CN109216877B - Electronic device - Google Patents
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- CN109216877B CN109216877B CN201811162757.5A CN201811162757A CN109216877B CN 109216877 B CN109216877 B CN 109216877B CN 201811162757 A CN201811162757 A CN 201811162757A CN 109216877 B CN109216877 B CN 109216877B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The embodiment of the invention discloses electronic equipment, which comprises a first antenna, a second antenna and a short-distance wireless communication matching circuit, wherein the first antenna is connected with the second antenna through a first antenna; the working frequency band of the first antenna comprises a first frequency band and a second frequency band, and the first antenna is provided with a first feed point; the working frequency band of the second antenna comprises a third frequency band and a fourth frequency, and the second antenna is provided with a second feed point; wherein the second frequency band is the same as the fourth frequency band; and the matching circuit receives/transmits the signal of the second frequency band through the first feed point and receives/transmits the signal of the fourth frequency band through the second feed point. Another electronic device is also disclosed.
Description
Technical Field
The invention relates to a communication technology, in particular to electronic equipment.
Background
Currently, many electronic devices such as mobile phones and personal computers can be equipped with various types of antennas to transmit and receive corresponding signals. For example, a mobile phone realizes transceiving of 2G, 3G and/or 4G signals through a built-in diversity antenna; the GPS antenna is used for realizing the receiving and sending of GPS signals; and the WiFi antenna is used for realizing the transceiving of WiFi signals. In addition to the above-mentioned various types of signals, the mobile phone can also implement near field communication such as NFC (near field communication transmission), Zigbee (Zigbee protocol), bluetooth (bluetooth). Each time one type of near field communication is implemented, a corresponding type of antenna needs to be physically disposed. The excessive antenna design undoubtedly increases the occupation of the mobile phone space, and is not favorable for the development of lightness and thinness. If other types of antennas are realized by using the existing type of antennas of the mobile phone, the technical problem to be solved urgently is solved.
Disclosure of Invention
In order to solve the existing technical problems, embodiments of the present invention provide an electronic device and another electronic device.
The technical scheme of the embodiment of the invention is realized as follows:
an embodiment of the present invention provides an electronic device, including:
the antenna comprises a first antenna, a second antenna and a third antenna, wherein the working frequency band of the first antenna comprises a first frequency band and a second frequency band, and the first antenna is provided with a first feed point;
the working frequency band of the second antenna comprises a third frequency band and a fourth frequency band, and the second antenna is provided with a second feed point; wherein the second frequency band is the same as the fourth frequency band;
and the short-distance wireless communication matching circuit receives/transmits the signal of the second frequency band through the first feed point and receives/transmits the signal of the fourth frequency band through the second feed point.
In the above solution, the first end of the first radiator of the first antenna is grounded through a first inductor, wherein the first feed point, the first grounding point of the first antenna, and a portion of the first radiator from the first feed point to the first grounding point of the first antenna form a first-type antenna;
a first end of a second radiator of the second antenna is grounded through a second inductor, wherein the second feed point, a second grounding point of the second antenna, and a portion of the second radiator from the second feed point to the second grounding point of the second antenna form a third form of antenna; the first form and the third form are the same.
In the above-described aspect, if the short-range wireless communication matching circuit receives/transmits the signal of the second frequency band through the first feed point and receives/transmits the signal of the fourth frequency band through the second feed point, the first antenna serves as the antenna of the first form and the second antenna serves as the antenna of the third form.
In the above solution, if the first antenna is used as the second form antenna, the first antenna as the second form antenna can transmit/receive the signal of the first frequency band;
if the second antenna is used as the antenna of the fourth form, the second antenna, which is the antenna of the fourth form, can transmit/receive the signal of the third frequency band.
In the above solution, the electronic device further includes:
the first matching circuit corresponding to the first frequency band is connected to the first feed point of the first antenna through a first capacitor; the first capacitor is used for isolating the signal of the second frequency band;
the second matching circuit corresponding to the third frequency band is connected to the second feed point of the second antenna through a second capacitor; the second capacitor is used for isolating the signal of the fourth frequency band.
In the above solution, the short-range wireless communication matching circuit is connected to the first feed point of the first antenna through a third inductor, and a path from the short-range wireless communication matching circuit to the third inductor is grounded through a third capacitor; the third inductor and the third capacitor are at least used for eliminating the influence of the signal of the second frequency band on the operation of the first antenna in the first frequency band;
the close-range wireless communication matching circuit is connected to the second feed point of the second antenna through a fourth inductor, and a path from the close-range wireless communication matching circuit to the fourth inductor is grounded through a fourth capacitor; the fourth inductor and the fourth capacitor are at least used for eliminating the influence of the signal of the fourth frequency band on the operation of the second antenna in the third frequency band.
