmitted to the radio frequency LFEM device for receiving processing, so as to expand the transceiving function of the radio frequency system, and thus, main diversity reception, MIMO reception, and the like may be performed on radio frequency signals of more frequency bands. For example, if the rf PA Mid device 10 only includes a B41 band receiving path connected to the first low frequency antenna port ANT1, the first medium and high frequency antenna port ANT3 may be controlled to simultaneously receive signals in the B41 band, and output the received signals to the rf LFEM device through the first transceiving port TRX, so as to implement two-way reception of signals in the B41 band.

Fig. 6 is a sixth schematic structural diagram of the radio frequency PA Mid device 10 according to an embodiment, which details the specific structure inside each of the transmitting module and the receiving module. Referring to fig. 6, the first transmission module 110 includes an intermediate frequency signal transmission unit connected to the first input port 4G MB RFIN and a high frequency signal transmission unit connected to the first input port 4G HB RFIN. The intermediate frequency signal transmitting unit comprises at least one intermediate frequency 4G power amplifier and a radio frequency switch connected with the intermediate frequency 4G power amplifier, so that signals of different frequency bands are output through different signal transmission paths. The high-frequency signal transmitting unit comprises a plurality of medium-high frequency 4G power amplifiers and radio frequency switches connected with the medium-high frequency 4G power amplifiers, so that signals of different frequency bands are transmitted to different medium-high frequency 4G power amplifiers and output through different signal transmission channels. The second transmitting module 120 includes at least one high frequency 2G power amplifier.

The first receiving module 310 includes a plurality of middle-high frequency 4G low noise amplifiers and radio frequency switches connected to the middle-high frequency 4G low noise amplifiers to receive signals of different frequency bands via different signal transmission paths. The first switch module 210 may be an SPnT switch, where one first end of the SPnT switch is connected to the second transmitting module 120, another first end of the SPnT switch is connected to the first transceiving port TRX, and the remaining first ends are connected to the first transmitting module 110 and the first receiving module 310. Furthermore, the first transmitting module 110 is further provided with a plurality of second middle-high frequency filters on the signal transmission path. Further, the second middle-high frequency filter of the partial band may be integrated, for example, into a multiplexer of B25/B66 band as shown in fig. 6. The first receiving module 310 is also provided with a plurality of second middle/high frequency filters on the signal transmission path. In this case, the second middle-high frequency filters on the transmission path and the reception path of the same frequency band signal may be integrally provided, for example, as a duplexer of B7 frequency band or a duplexer of B34/B39 frequency band as shown in fig. 6. It should be noted that, in order to simplify the drawing, the integrated duplexer is divided into a dashed box of the first transmission module 110 in fig. 6.

The third transmitting module 130 includes a low frequency signal transmitting unit connected to the third input port 4G LB RFIN, the low frequency signal transmitting unit including at least one low frequency 4G power amplifier, and an SPnT radio frequency switch connected to the low frequency signal transmitting unit. The fourth transmitting module 140 includes at least one low frequency 2G power amplifier. The second receiving module 320 includes a plurality of low frequency 4G low noise amplifiers and a radio frequency switch connected to the low frequency 4G low noise amplifiers to receive signals of different frequency bands via different signal transmission paths. The second switch module 220 may include an SPnT switch, where a first terminal of the SPnT switch is connected to the fourth transmitting module 140, and the remaining first terminals are connected to the third transmitting module 130 and the second receiving module 320. Furthermore, the third transmitting module 130 is further provided with a plurality of first low frequency filters on the signal transmission path. Also, the second receiving module 320 is also provided with a plurality of first low frequency filters on the signal transmission path. In this case, the first low-frequency filters on the transmission path and the reception path of the same-band signal may be integrated, for example, into a duplexer of B8 band or a duplexer of B12 band as shown in fig. 6. It should be noted that, in order to simplify the drawing, the integrated duplexer is divided into a dashed line box of the third transmitting module 130 in fig. 6.

Fig. 7 is a seventh schematic structural diagram of the rf PA Mid device 10 according to an embodiment, and referring to fig. 7, IN one embodiment, the rf PA Mid device 10 is further configured with a first auxiliary port LMBH LNA IN for connecting an antenna. The first receiving module 310 is further connected to the first auxiliary port LMBH LNA IN, and the first receiving module 310 is further configured to support a main set MIMO receiving process for the medium-high frequency signals of the first format from the first auxiliary port LMBH LNA IN. For example, the first receiving module 310 can be used to support a main set MIMO receiving process for the middle and high frequency signals of B40, B41, and so on. In this embodiment, by setting the master set MIMO receiving path of the medium-high frequency signal, the receiving speed of the radio frequency system for the medium-high frequency signal of the first standard can be effectively increased without increasing the occupied bandwidth.

With continued reference to fig. 7, in one embodiment, the rf PA Mid device 10 is further configured with a second auxiliary port LNA AUX. The second receiving module 320 is further connected to the second auxiliary port LNA _ AUX, and the second receiving module 320 is further configured to support a main set MIMO receiving process for the low-frequency signals of the first system from the second auxiliary port LNA _ AUX. In this embodiment, by setting the main set MIMO receiving path of the low frequency signal, the receiving speed of the radio frequency system for the low frequency signal of the first system can be effectively increased without increasing the occupied bandwidth.

Fig. 8 is an eighth schematic structural diagram of the rf PA Mid device 10 according to an embodiment, and referring to fig. 8, in one embodiment, the rf PA Mid device 10 is further configured with a first coupling output port CPLOUT and a second coupling output port CPLOUT for connecting the rf transceiver, and the rf PA Mid device 10 further includes a first coupling module 710 and a second coupling module 720. The first coupling module 710 is disposed on a first radio frequency path between the first switch module 210 and the first medium-high frequency antenna port ANT3, and is configured to couple a radio frequency signal on the first radio frequency path to output a first coupled signal through the first coupling output port CPLOUT. The second coupling module 720 is disposed on a second rf path between the second switch module 220 and the first low-frequency antenna port ANT1, and is configured to couple the rf signal on the second rf path to output a second coupled signal through the second coupling output port CPLOUT. The first coupling module 710 and the second coupling module 720 are configured to couple a radio frequency signal (a low frequency signal, an intermediate frequency signal, or a high frequency signal) on a radio frequency path to detect power information of the radio frequency signal. The coupling module can output a coupling signal to the radio frequency transceiver through the connected first coupling output port CPLOUT or the second coupling output port CPLOUT. Wherein, the coupling signal comprises a forward coupling signal and a backward coupling signal, and the forward power information of the low-frequency signal can be detected based on the forward coupling signal; based on the reverse coupling signal, reverse power information of the low frequency signal can be correspondingly detected.

IN one embodiment, a radio frequency system is provided, which includes the radio frequency PA Mid device 10 of any of the foregoing embodiments, wherein the second input port 2G HB IN, the first input port 4G HB RFIN, and the first output port LNA OUT of the radio frequency PA Mid device 10 are respectively connected to the radio frequency transceiver 20, and the first medium-high frequency antenna port ANT3 is connected to the first antenna ANT 1. Based on the rf PA Mid device 10 of the foregoing embodiment, the rf system of the embodiment of the present application can transmit and mainly receive two different medium-high frequency signals, and has a better integration level. Specifically, taking the rf PA Mid device 10 in the embodiment of fig. 8 as an example for explanation, fig. 9 is one of the structural schematic diagrams of the rf system in the embodiment, and includes the rf PA Mid device 10, the rf transceiver 20, and the first combiner 610 shown in the embodiment of fig. 8. Referring to fig. 9, in the present embodiment, the radio frequency transceiver 20 is respectively connected to the third input port 4GLB RFIN and the fourth input port 2G LB RFIN of the radio frequency PA Mid device 10. The radio frequency system further comprises a first combiner 610, two first ends of the first combiner 610 are connected with the first low-frequency antenna port ANT1 and the first medium-high frequency antenna port ANT3 in a one-to-one correspondence manner, and a second end of the first combiner 610 is connected with the first antenna ANT 1. By arranging the first combiner 610, signals of different frequency bands can be combined, so that the signals can be transmitted or received through the same antenna, and the number of antennas required to be connected by a radio frequency system can be reduced.

Further, the radio frequency PA Mid device 10 is further configured with a second transceiving port LB _ TRX, a low frequency transmitting port LB TX OUT, and a second auxiliary port LNA _ AUX, the second receiving module 320 is connected to the second auxiliary port LNA _ AUX, the second receiving module 320 is further configured to support a main set MIMO receiving process for the low frequency signals of the first standard from the second auxiliary port LNA _ AUX, and the radio frequency system further includes a first low frequency filter. Two first ends of the first low-frequency filter are respectively connected with the low-frequency transmitting port LB TX OUT and the second auxiliary port LNA _ AUX in a one-to-one correspondence manner, a second end of the first low-frequency filter is connected with the second transceiving port LB _ TRX, and the first low-frequency filter is used for filtering low-frequency signals of the first system.

Still further, when the first receiving module 310 is further configured to support a main set MIMO receiving process for the medium-high frequency signals of the first standard, the radio frequency PA Mid device 10 may be further configured with a first auxiliary port LMBH LNA IN. The radio frequency system further comprises a third combiner 630. Two first ends of the third hybrid 630 are respectively connected to the first auxiliary port LMBH LNA IN and the radio frequency transceiver 20, and a second end of the third hybrid 630 is connected to a third antenna ANT 3. When there are multiple frequency bands requiring the primary MIMO receiving process, the rf PA Mid device 10 may further be configured with multiple first auxiliary ports LMBH LNA IN. Accordingly, the radio frequency system may include a fourth switching module 240 and a plurality of third medium-high frequency filters 431. The third middle-high frequency filters 431 are respectively connected with the plurality of first auxiliary ports LMBH LNA IN a one-to-one correspondence manner, and are configured to perform filtering processing on the middle-high frequency signals of the first standard. A plurality of first ends of the fourth switch module 240 are respectively connected to the plurality of third middle-high frequency filters 431 in a one-to-one correspondence, a second end of the fourth switch module 240 is connected to the auxiliary antenna port ANT5, and the fourth switch module 240 is configured to select and transmit the middle-high frequency signal of the first standard to any one of the third middle-high frequency filters 431.

Based on the above structure, the radio frequency system of this embodiment can perform transmission, dominant set reception, and dominant set MIMO reception on low, medium, and high frequency signals of the first system and the second system. Referring to fig. 9, the working principle of the first standard is illustrated by taking the medium-high frequency signal as an N41 frequency band signal as an example.

And a transmitting link:

the signal is output from the TX0 HB port of the radio frequency transceiver 20; entering a radio frequency PA Mid device 10 from a first input port 4G HB RFIN; the SPDT switch is switched to contact 3, amplified by the first transmitting module 110, to the 3P3T switch; 3P3T is switched to contact 6, and is filtered by a first middle-high frequency filter and then is switched to a first switch module 210; the first switching module 210 switches to contact 1 to the second low frequency antenna port ANT 2; via Path03 to the first combiner 610; after being combined by the first combiner 610, the signals are output to an ANT1 antenna port through a Path01 Path;

primary set receive chain:

a signal enters from an ANT1 antenna port, passes through a Path01 Path and reaches a first combiner 610; after being split, the first combiner 610 passes through a Path03 to a first medium-high frequency antenna port ANT3 of the radio frequency PA Mid device 10; the first switching module 210 switches to contact 6, and after filtering by the first middle-high frequency filter, to the 3P3T switch; 3P3T to contact 3 to the SP4T #2 switch; SP4T #2 switches a single port and passes through a low noise amplifier; amplified by a low noise amplifier and switched to 6P 6T; 6P6T to contact 3 to the first output port LNA OUT3 output; the received signal enters the RF transceiver 20 through the SDR PRX4 port;

master set MIMO receive chain:

a signal enters from an ANT3 antenna port and passes through a Path10 to a third combiner 630; after being shunted by the third combiner 630, the third combiner goes to the fourth switching module 240; the fourth switching module 240 switches to contact 4, via Path13, to the third medium-high frequency filter 431; filtered by the third middle-high frequency filter 431 to the first auxiliary port LMBH LNA IN2 of the rf PA Mid device 10; amplified by a low noise amplifier and switched to 6P 6T; 6P6T to contact 6 to the first output port LNA OUT6 output; the received signal enters the RF transceiver 20 through the SDR PRX3 port;

it should be noted that, when the first receiving module 310 does not support the dominant set MIMO reception, the first receiving module 310 does not need to be connected to the first medium-high frequency antenna port ANT3 through a port, but the transmitting and dominant set receiving paths and the operation principle of the radio frequency system are the same as those in fig. 9, and therefore are not described again.

Fig. 10 is a second structural schematic diagram of the rf system of an embodiment, and referring to fig. 10, in one embodiment, the rf system further includes an rf LFEM device 30. The radio frequency LFEM device 30 is configured with a third output port LNA OUT MHB and a fourth output port LNA OUT LB for connecting the radio frequency transceiver 20, and a third low frequency antenna port LB ANT and a fourth medium high frequency antenna port MHB ANT for connecting the second antenna ANT 2. The radio frequency LFEM device 30 includes a third receiving module 330, a fourth receiving module 340, and a second combiner 620. The third receiving module 330 is configured to support diversity receiving processing on the medium-high frequency signal of the first format from the fourth medium-high frequency antenna port MHB ANT, and the fourth receiving module 340 is configured to support diversity receiving processing on the low-frequency signal of the first format from the third low-frequency antenna port LB ANT. Two first ends of the second combiner 620 are respectively connected to the third low-frequency antenna port LB ANT and the fourth medium-high frequency antenna port MHB ANT in a one-to-one correspondence manner, and a second end of the second combiner 620 is connected to a second antenna ANT 2.

Further, the rf LFEM device 30 is further configured with a third auxiliary port LNA AUX MHB for connecting a fourth antenna ANT 4. The third receiving module 330 is further configured to support diversity MIMO receiving processing on the medium-high frequency signals of the first standard from a third auxiliary port LNA AUX MHB. The radio frequency system further comprises a fourth combiner 640, a fourth medium-high frequency filter 441 and a fourth low frequency filter 541. A second end of the fourth combiner 640 is connected to the fourth antenna ANT 4. The fourth middle-high frequency filter 441 is disposed on a signal transmission path between the fourth combiner 640 and the third receiving module 330, and is configured to perform filtering processing on the middle-high frequency signal of the first standard. The fourth low-frequency filter 541 is disposed on a signal transmission path between the fourth combiner 640 and the radio frequency transceiver 20, and is configured to perform filtering processing on the low-frequency signal of the first standard. In this embodiment, there is no need to provide a transmission line for the diversity signal in the rf PA Mid device 10, and there is no need to provide an rf switch for switching a transmission path for the diversity signal, so that the size of the rf PA Mid device 10 can be reduced.

Based on the above structure, the radio frequency system of this embodiment can also perform diversity reception and diversity MIMO reception on the low, medium, and high frequency signals of the first system and the second system. Referring to fig. 10, the working principle of the first standard is illustrated by taking the medium-high frequency signal as an N41 frequency band signal as an example. It can be understood that the operation principle of the transmission, the dominant set reception and the dominant set MIMO reception in this embodiment is similar to that in the embodiment of fig. 9, and is not described herein again.

N41 diversity receive chain:

the signal enters from an ANT2 antenna port, passes through a Path09 Path, and reaches a second combiner 620; after being branched, the second combiner 620 is connected to a high-frequency antenna port MHB ANT of the radio frequency LFEM device 30 through a Path 07; SP8T switches to contact 1 to SP3T #3 switch; SP3T #3 is switched to a single port and amplified by a low noise amplifier to a 6P6T switch; 6P6T to contact 1 to the third output port LNA OUT MHB1 output; the received signal enters the rf transceiver 20 through the SDR DRX0 port.

N41 diversity MIMO receive chain:

the signal enters from an ANT4 antenna port, passes through a Path15 Path, and reaches a fourth combiner 640; after being branched, the fourth combiner 640 switches to the SP3T #2 switch; SP3T #2 switches to contact 4, via Path18, to the fourth medium-high frequency filter; the fourth middle and high frequency filter, to a third auxiliary port LNA AUX MHB5 of the rf LFEM device 30; SP3T #7 switches the single port to the low noise amplifier path; amplified by a low noise amplifier and switched to 6P 6T; 6P6T switches to contact 6, to the LNA OUT MHB6 port output; the received signal enters the rf transceiver 20 via the SDR DRXA port.

Fig. 11 is a ninth schematic structural diagram of an embodiment of a radio frequency PA Mid device 10, and referring to fig. 11, in one embodiment, the radio frequency PA Mid device 10 is further configured with a first coupling output port CPL OUT for connecting with the radio frequency transceiver 20, and the radio frequency PA Mid device 10 further includes a first coupling module 710, a second coupling module 720 and a sixth switching module 260.