In the above solution, the first antenna supports the first frequency band and the second frequency band at the same time; the second antenna supports both the third frequency band and the fourth frequency band.
In the above scheme, the radiator of the first antenna and the radiator of the second antenna are the top or the bottom of the metal frame of the electronic device.
In the foregoing solution, the length of the first form of antenna formed on the radiator of the first antenna and the length of the third form of antenna formed on the radiator of the second antenna jointly form the length of the top or the bottom of the metal frame.
An embodiment of the present invention further provides an electronic device, where the electronic device includes:
a first antenna for transmitting signals of a first frequency band and a second frequency band; wherein the first antenna has a first feed point;
a second antenna for transmitting signals of a third frequency band and a fourth frequency band; wherein the second antenna has a second feed point;
the filter circuit is used for determining signals of a second frequency band and a fourth frequency band;
and the matching circuit is used for receiving/transmitting the signal of the second frequency band through the first feed point and receiving/transmitting the signal of the fourth frequency band through the second feed point.
In the embodiment of the invention, the electronic equipment comprises a first antenna, a second antenna and a short-distance wireless communication matching circuit; the working frequency band of the first antenna comprises a first frequency band and a second frequency band, and the first antenna is provided with a first feed point; the working frequency band of the second antenna comprises a third frequency band and a fourth frequency band, and the second antenna is provided with a second feed point; wherein the second frequency band is the same as the fourth frequency band; and the short-distance wireless communication matching circuit receives/transmits the signal of the second frequency band through the first feed point and receives/transmits the signal of the fourth frequency band through the second feed point.
In the above scheme, the transmission of the short-range wireless communication signal is realized by multiplexing at least two antennas that are not capable of realizing the short-range wireless communication originally in the electronic device. Therefore, in physical terms, the electronic equipment does not need to be additionally provided with a near field communication antenna, and the occupation of space can be greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a first schematic structural diagram of an electronic device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second exemplary embodiment of an electronic device;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the present application, the embodiments and features of the embodiments may be arbitrarily combined with each other without conflict. The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
It should be understood by those skilled in the art that the electronic device involved in the following embodiments of the present application may be any electronic device having an antenna, such as: industrial control computers, personal computers and the like, all types of computers, all-in-one computers, notebook computers, tablet computers, mobile phones, electronic readers and the like, and also can be wearable devices such as intelligent glasses, intelligent watches, intelligent shoes and the like. The preferred electronic device in the embodiment of the present application is a mobile phone.
It can be understood that: the electronic device in the embodiment of the present application should include at least two types of antennas, and the operating frequency bands of the two types of antennas are at least partially different. The at least two types of antennas refer to antennas whose operating frequency bands do not enable transmission of short-range wireless communication signals. The two types of antennas are referred to as diversity antennas and auxiliary antennas. Considering that in practical applications, the electronic device has both a requirement for transmitting at least one of 2 nd to 5 th generation mobile communication signals (2G to 5G signals) and a requirement for using Global Positioning System (GPS), wireless fidelity (WiFi), the present solution regards antennas capable of transmitting 2G to 5G signals as the same type of antenna, and such the same type of antenna may be referred to as a diversity antenna. An antenna capable of transmitting GPS signals, or WiFi signals, is considered to be another antenna of the same type, which may be referred to as an auxiliary antenna. The near field communication signal includes, but is not limited to: NFC signals, Zigbee signals, bluetooth signals.
In an embodiment of the electronic device provided in the present application, as shown in fig. 1, the electronic device includes: a first antenna 11, a second antenna 12, and a short-range wireless communication matching circuit 13 (simply referred to as matching circuit 13). Wherein the first antenna 11 and the second antenna 12 are one of at least two types of antennas, preferably two types of antennas, which the electronic device itself has. It can be understood that: the first antenna 11 is a diversity antenna, and may specifically be an antenna for transmitting 5G signals (5G antenna), an antenna for transmitting 4G signals (4G antenna), an antenna for transmitting 3G signals (3G antenna), or an antenna for transmitting 2G signals (2G antenna). The second antenna 12 is an auxiliary antenna, and may be specifically an antenna for transmitting GPS signals (GPS antenna) or an antenna for transmitting WiFi signals (WiFi antenna). Of course, the first antenna 11 may also be an auxiliary antenna, and the second antenna 12 may also be a diversity antenna, which is not limited in this document.