The first coupling module 710 is disposed on a first rf path between the first switch module 210 and the first medium-high frequency antenna port ANT3, and is configured to couple an rf signal on the first rf path to output a first coupled signal. The second coupling module 720 is disposed on a second rf path between the second switch module 220 and the first low frequency antenna port ANT1, and is configured to couple an rf signal on the second rf path to output a second coupled signal. Two first ends of the sixth switch module 260 are respectively connected to the first coupling module 710 and the second coupling module 720 in a one-to-one correspondence manner, a second end of the sixth switch module 260 is connected to the first coupling output port CPLOUT, and the sixth switch module 260 is configured to selectively transmit the first coupling signal or the second coupling signal to the first coupling output port CPLOUT. It can be understood that the first coupling module 710 and the second coupling module 720 of this embodiment work in a similar manner to the embodiment of fig. 8, and are not described herein again. In this embodiment, by cascading the first coupling module 710 and the second coupling module 720, when the two coupling modules do not work simultaneously, the coupling signal can be transmitted to the rf transceiver 20 through the switching function of the sixth switch module 260 only by using one coupling output port CPLOUT, so that the number of ports required to be arranged on the rf PA Mid device 10 can be reduced.

Fig. 12 is a cross-sectional view of a schematic structure of an embodiment of an rf PA Mid device 10, and referring to fig. 12, in an embodiment, the rf PA Mid device 10 is configured with a plurality of the first transceiving ports TRX. The radio frequency PA Mid device 10 further includes an SP3T switch, a plurality of second terminals of the SP3T switch are respectively connected to the plurality of first transceiving ports TRX in a one-to-one correspondence, and another first terminal of the first switch module 210 is connected to the first terminal of the SP3T switch. In this embodiment, by providing a plurality of first transceiving ports TRX, the rf PA Mid device 10 can be connected to other devices for function expansion, thereby providing a more flexible rf PA Mid device 10.

With continued reference to fig. 12, in one embodiment, the rf PA Mid device 10 is further configured with a second medium-high frequency antenna port ANT4 for connecting an antenna. Wherein the other second terminal of the first switch module 210 is connected to the second middle and high frequency antenna port ANT 4. In this embodiment, the diversity signal can be transmitted through the rf PA Mid device 10, so as to reduce the external routing length of the rf PA Mid device 10.

With continued reference to fig. 12, in one embodiment, the rf PA Mid device 10 is further configured with a second low frequency antenna port ANT2 for connecting an antenna, and a diversity receive port LB DRX for connecting the rf LFEM device 30. The radio frequency PA Mid device 10 further includes a third switching module 230. The third switch module 230 includes two first ends and two second ends, the two first ends of the third switch module 230 are respectively connected to the second end of the second switch module 220 and the diversity reception port LB DRX in a one-to-one correspondence, and the two second ends of the third switch module 230 are respectively connected to the first low frequency antenna port ANT1 and the second low frequency antenna port ANT2 in a one-to-one correspondence. In this embodiment, by setting the diversity reception port LB DRX, the rf PA Mid device 10 can be connected to other devices for function expansion, thereby providing a more flexible rf PA Mid device 10.

In one embodiment, a radio frequency system is provided based on the radio frequency PA Mid device 10 of the embodiment in fig. 12, and fig. 13 is a third schematic structural diagram of the radio frequency system of the embodiment, including the radio frequency PA Mid device 10 shown in the embodiment in fig. 12. Referring to fig. 13, in the present embodiment, the rf system further includes an rf LFEM device 30. The radio frequency LFEM device 30 is configured with a third output port LNA OUT MHB and a fourth output port LNA OUT LB for connecting the radio frequency transceiver 20, and a third low frequency antenna port LB ANT and a fourth medium high frequency antenna port MHB ANT for connecting the radio frequency PA Mid device 10, the third low frequency antenna port LB ANT being connected with the first transceiving port TRX of the radio frequency PA Mid device 10, the fourth medium high frequency antenna port MHB ANT being connected with the diversity receiving port LB DRX of the radio frequency PA Mid device 10. The radio frequency LFEM device 30 includes a third receiving module 330, a fourth receiving module 340, and a second combiner 620. The third receiving module 330 is configured to support diversity receiving processing on the medium-high frequency signal of the first format from the fourth medium-high frequency antenna port MHB ANT, and the fourth receiving module 340 is configured to support diversity receiving processing on the low-frequency signal of the first format from the third low-frequency antenna port LB ANT. Two first ends of the second combiner 620 are respectively connected to the second low-frequency antenna port ANT2 and the second medium-high frequency antenna port ANT4 in a one-to-one correspondence manner, and a second end of the second combiner 620 is connected to a second antenna ANT 2.

Based on the above structure, the radio frequency system of this embodiment can perform transmission, main set reception, main set MIMO reception, diversity reception, and diversity MIMO reception on the low, medium, and high frequency signals of the first system and the second system. Referring to fig. 13, the working principle of the first system is illustrated by taking the first system as an example, where the medium-high frequency signal is an N41 frequency band signal, and the first system as a low frequency signal is a B8 frequency band signal.

B8 transmit link:

the signal is output from TX0 LB1 port of radio frequency transceiver 20; entering the radio frequency PA Mid device 10 from the third input port 4G LB RFIN; after the signal is amplified by the third transmitting module 130, the signal is switched to the SP9T switch; SP9T switches to contact 6, through B8 diplexer, to SP 10T; SP10T switches the single port to the third switch module 230; the third switching module 230 switches to contact 3 to the first low frequency antenna port ANT 1; via Path02 to the first combiner 610; the first combiner 610 combines the signals and then reaches an ANT1 antenna port through a Path01 Path.

B8 primary set receiving link:

the signal enters from an ANT1 antenna port, passes through a Path01 Path, and reaches a first combiner 610; the first combiner 610 branches and then passes through a Path02 to a first low-frequency antenna port ANT1 of the rf PA Mid device 10; SP10T switches to contact 6 to SP4T switch; amplified by a low noise amplifier and then switched to a DPDT #2 switch; DPDT #2 switches to contact 1 to the second output port LNA OUT1 output; the received signal enters the rf transceiver 20 through the SDR PRXE port.

B8 diversity receive chain:

the signal enters from an ANT2 antenna port, passes through a Path09 Path, and reaches a second combiner 620; the second combiner 620 is branched and then passes through a Path07 to a second low-frequency antenna port ANT2 of the radio frequency PA Mid device 10; the third switching module 230 switches to contact 2 to the LB DRX port; via Path05 to a third low frequency antenna port LB ANT of the radio frequency LFEM device 30; SP6T switched to contact 5, to the B8 PRX path; SP3T #2 switches a single port, and the single port is amplified by a low noise amplifier and then is transmitted to a DPDT switch; DPDT switches to contact 2, to LNA OUT LB 2; the received signal enters the rf transceiver 20 through the SDR DRX10 port.

N41 transmit chain:

the signal is output from the TX0 HB port of the radio frequency transceiver 20; entering a radio frequency PA Mid device 10 from a first input port 4G HB RFIN; the SPDT switch is switched to contact 3, amplified by the first transmitting module 110, and switched to the 3P3T switch; 3P3T is switched to contact 6, filtered by the first middle and high frequency filter, and sent to the first switch module 210; the first switching module 210 switches to contact 1 to the first medium-high frequency antenna port ANT 3; via Path03 to the first combiner 610; after being combined by the first combiner 610, the combined signal is output to an ANT1 antenna port through a Path 01.

N41 primary set receiving link:

the signal enters from an ANT1 antenna port, passes through a Path01 Path, and reaches a first combiner 610; after being split, the first combiner 610 passes through a Path03 to a first medium-high frequency antenna port ANT3 of the radio frequency PA Mid device 10; the first switching module 210 switches to contact 6, and after filtering by the first middle-high frequency filter, to the 3P3T switch; 3P3T to contact 3, to the SP4T #2 switch; SP4T #2 switches single port, passes through the low noise amplifier path; amplified by a low noise amplifier and switched to 6P 6T; 6P6T to contact 3 to the first output port LNA OUT3 output; the received signal enters the rf transceiver 20 through the SDR PRX4 port.

N41 diversity receive chain:

the signal enters from an ANT2 antenna port, passes through a Path09 Path and reaches a second combiner 620; after being branched, the second combiner 620 is connected to an ANT4 port of the radio frequency LFEM device 30 through a Path 08; SP8T switches to contact 9, to TRX2 port; through Path06, to the high frequency antenna port MHB ANT of the rf LFEM device 30; SP8T switches to contact 1 to SP3T #3 switch; SP3T #3 is switched to a single port and amplified by a low noise amplifier to a 6P6T switch; 6P6T to contact 1 to the third output port LNA OUT MHB1 output; the received signal enters the rf transceiver 20 through the SDR DRX0 port.

N41 master set MIMO receive chain:

a signal enters from an ANT3 antenna port and passes through a Path10 to a third combiner 630; after being shunted by the third combiner 630, the third combiner goes to the fourth switching module 240; via Path13 to a third medium-high frequency filter 431; filtered by the third middle-high frequency filter 431 to the first auxiliary port LMBH LNA IN2 of the rf PA Mid device 10; amplified by a low noise amplifier and switched to 6P 6T; 6P6T switches to contact 6 to the first output port LNA OUT6 output; the received signal enters the rf transceiver 20 through the SDR PRX3 port.

N41 diversity MIMO receive chain:

the signal enters from an ANT4 antenna port, passes through a Path15 Path, and reaches a fourth combiner 640; after being combined, the fourth combiner 640 switches to the SP3T #2 switch; a Path18 is passed to a fourth medium-high frequency filter; the fourth middle and high frequency filter, to a third auxiliary port LNA AUX MHB5 of the rf LFEM device 30; SP3T #7 switches the single port to the low noise amplifier path; after being amplified by a low noise amplifier, the mixed signal is switched to 6P 6T; 6P6T switches to contact 6, to the LNA OUT MHB6 port output; the received signal enters the rf transceiver 20 via the SDR DRXA port.

Fig. 14 is an eleventh schematic diagram of a structure of an rf PA Mid device 10 according to an embodiment, and referring to fig. 14, in an embodiment, the rf PA Mid device 10 is further configured with a first receiving port B28A PRX MIMO for connecting antennas, the second receiving module 320 is further configured to support a dominant set MIMO receiving process for low-frequency signals of the first format from the first receiving port B28A PRX MIMO, and the rf PA Mid device 10 further includes a third low-frequency filter 531. The third low frequency filter 531 is respectively connected to the main set MIMO receiving path of the low frequency signal in the second receiving module 320 and the first receiving port B28A PRX MIMO, and is configured to perform filtering processing on the low frequency signal of the first standard. In this embodiment, by providing the third low frequency filter 531, the low frequency signal of the first system input through the first receiving port B28APRX MIMO may be filtered, so as to improve the signal receiving quality.

With continued reference to fig. 14, in one embodiment, the rf PA Mid device 10 is further configured with an auxiliary antenna port ANT5 for connecting antennas, and the first receiving module 310 is further configured to support a master MIMO receiving process on the medium-high frequency signals of the first format from the auxiliary antenna port ANT 5. The first receiving module 310 further includes a plurality of third middle-high frequency filters 431, where the plurality of third middle-high frequency filters 431 are respectively disposed on the plurality of main-set MIMO receiving paths of the middle-high frequency signals of the first standard in a one-to-one correspondence manner, and are configured to perform filtering processing on the middle-high frequency signals of the first standard. The radio frequency PA Mid device 10 further includes a fourth switching module 240. First ends of the fourth switch module 240 are respectively connected to the third middle-high frequency filters 431 in a one-to-one correspondence, and a second end of the fourth switch module 240 is connected to the auxiliary antenna port ANT 5.

In one embodiment, a radio frequency system is provided based on the radio frequency PA Mid device 10 in the embodiment shown in fig. 14, and fig. 15 is a fourth schematic structural diagram of the radio frequency system in the embodiment shown in fig. 14, and includes the radio frequency PA Mid device 10 in the embodiment shown in fig. 14. Referring to fig. 15, in this embodiment, when further configured with a first receiving port B28A PRX MIMO and an auxiliary antenna port ANT5, the radio frequency system further includes a third combiner 630. Two first ends of the third hybrid 630 are respectively connected to the auxiliary antenna port ANT5 and the first receiving port B28APRX MIMO in a one-to-one correspondence manner, and a second end of the third hybrid 630 is connected to a third antenna ANT 3.

Based on the above structure, the radio frequency system of this embodiment can perform transmission, master set reception, and master set MIMO reception on low, medium, and high frequency signals of the first system and the second system. Referring to fig. 15, the working principle of the first standard is illustrated by taking the medium-high frequency signal as an N41 frequency band signal as an example.

N41 transmit chain:

the signal is output from the TX0 HB port of radio-frequency transceiver 20; entering a radio frequency PA Mid device 10 from a first input port 4G HB RFIN; the SPDT switch is switched to contact 3, amplified by the first transmitting module 110, to the 3P3T switch; 3P3T is switched to contact 6, filtered by the first middle and high frequency filter, and sent to the first switch module 210; the first switching module 210 switches to contact 1 to the first medium-high frequency antenna port ANT 3; via Path03 to the first combiner 610; after being combined by the first combiner 610, the combined signal is output to an ANT1 antenna port through a Path 01.

N41 primary set receiving link:

the signal enters from an ANT1 antenna port, passes through a Path01 Path, and reaches a first combiner 610; after being split, the first combiner 610 passes through a Path03 to a first medium-high frequency antenna port ANT3 of the radio frequency PA Mid device 10; the first switching module 210 switches to contact 6, and after filtering by the first middle-high frequency filter, to the 3P3T switch; 3P3T to contact 3, to the SP4T #2 switch; SP4T #2 switches a single port and passes through a low noise amplifier; amplified by a low noise amplifier and switched to 6P 6T; 6P6T to contact 3 to the first output port LNA OUT3 output; the received signal enters the rf transceiver 20 through the SDR PRX4 port.

N41 diversity receive chain:

the signal enters from an ANT2 antenna port, passes through a Path09 Path, and reaches a second combiner 620; after being branched, the second combiner 620 is connected to an ANT4 port of the radio frequency LFEM device 30 through a Path 08; SP8T switches to contact 9, to TRX2 port; through Path06, to the high frequency antenna port MHB ANT of the rf LFEM device 30; SP8T switches to contact 1 to SP3T #3 switch; SP3T #3 is switched to a single port and amplified by a low noise amplifier to a 6P6T switch; 6P6T switches to contact 1 to the third output port LNA OUT MHB1 output; the received signal enters the rf transceiver 20 through the SDR DRX0 port.

N41 master set MIMO receive chain:

a signal enters from an ANT3 antenna port and passes through a Path10 to a third combiner 630; after being split by the third combiner 630, the signals are transmitted to an ANT5 port of the radio frequency PA Mid device 10; SP3T #3 is switched to contact 4, and is filtered by a Filter to be sent to a low noise amplifier; after being amplified by a low noise amplifier, the mixed signal is switched to 6P 6T; 6P6T to contact 6 to the first output port LNA OUT6 output; the received signal enters the rf transceiver 20 through the SDR PRX3 port.

N41 diversity MIMO receive chain:

the signal enters from an ANT4 antenna port, passes through a Path15 Path, and reaches a fourth combiner 640; after being combined, the fourth combiner 640 switches to the SP3T #2 switch; a Path18 is passed to a fourth medium-high frequency filter; the fourth middle and high frequency filter, to a third auxiliary port LNA AUX MHB5 of the rf LFEM device 30; SP3T #7 switches the single port to the low noise amplifier path; amplified by a low noise amplifier and switched to 6P 6T; 6P6T switches to contact 6, to the LNA OUT MHB6 port output; the received signal enters the rf transceiver 20 via the SDR DRXA port.

Fig. 16 is a twelfth structural schematic diagram of the radio frequency PA Mid device 10 according to an embodiment, and referring to fig. 16, in an embodiment, the second receiving module 320 is further configured to support a dominant-set MIMO receiving process for the low-frequency signals of the first system from the auxiliary antenna port ANT 5. The second receiving module 320 further includes a third low frequency filter 531, where the third low frequency filter 531 is disposed on the MIMO receiving path of the main set of low frequency signals of the first system, and is configured to perform filtering processing on the low frequency signals of the first system. The radio frequency PA Mid device 10 further includes a third combiner 630, two first ends of the third combiner 630 are respectively connected to the second end of the fourth switch module 240 and the third low-frequency filter 531 in a one-to-one correspondence manner, and a second end of the third combiner 630 is connected to the auxiliary antenna port ANT 5. In this embodiment, by providing the third combiner 630, the medium-high frequency signal and the low-frequency signal of the first standard may be transmitted through the same auxiliary antenna port ANT5, so as to reduce the number of ports that need to be provided for the radio frequency PAMid device 10, and reduce signal routing outside the device.