In the embodiment of the application, the at least two types of antennas of the electronic equipment are utilized to realize the transmission of the short-distance wireless communication signals. That is, according to the present invention, at least two types of antennas that are not capable of performing near field communication originally in an electronic device are used, and transmission of a near field communication signal is also performed by multiplexing the at least two antennas while the at least two antennas perform their own functions (each type of antenna performs signal transmission using its own operating frequency band). So, in physics, alright need not to additionally set up NFC antenna, Zigbee antenna and/or bluetooth antenna for electronic equipment, but significantly reduced leads to the problem greatly occupied to the space owing to additionally set up close range wireless communication antenna, and the frivolity development of usable cell-phone at least.
In the present embodiment, the first antenna 11 and the second antenna 12 are both antenna coils, and signal transmission is performed by using a radiator portion of the antenna coils. In the scheme, the antenna coil of the first antenna 11 can be used for transmitting diversity signals (2G-5G signals) and short-range wireless communication signals (target signals). Likewise, the antenna coil of the second antenna 12 can be used to transmit both auxiliary signals (GPS signals or WiFi signals) and target signals.
The first antenna 11 and the second antenna 12 each have a feed point, each have a certain operating frequency band (inherent operating frequency band), and the inherent type signals (diversity signals and auxiliary signals) are transmitted by using the respective inherent operating frequency bands. The working frequency band of the first antenna 11 required in the embodiment of the present application includes a first frequency band and a second frequency band; wherein, the first frequency band is a working frequency band used when the first antenna 11 is used as a diversity antenna to transmit diversity signals; the second frequency band is an operating frequency band used when the first antenna 11 is used as a diversity antenna to enable near field communication signals. It can be understood that the short-range wireless communication signal can only be received and transmitted through the short-range wireless communication frequency band, and thus, the second frequency band is the short-range wireless communication frequency band, such as the NFC frequency band.
In this embodiment, the working frequency band of the second antenna 12 includes a third frequency band and a fourth frequency band; the third frequency band is a working frequency band used when the second antenna 1 is used as an auxiliary antenna to transmit auxiliary signals; the fourth frequency band is an operating frequency band used when the second antenna 12 is used as an auxiliary antenna to enable near field communication signals. It can be understood that the short-range wireless communication signal can only be received and transmitted through the short-range wireless communication frequency band, and thus, the fourth frequency band is the short-range wireless communication frequency band, such as the NFC frequency band. As can be seen, the second frequency band and the fourth frequency band both refer to the short-range wireless communication frequency band and are the same frequency band.
The matching circuit 13 in this embodiment of the application can at least receive/transmit the signal of the second frequency band through the first feed point of the first antenna 11 and receive/transmit the signal of the fourth frequency band through the second feed point of the second antenna 12. That is, the matching circuit 13 realizes the transceiving of the short-range wireless communication signal through the respective feed points of the first antenna 11 and the second antenna 12, and further realizes the transmission of the target signal by using the existing two antennas, and the transmission of the short-range communication signal can be realized without additionally arranging the short-range wireless communication antenna, so that the space of the mobile phone can be greatly saved, and the development of the lightness and thinness of the mobile phone is facilitated.
From the perspective of the type of signal that can be transmitted, the first antenna 11 (which can implement diversity signal transmission and also can implement transmission of a target signal) may be an antenna of the second form, and the first antenna 11 as an antenna of the second form can implement transmission of a diversity signal, that is, implement transceiving of a first frequency band signal; the first antenna 11 as the first form antenna can realize transmission of a target signal, that is, transceiving of a second frequency band signal. The second antenna 12 (which can implement auxiliary signal transmission and also can implement target signal transmission) may be an antenna of a fourth form, and the second antenna 12 as the antenna of the fourth form can implement auxiliary signal transmission, that is, implement transceiving of a third frequency band signal; the second antenna 12 as the third form of antenna can realize transmission of the target signal, that is, transceiving of the fourth frequency band signal. The first antenna 11 and the second antenna 12 may be any type of antenna, such as a monopole antenna, an inverted F antenna, a planar inverted F antenna (PIFA antenna), or a Loop antenna (Loop antenna), regardless of the type of antenna used for signal transmission. It will be understood that the antenna types may be the same or different for the same antenna (antenna coil) in different antenna formats. For example, the first antenna 11 is a monopole antenna when used for the second form of antenna, and is a Loop antenna when used for the first form of antenna.
The first antenna 11 as the second form antenna can realize that transmission of a diversity signal (signal of the first frequency band) is an existing transmission function of the diversity antenna; the second antenna 12 as the fourth type antenna can realize transmission of the auxiliary signal (signal of the third frequency band) as well as the existing transmission function of the auxiliary antenna. In the embodiment of the present application, in order to achieve transmission of both diversity signals and auxiliary signals by using the first antenna 11 and the second antenna 12, transceiving of target signals can be achieved by using the first antenna 11 and the second antenna 12. Some improvements need to be made to the existing circuit structures of the first antenna 11 and the second antenna 12, so that the first antenna 11 can be used as an antenna in the first form, and the second antenna 12 can be used as an antenna in the third form, thereby realizing transmission of a target signal.