In one embodiment, a radio frequency system is provided based on the radio frequency PA Mid device 10 of the embodiment in fig. 16, and fig. 17 is a fifth schematic structural diagram of the radio frequency system of the embodiment, including the radio frequency PA Mid device 10 shown in the embodiment in fig. 16. Referring to fig. 17, in the present embodiment, the auxiliary antenna port ANT5 is connected to a third antenna ANT 3.

Based on the above structure, the radio frequency system of this embodiment can perform transmission, main set reception, main set MIMO reception, diversity reception, and diversity MIMO reception on the low, medium, and high frequency signals of the first system and the second system. Referring to fig. 17, the working principle of the low-frequency signal of the first standard, which is an N28 frequency band signal, is illustrated.

N28 transmit chain:

n28 TX is output from TX0 LB1 port of radio frequency transceiver 20; entering the radio frequency PA Mid device 10 from the third input port 4G LB RFIN; after being amplified by LB PA, the mixed solution is switched on and off by SP 9T; SP9T switches to contact 9 to SPDT #1 switch; SPDT #1 is filtered by B28 duplexer and then goes to SP10T switch; SP10T switches to contact 11 to the third switch module 230 switch; the third switching module 230 switches to contact 3 to the first low frequency antenna port ANT 1; via Path02 to the first combiner 610; after being combined by the first combiner 610, the combined signal is output to an ANT1 antenna port through a Path 01.

N28 primary set receive link:

a signal enters from an ANT1 antenna port, passes through a Path01 Path and reaches a first combiner 610; the first combiner 610 branches and then reaches a first low-frequency antenna port ANT1 of the radio frequency PA Mid device 10 through a Path 02; SP10T switches to contact 9, filtered by the B28 diplexer, to the SP6T switch; SP6T is switched to a single port and is amplified by a low noise amplifier to a DPDT #2 switch; DPDT #2 switches to contact 2 to LNA OUT2 port output; the received signal enters the rf transceiver 20 through the SDR PRX10 port.

N28 diversity receive chain:

the signal enters from an ANT2 antenna port, passes through a Path09 Path and reaches a second combiner 620; after being split, the second combiner 620 passes through a Path07 to a second low-frequency antenna port ANT2 of the rf PA Mid device 10; the third switch module 230 switches to contact 2, to the LB DRX port; via Path05 to a third low frequency antenna port LB ANT of the radio frequency LFEM device 30; SP6T switches to contact 5, filtered by N28 filter, to the fourth switch module 240; the fourth switch module 240 switches the single port to the DPDT switch after being amplified by the low noise amplifier; the DPDT switch switches to contact 1 to the fourth output port LNA OUT LB 1; the received signal enters the rf transceiver 20 through the SDR drx port.

N28 master set MIMO receive chain:

signals enter from an ANT3 antenna port and pass through a Path10 Path to an ANT5 port of the radio frequency PA Mid device 10; after being branched by the third combiner 630, the third combiner is filtered by an N28 filter and is switched to an SP5T switch; SP5T switches a single port, and the single port is amplified by a low noise amplifier and then is switched to a DPDT #2 switch; DPDT #2 switches to contact 1 to the second output port LNA OUT1 output; the received signal enters the rf transceiver 20 through the SDR PRXE port.

N28 diversity MIMO receive chain:

the signal enters from an ANT4 antenna port, passes through a Path15 Path, and reaches a fourth combiner 640; after being split by the fourth combiner 640, the signal passes through a Path19 to be filtered by a filter, and a received signal enters the rf transceiver 20 through an SDR DRX5 port.

Fig. 18 is a thirteenth schematic structural diagram of a radio frequency PA Mid device 10 according to an embodiment, referring to fig. 18, in an embodiment, the first receiving module 310 is further configured to support a master MIMO receiving process for the medium-high frequency signals of the first standard from the auxiliary antenna port ANT5, the first receiving module 310 further includes a plurality of third medium-high frequency filters 431, and the plurality of third medium-high frequency filters 431 are respectively disposed on the plurality of master MIMO receiving paths for the medium-high frequency signals of the first standard in a one-to-one correspondence manner, and are configured to perform a filtering process for the medium-high frequency signals of the first standard. The second receiving module 320 is further configured to support a master MIMO receiving process for the low-frequency signals of the first standard from the auxiliary antenna port ANT5, and the second receiving module further includes a third low-frequency filter 531, where the third low-frequency filter 531 is disposed on a master MIMO receiving path for the low-frequency signals of the first standard, and is configured to perform a filtering process for the low-frequency signals of the first standard.

The rf PA Mid device 10 further includes a fifth switch module 250. A plurality of first ends of the fifth switch module 250 are respectively connected to the plurality of third middle/high frequency filters 431 and the third low frequency filters 531 in a one-to-one correspondence, and a second end of the fifth switch module 250 is connected to the auxiliary antenna port ANT 5. In this embodiment, the fifth switch module 250 is provided to replace the path selection function of the fourth switch module 240 and the third combiner 630 in the embodiment of fig. 16, so as to provide a rf PA Mid device 10 with higher integration. It can be understood that the radio frequency system formed by the radio frequency PA Mid device 10 according to the embodiment in fig. 18 is similar to the embodiment in fig. 17, and therefore, the description thereof is omitted.

Fig. 19 is a sixth schematic structural diagram of an rf system according to an embodiment, which includes an rf transceiver 20, an rf LFEM device 30, and an rf PA Mid device 10 according to the embodiment shown in fig. 12. Wherein the radio frequency LFEM device 30 is further configured with a fifth medium high frequency antenna port DRX MIMO IN and a fourth low frequency antenna port B28A DRX MIMO for connecting a fourth antenna ANT 4. The third receiving module 330 is further configured to support diversity MIMO receiving processing on the medium-high frequency signals of the first standard from the fifth medium-high frequency antenna port DRX MIMO IN, the fourth receiving module 340 is further configured to support diversity MIMO receiving processing on the low-frequency signals of the first standard from the fourth low-frequency antenna port B28A DRX MIMO, and the radio frequency system further includes a fourth combiner 640. Two first ends of the fourth combiner 640 are respectively connected to the fifth medium-high frequency antenna port DRX MIMO IN and the fourth low frequency antenna port B28A DRX MIMO IN a one-to-one correspondence, and a second end of the fourth combiner 640 is connected to the fourth antenna ANT 4.

Based on the above structure, the radio frequency system of this embodiment can perform transmission, main set reception, main set MIMO reception, diversity reception, and diversity MIMO reception on the low, medium, and high frequency signals of the first system and the second system. Referring to fig. 19, the working principle of the first system is illustrated by taking the first system as an example, where the medium-high frequency signal is an N41 frequency band signal, and the first system as a low frequency signal is a B8 frequency band signal.

B8 transmit link:

the signal is output from TX0 LB1 port of radio frequency transceiver 20; entering the radio frequency PA Mid device 10 from the third input port 4G LB RFIN; after the signal is amplified by the third transmitting module 130, the signal is switched to the SP9T switch; SP9T switched to contact 6, through B8 diplexer, to SP 10T; SP10T switches the single port to the third switch module 230; the third switching module 230 switches to contact 3 to the first low frequency antenna port ANT 1; via Path02 to the first combiner 610; the first combiner 610 combines the signals and then reaches an ANT1 antenna port through a Path01 Path.

B8 primary set receiving link:

the signal enters from an ANT1 antenna port, passes through a Path01 Path, and reaches a first combiner 610; the first combiner 610 branches and then passes through a Path02 to a first low-frequency antenna port ANT1 of the radio frequency PAMid device 10; SP10T switches to contact 6 to SP4T switch; amplified by a low noise amplifier and then switched to a DPDT #2 switch; DPDT #2 switches to contact 1 to the second output port LNA OUT1 output; the received signal enters the rf transceiver 20 through the SDR PRXE port.

B8 diversity receive chain:

the signal enters from an ANT2 antenna port, passes through a Path09 Path and reaches a second combiner 620; the second combiner 620 is branched and then passes through a Path07 to a second low-frequency antenna port ANT2 of the radio frequency PA Mid device 10; the third switch module 230 switches to contact 2, to the LB DRX port; via Path05 to a third low frequency antenna port LB ANT of the radio frequency LFEM device 30; SP6T switched to contact 5, to the B8 PRX path; SP3T #2 switches a single port, and the single port is amplified by a low noise amplifier and then is transmitted to a DPDT switch; DPDT switches to contact 2, to LNA OUT LB 2; the received signal enters the rf transceiver 20 through the SDR DRX10 port.

N41 transmit chain:

N41 primary set receiving link:

the signal enters from an ANT1 antenna port, passes through a Path01 Path, and reaches a first combiner 610; after being split, the first combiner 610 passes through a Path03 to a first medium-high frequency antenna port ANT3 of the radio frequency PA Mid device 10; the first switching module 210 switches to contact 6, and after filtering by the first middle-high frequency filter, to the 3P3T switch; 3P3T to contact 3 to the SP4T #2 switch; SP4T #2 switches a single port and passes through a low noise amplifier; amplified by a low noise amplifier and switched to 6P 6T; 6P6T to contact 3 to the first output port LNA OUT3 output; the received signal enters the rf transceiver 20 through the SDR PRX4 port.

N41 diversity receive chain:

N41 master set MIMO receive chain:

a signal enters from an ANT3 antenna port and passes through a Path10 to a third combiner 630; after being shunted, the third combiner 630 goes to the fourth switching module 240; via Path13 to a third medium-high frequency filter 431; filtered by the third middle-high frequency filter 431 to the first auxiliary port LMBH LNA IN2 of the rf PA Mid device 10; amplified by a low noise amplifier and switched to 6P 6T; 6P6T to contact 6 to the first output port LNA OUT6 output; the received signal enters the rf transceiver 20 through the SDR PRX3 port.

N41 diversity MIMO receive chain:

the signal enters from an ANT4 antenna port, passes through a Path15 Path, and reaches a fourth combiner 640; after being combined, the fourth combiner 640 switches to the SP3T #2 switch; via Path17 to the DRX MIMO IN port of the rf LFEM device 30; SP3T #8 is switched to contact 4, filtered by a Filter and switched to a SP3T #7 switch; SP3T #7 switches the single port to the low noise amplifier path; after being amplified by a low noise amplifier, the mixed signal is switched to 6P 6T; 6P6T switches to contact 6, to the LNA OUT MHB6 port output; the received signal enters the rf transceiver 20 via the SDR DRXA port.

Fig. 20 is a seventh schematic structural diagram of an rf system according to an embodiment, which includes an rf transceiver 20, an rf LFEM device 30, and an rf PA Mid device 10 according to the embodiment shown in fig. 12. Wherein, the radio frequency LFEM device 30 is further configured with a fifth medium-high frequency antenna port DRX MIMO IN for connecting a fourth antenna ANT4, the third receiving module 330 is further configured to support diversity MIMO receiving processing of the medium-high frequency signals of the first system from the fifth medium-high frequency antenna port DRX MIMO IN, and the radio frequency LFEM device 30 further includes a fourth combiner 640. Two first ends of the fourth combiner 640 are respectively connected to the third receiving module 330 and the fourth receiving module 340 IN a one-to-one correspondence manner, and a second end of the fourth combiner 640 is connected to the fifth medium-high frequency antenna port DRX MIMO IN. In this embodiment, the fourth middle-high frequency filter 441 and the fourth combiner 640 are integrated in the rf LFEM device 30, so that the number of external filters and combiners in the rf system can be reduced, thereby improving the integration level of the rf system.

Based on the above structure, the radio frequency system of this embodiment can perform transmission, main set reception, main set MIMO reception, diversity reception, and diversity MIMO reception on the low, medium, and high frequency signals of the first system and the second system. Referring to fig. 20, the working principle of the first standard is illustrated by taking the medium-high frequency signal as an N41 frequency band signal as an example.

N41 transmit chain:

the signal is output from the TX0 HB port of the radio frequency transceiver 20; entering a radio frequency PA Mid device 10 from a first input port 4G HB RFIN; the SPDT switch is switched to contact 3, amplified by the first transmitting module 110, and switched to the 3P3T switch; 3P3T is switched to contact 6, filtered by a first middle-high frequency filter, and sent to the first switch module 210; the first switching module 210 switches to contact 1 to the first medium-high frequency antenna port ANT 3; via Path03 to the first combiner 610; after being combined by the first combiner 610, the combined signal is output to an ANT1 antenna port through a Path 01.

N41 primary set receiving link:

the signal enters from an ANT1 antenna port, passes through a Path01 Path, and reaches a first combiner 610; the first combiner 610 branches and then reaches a first medium-high frequency antenna port ANT3 of the radio frequency PA Mid device 10 through a Path 03; the first switching module 210 switches to contact 6, and after filtering by the first middle-high frequency filter, to the 3P3T switch; 3P3T to contact 3 to the SP4T #2 switch; SP4T #2 switches single port, passes through the low noise amplifier path; amplified by a low noise amplifier and switched to 6P 6T; 6P6T to contact 3 to the first output port LNA OUT3 output; the received signal enters the rf transceiver 20 through the SDR PRX4 port.

N41 diversity receive chain:

N41 master set MIMO receive chain:

a signal enters from an ANT3 antenna port and passes through a Path10 to a third combiner 630; after being branched, the third combiner 630 reaches an ANT5 port of the radio frequency PA Mid device 10; SP3T #3 is switched to contact 4, and is filtered by a Filter to be sent to a low noise amplifier; amplified by a low noise amplifier and switched to 6P 6T; 6P6T switches to contact 6 to the first output port LNA OUT6 output; the received signal enters the rf transceiver 20 through the SDR PRX3 port.

N41 diversity MIMO receive chain:

signals enter from an ANT4 antenna port and pass through a Path15 Path to a DRX MIMO IN port of the radio frequency LFEM device 30; after being branched, the fourth combiner 640 switches to the SP3T #8 switch; the SP3T #8 switches a single port, and is filtered by a Filter to be switched to an SP3T #7 switch; SP3T #7 switches the single port to the low noise amplifier path; after being amplified by a low noise amplifier, the mixed signal is switched to 6P 6T; 6P6T switches to contact 6, to the LNA OUT MHB6 port output; the received signal enters the rf transceiver 20 via the SDR DRXA port.

Fig. 21 is an eighth schematic structural diagram of an rf system according to an embodiment, which includes an rf transceiver 20, an rf LFEM device 30, and an rf PA Mid device 10 according to the embodiment shown in fig. 12. Wherein, the radio frequency LFEM device 30 is further configured with a fifth medium and high frequency antenna port DRX MIMO IN for connecting a fourth antenna ANT4, the third receiving module 330 is further configured to support a diversity MIMO receiving process of the medium and high frequency signals of the first system from the fifth medium and high frequency antenna port DRX MIMO IN, the fourth receiving module 340 is further configured to support a diversity MIMO receiving process of the low frequency signals of the first system from the fifth medium and high frequency antenna port DRX MIMO IN, the radio frequency LFEM device 30 further includes a fourth medium and high frequency filter 441, a fourth low frequency filter 541, and a seventh switching module. The fourth middle-high frequency filter 441 is respectively connected to the diversity receiving path and the diversity MIMO receiving path of the middle-high frequency signal of the first system in a one-to-one correspondence manner, and is configured to perform filtering processing on the middle-high frequency signal of the first system. The fourth low frequency filters 541 are connected to the diversity MIMO receiving paths of the low frequency signals of the first format in a one-to-one correspondence manner, and are configured to perform filtering processing on the low frequency signals of the first format. A plurality of first ends of the seventh switching module are respectively connected to the fourth middle-high frequency filters 441 and the fourth low frequency filters 541 in a one-to-one correspondence, and the seventh switching module is configured to select and transmit a signal received by the fourth antenna ANT4 to any one of the connected filters.

Based on the above structure, the radio frequency system of this embodiment can perform transmission, main set reception, main set MIMO reception, diversity reception, and diversity MIMO reception on low, medium, and high frequency signals of the first system and the second system. Referring to fig. 20, the operating principle of the first standard is illustrated by taking the medium-high frequency signal as an N41 frequency band signal as an example.

N41 transmit link:

N41 primary set receiving link:

a signal enters from an ANT1 antenna port, passes through a Path01 Path and reaches a first combiner 610; after being split, the first combiner 610 passes through a Path03 to a first medium-high frequency antenna port ANT3 of the radio frequency PA Mid device 10; the first switching module 210 switches to contact 6, and after filtering by the first middle-high frequency filter, to the 3P3T switch; 3P3T to contact 3, to the SP4T #2 switch; SP4T #2 switches a single port and passes through a low noise amplifier; amplified by a low noise amplifier and switched to 6P 6T; 6P6T to contact 3 to the first output port LNA OUT3 output; the received signal enters the rf transceiver 20 through the SDR PRX4 port.

N41 diversity receive chain:

the signal enters from an ANT2 antenna port, passes through a Path09 Path, and reaches a second combiner 620; after being branched, the second combiner 620 is connected to an ANT4 port of the radio frequency LFEM device 30 through a Path 08; SP8T switches to contact 9, to TRX2 port; through Path06, to the high frequency antenna port MHB ANT of the radio frequency LFEM device 30; SP8T switches to contact 1 to SP3T #3 switch; SP3T #3 is switched to a single port and amplified by a low noise amplifier to a 6P6T switch; 6P6T to contact 1 to the third output port LNA OUT MHB1 output; the received signal enters the rf transceiver 20 through the SDR DRX0 port.

N41 master set MIMO receive chain:

a signal enters from an ANT3 antenna port, passes through a Path10 Path and reaches a third combiner 630; after being split by the third combiner 630, the signals are transmitted to an ANT5 port of the radio frequency PA Mid device 10; SP3T #3 is switched to contact 4, and is filtered by a Filter to be sent to a low noise amplifier; amplified by a low noise amplifier and switched to 6P 6T; 6P6T to contact 6 to the first output port LNA OUT6 output; the received signal enters the rf transceiver 20 through the SDR PRX3 port.

N41 diversity MIMO receive chain:

signals enter from an ANT4 antenna port and pass through a Path15 Path to a DRX MIMO IN port of the radio frequency LFEM device 30; after being branched, the fourth combiner 640 switches to the SP4T #2 switch; the SP4T #2 switches a single port, and is filtered by a Filter to be switched to an SP3T #7 switch; SP3T #7 switches the single port to the low noise amplifier path; amplified by a low noise amplifier and switched to 6P 6T; 6P6T switches to contact 6, to the LNA OUT MHB6 port output; the received signal enters the rf transceiver 20 via the SDR DRXA port.

The embodiment of the application further provides a communication device, and the communication device is provided with the radio frequency system in any embodiment. By arranging the radio frequency system on the communication equipment, the transmission processing of medium and high frequency signals of different systems can be realized. Since the signals processed by the first transmitting module 110 and the second transmitting module 120 are both medium-high frequency signals, the integrated configuration has better compatibility. Moreover, because the medium-high frequency signals of different systems do not need to be transmitted simultaneously, the first switch module 210 is arranged, so that the medium-high frequency signals of different systems can be transmitted in a time-sharing manner through the same first medium-high frequency antenna port ANT3, the number of antenna ports required to be arranged is reduced, the integration level of a radio frequency system is improved, the layout and the wiring can be simplified, and the cost is saved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express a few embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the concept of the embodiments of the present application, and these embodiments are within the scope of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the appended claims.

Claims

1. A radio frequency (PA) Mid device configured with a first input port and a second input port for connection to a radio frequency transceiver, and a first Mid-High Frequency (HF) antenna port for connection to an antenna, the PA Mid device comprising:

the first transmitting module is connected with the first input port and is used for supporting the transmitting processing of the medium-high frequency signals of the first standard from the first input port;

2. The radio frequency PA Mid device according to claim 1, further configured with a first output port for connection to a radio frequency transceiver, the radio frequency PA Mid device further comprising:

a first receiving module, connected to the first output port, configured to support receiving and processing of the medium-high frequency signal of the first standard from the first medium-high frequency antenna port, and transmit the processed signal to the first output port;

the first switch module is further configured to select to transmit the medium-high frequency signal of the first standard from the first medium-high frequency antenna port to the first receiving module.

3. The radio frequency PA Mid device according to claim 2, further configured with a third input port and a fourth input port for connecting the radio frequency transceiver, and a first low frequency antenna port for connecting an antenna, the radio frequency PA Mid device further comprising:

the third transmitting module is connected with the third input port and used for supporting the transmitting processing of the low-frequency signals of the first standard from the third input port;

the fourth transmitting module is connected with the fourth input port and used for supporting the transmitting processing of the low-frequency signals of the second standard from the fourth input port;

and the second switch module comprises a plurality of first ends and a plurality of second ends, part of the first ends of the second switch module are respectively connected with the fourth transmitting module and the third transmitting module in a one-to-one correspondence manner, one second end of the second switch module is connected with the first low-frequency antenna port, and the second switch module is used for selectively conducting a signal transmission path between any one first end and the second end connected with the first low-frequency antenna port.

4. The radio frequency PA Mid device according to claim 3, further configured with a second output port for connecting the radio frequency transceiver, the radio frequency PA Mid device further comprising:

a second receiving module, connected to the second output port, configured to support receiving and processing of the low-frequency signal of the first standard from the first low-frequency antenna port, and transmit the processed signal to the second output port;

and the second switch module is also used for selectively transmitting the low-frequency signals of the first system from the first low-frequency antenna port to the second receiving module.

5. The RF PA Mid device of claim 4, further configured with a first transceiving port for connecting a RF LFEM device;

wherein a first end of the first switch module is connected to the first transceiving port.

6. The radio frequency (PA) Mid device according to claim 5, further configured with a second medium-high frequency antenna port for connecting an antenna;

and the other second end of the first switch module is connected with the second medium-high frequency antenna port.

7. The RF PA Mid device according to claim 4, further configured with a second low frequency antenna port for connecting an antenna, and a diversity receive port for connecting a RF LFEM device, the RF PA Mid device further comprising:

the second switch module comprises a first switch module and a second switch module, the first switch module comprises a first end and a second end, the first ends of the first switch module are respectively connected with the second end of the second switch module and the diversity receiving port in a one-to-one correspondence mode, and the second ends of the first switch module are respectively connected with the first low-frequency antenna port and the second low-frequency antenna port in a one-to-one correspondence mode.

8. The rf PA Mid device according to any one of claims 4 to 7, further configured with an auxiliary antenna port for connecting an antenna, wherein the first receiving module is further configured to support a main-set MIMO receiving process for the medium-high frequency signals of the first standard from the auxiliary antenna port, and the first receiving module further includes a plurality of third medium-high frequency filters, which are respectively disposed on a plurality of main-set MIMO receiving paths for the medium-high frequency signals of the first standard in a one-to-one correspondence manner, and are configured to perform a filtering process for the medium-high frequency signals of the first standard; the radio frequency PA Mid device further comprises:

and a plurality of first ends of the fourth switch module are respectively connected with the plurality of third medium-high frequency filters in a one-to-one correspondence manner, a second end of the fourth switch module is connected with the auxiliary antenna port, and the fourth switch module is used for selectively transmitting the medium-high frequency signals of the first system to any one of the third medium-high frequency filters.

9. The rf PA Mid device according to claim 8, wherein the second receiving module is further configured to support a master MIMO receiving process for the low-frequency signals of the first standard from the auxiliary antenna port, and the second receiving module further includes a third low-frequency filter, which is disposed on a master MIMO receiving path for the low-frequency signals of the first standard and is configured to perform a filtering process for the low-frequency signals of the first standard; the radio frequency PA Mid device further comprises:

and two first ends of the third combiner are respectively connected with the second end of the fourth switch module and the third low-frequency filter in a one-to-one correspondence manner, and the second end of the third combiner is connected with the auxiliary antenna port.

10. The radio frequency PA Mid device according to any of claims 4 to 7, further configured with a first receiving port for connecting an antenna, wherein the second receiving module is further configured to support a dominant set MIMO receiving process for low frequency signals of the first system from the first receiving port, and wherein the second receiving module further comprises:

and the third low-frequency filter is arranged on a main set MIMO receiving path of the low-frequency signals of the first system, is connected with the first receiving port, and is used for filtering the low-frequency signals of the first system.

11. The radio frequency (PA) Mid device according to any one of claims 4 to 7, further configured with an auxiliary antenna port for connecting an antenna;

the first receiving module is further configured to support a main set MIMO receiving process for the medium-high frequency signals of the first standard from the auxiliary antenna port, and the first receiving module further includes a plurality of third medium-high frequency filters, which are respectively disposed on a plurality of main set MIMO receiving paths of the medium-high frequency signals of the first standard in a one-to-one correspondence manner, and are configured to perform a filtering process for the medium-high frequency signals of the first standard;

the second receiving module is further configured to support a dominant set MIMO receiving process on the low-frequency signals of the first format from the auxiliary antenna port, and the second receiving module further includes a third low-frequency filter, which is disposed on a dominant set MIMO receiving path of the low-frequency signals of the first format and is configured to perform a filtering process on the low-frequency signals of the first format;

the radio frequency PA Mid device further comprises:

and a plurality of first ends of the fifth switch module are respectively connected with the plurality of third medium-high frequency filters and the plurality of third low frequency filters in a one-to-one correspondence manner, and a second end of the fifth switch module is connected with the auxiliary antenna port.

12. The radio frequency (PA) Mid device according to any one of claims 2 to 7, further configured with a first auxiliary port for connecting an antenna;

the first receiving module is further connected to the first auxiliary port, and the first receiving module is further configured to support a master set MIMO receiving process on the medium-high frequency signals of the first standard from the first auxiliary port.

13. The RF PA Mid device according to any one of claims 3 to 7, further configured with a first coupling output port for connecting with the RF transceiver, the RF PA Mid device further comprising:

the first coupling module is arranged on a first radio frequency path between the first switch module and the first medium-high frequency antenna port and is used for coupling a radio frequency signal on the first radio frequency path to output a first coupling signal;

the second coupling module is arranged on a second radio frequency path between the second switch module and the first low-frequency antenna port and used for coupling the radio frequency signal on the second radio frequency path to output a second coupling signal;

and two first ends of the sixth switch module are respectively connected with the first coupling module and the second coupling module in a one-to-one correspondence manner, a second end of the sixth switch module is connected with the first coupling output port, and the sixth switch module is used for selectively transmitting the first coupling signal or the second coupling signal to the first coupling output port.

14. The radio frequency PA Mid device according to any of claims 3 to 7, further configured with a first and a second coupled output port 1 for connecting the radio frequency transceiver, the radio frequency PA Mid device further comprising:

the first coupling module is arranged on a first radio frequency path between the first switch module and the first medium-high frequency antenna port and is used for coupling a radio frequency signal on the first radio frequency path to output a first coupling signal through the first coupling output port;

and the second coupling module is arranged on a second radio frequency path between the second switch module and the first low-frequency antenna port and used for coupling the radio frequency signal on the second radio frequency path to output a second coupling signal through the second coupling output port.

15. A radio frequency system, comprising: a radio frequency transceiver and a radio frequency PA Mid device as claimed in any of claims 1 to 14; wherein,

16. The rf system of claim 15, wherein when the rf PA Mid device includes a third transmit module and a fourth transmit module and is configured with a third input port, a fourth input port, and a first low frequency antenna port, the rf transceiver is connected to the third input port and the fourth input port of the rf PA Mid device, respectively, the rf system further comprising:

and two first ends of the first combiner are respectively connected with the first low-frequency antenna port and the first medium-high frequency antenna port in a one-to-one correspondence manner, and a second end of the first combiner is connected with the first antenna.

17. The rf system according to claim 15, wherein when the rf PA Mid device includes a second receiving module, the rf PA Mid device is further configured with a second transceiving port, a low frequency transmitting port and a second auxiliary port, the second receiving module is connected to the second auxiliary port, the second receiving module is further configured to support a master MIMO receiving process for the low frequency signals of the first format from the second auxiliary port, the rf system further includes:

and two first ends of the first low-frequency filter are respectively connected with the low-frequency transmitting port and the second auxiliary port in a one-to-one correspondence manner, a second end of the first low-frequency filter is connected with the second transceiving port, and the first low-frequency filter is used for filtering the low-frequency signals of the first system.

18. The radio frequency system according to claim 15, wherein when the radio frequency PA Mid device is configured with an auxiliary antenna port, the auxiliary antenna port is connected with a third antenna.

19. The radio frequency system according to claim 15, wherein when the radio frequency PA Mid device is further configured with a first receive port and an auxiliary antenna port, the radio frequency system further comprises:

and two first ends of the third combiner are respectively connected with the auxiliary antenna port and the first receiving port in a one-to-one correspondence manner, and a second end of the third combiner is connected with a third antenna.

20. The radio frequency system according to claim 15, wherein when the radio frequency PA Mid device is configured with a diversity receive port, a first transceive port, a second low frequency antenna port, and a second medium-high frequency antenna port, the radio frequency system further comprises:

a radio frequency LFEM device configured with a third output port and a fourth output port for connecting the radio frequency transceiver, and a third low frequency antenna port and a fourth medium-high frequency antenna port for connecting the radio frequency PA Mid device, the third low frequency antenna port being connected with the first transceiving port of the radio frequency PA Mid device, the fourth medium-high frequency antenna port being connected with the diversity receiving port of the radio frequency PA Mid device, the radio frequency LFEM device including a third receiving module and a fourth receiving module, the third receiving module being configured to support diversity receiving processing of medium-high frequency signals of the first format from the fourth medium-high frequency antenna port, the fourth receiving module being configured to support diversity receiving processing of low-frequency signals of the first format from the third low frequency antenna port;

and two first ends of the second combiner are respectively connected with the second low-frequency antenna port and the second medium-high frequency antenna port in a one-to-one correspondence manner, and a second end of the second combiner is connected with the second antenna.

21. The radio frequency system of claim 15, further comprising:

a radio frequency LFEM device configured with a third output port and a fourth output port for connecting the radio frequency transceiver, and a third low-frequency antenna port and a fourth medium-high frequency antenna port for connecting a second antenna, the radio frequency LFEM device including a third receiving module and a fourth receiving module, the third receiving module being configured to support diversity reception processing of the medium-high frequency signals of the first system from the fourth medium-high frequency antenna port, and the fourth receiving module being configured to support diversity reception processing of the low-frequency signals of the first system from the third low-frequency antenna port;

and two first ends of the second combiner are respectively connected with the third low-frequency antenna port and the fourth medium-high frequency antenna port in a one-to-one correspondence manner, and a second end of the second combiner is connected with a second antenna.

22. The rf system according to claim 20 or 21, wherein the rf LFEM device is further configured with a fifth medium-high frequency antenna port for connecting a fourth antenna, the third receiving module is further configured to support diversity MIMO receiving processing of the medium-high frequency signals of the first standard from the fifth medium-high frequency antenna port, the rf LFEM device further comprises:

and two first ends of the fourth combiner are respectively connected with the third receiving module and the fourth receiving module in a one-to-one correspondence manner, and a second end of the fourth combiner is connected with the fifth medium-high frequency antenna port.

23. The rf system according to claim 20 or 21, wherein the rf LFEM device is further configured with a fifth middle-high frequency antenna port and a fourth low frequency antenna port for connecting a fourth antenna, the third receiving module is further configured to support diversity MIMO receiving processing of middle-high frequency signals of the first system from the fifth middle-high frequency antenna port, the fourth receiving module is further configured to support diversity MIMO receiving processing of low frequency signals of the first system from the fourth low frequency antenna port, the rf system further comprises:

and two first ends of the fourth combiner are respectively connected with the fifth medium-high frequency antenna port and the fourth low-frequency antenna port in a one-to-one correspondence manner, and a second end of the fourth combiner is connected with the fourth antenna.

24. The radio frequency system of claim 22, further comprising:

the fourth medium-high frequency filter is arranged on a signal transmission path between the fourth combiner and the third receiving module and is used for filtering the medium-high frequency signals of the first standard;

and the fourth low-frequency filter is arranged on a signal transmission path between the fourth combiner and the fourth receiving module and is used for filtering the low-frequency signals of the first system.

25. The rf system according to claim 20 or 21, wherein the rf LFEM device is further configured with a fifth medium-high frequency antenna port for connecting a fourth antenna;

the third receiving module is further configured to support diversity MIMO receiving processing of the medium-high frequency signal of the first standard from the fifth medium-high frequency antenna port, and the third receiving module further includes a fourth medium-high frequency filter, which is arranged on a diversity MIMO receiving path of the medium-high frequency signal of the first standard and is configured to perform filtering processing on the medium-high frequency signal of the first standard;

the fourth receiving module is further configured to support diversity MIMO receiving processing of the low-frequency signal of the first standard from the fifth medium-high frequency antenna port, and the fourth receiving module further includes a fourth low-frequency filter, which is disposed on a diversity MIMO receiving path of the low-frequency signal of the first standard and is configured to perform filtering processing on the low-frequency signal of the first standard;

the radio frequency LFEM device further comprises:

and a plurality of first ends of the seventh switch module are respectively connected with the plurality of fourth medium-high frequency filters and the plurality of fourth low frequency filters in a one-to-one correspondence manner, and the seventh switch module is configured to select and transmit a signal received by the fourth antenna to any one of the connected filters.

26. A communication device comprising a radio frequency system according to any one of claims 15 to 25.