The scheme mainly explains how to realize the transmission of target signals such as NFC signals based on the diversity antenna and the auxiliary antenna, and how to explain the processes of receiving and transmitting signals of types which can support transmission by the diversity antenna and the auxiliary antenna and how to realize the receiving and transmitting of the NFC signals by the two antennas without mutual influence. The diversity antenna, which type of antenna the auxiliary antenna is used for, and how to implement transceiving of the diversity signal and transceiving of the auxiliary signal by using the corresponding type of antenna are not described in detail. If necessary, please refer to the related description.
The process of implementing the transmission of a target signal, such as an NFC signal, based on a diversity antenna and an auxiliary antenna is:
in fig. 2, the first antenna 11 is taken as a diversity antenna (4G antenna), the second antenna 12 is taken as an auxiliary antenna (GPS antenna), and the matching circuit 13 is taken as an NFC matching circuit.
As shown in the circuit diagram of fig. 2, the diversity antenna is disposed on the metal frame of the electronic device, and the diversity antenna as a second form antenna can implement transmission of diversity signals, and the second form antenna is a monopole antenna, which is an original type of diversity antenna and is shown in the thickest line portion of fig. 2. The third form of the auxiliary antenna is obtained by: the first end (position 1) of the first radiator (located on top of the metal bezel) of the diversity antenna is connected to one end of the inductor L2 (first inductor), and the other end of the inductor L2 is grounded (GND 1). The first feed point (feed point K1), GND 1 and the portion of the first radiator from the feed point K1 to GND 1 form the antenna of the first form. The diversity antenna as a first form of antenna enables transmission of NFC signals.
The auxiliary antenna is arranged at the upper right corner of the top of the metal frame of the electronic device, the auxiliary antenna serving as the fourth antenna can transmit auxiliary signals, and the fourth antenna is a monopole antenna which is an original type of the auxiliary antenna and is shown by a secondary thick line part in fig. 2. The second form of the diversity antenna is obtained by: the first end of the radiator of the auxiliary antenna (position 2) is connected to one end of an inductor L4 (second inductor), and the other end of the inductor L4 is grounded (GND 2). The second feed point (feed point K2), GND2 and the portion of the first radiator from the feed point K2 to GND2 form an antenna of the third form. The auxiliary antenna as the third form of antenna enables transmission of NFC signals.
When the NFC matching circuit 13 receives/transmits an NFC signal through the first feed point and receives/transmits an NFC signal through the second feed point, it is necessary that the diversity antenna be the antenna of the first form and the auxiliary antenna be the antenna of the third form. In the foregoing solution, the inductor L2 and the inductor L4 may be regarded as open circuits, and then, from the feed point K1 to GND 1 and from the feed point K2 to GND2, the first form antenna and the third form antenna are both Loop antennas, which are Loop antennas, and are antennas of the same type.
In a specific implementation, the natural operating frequency band (first frequency band) of the diversity antenna is typically 600MHZ (megahertz) -2700MHZ (diversity receiving antenna for communication systems 2G, 3G, 4G), and the natural operating frequency band (third frequency band) of the GPS auxiliary antenna: 1575.42MHz, the natural operating frequency band of the WIFI antenna is 2400MHz to 2483.5MHz, and the operating frequency band of NFC is 13.56MHz (the second frequency band and the fourth frequency band), it can be seen that the natural frequency bands of the diversity antenna and the auxiliary antenna are significantly higher than the operating frequency band of NFC. Considering that the inductor has the characteristic of isolating high-frequency and low-frequency, the inductor L2 can isolate the high-frequency part in the diversity antenna, leaving the low-frequency part, thereby obtaining the diversity antenna (the diversity antenna is the antenna of the first form) capable of realizing NFC signals. The inductance L4 can isolate a high-frequency portion in the auxiliary antenna, leaving a low-frequency portion, thereby obtaining an auxiliary antenna (the auxiliary antenna is an antenna of the third form) that can realize NFC signal transmission. Therefore, the embodiment of the application realizes the transceiving of the NFC signal by using the existing auxiliary antenna and the diversity antenna. And an NFC antenna is not required to be additionally arranged, so that the development of light and thin property of the mobile phone is facilitated.
The following is a description of a procedure and/or reasons why the existing two antennas, i.e., the diversity antenna and the auxiliary antenna, transmit and receive signals of a type that can support transmission by themselves, and how the existing two antennas transmit and receive NFC signals do not affect each other.
The diversity circuit in fig. 2 is a first matching circuit corresponding to the inherent operating frequency band (first frequency band) of the diversity antenna, a first capacitor (capacitor C2) is connected to the output end of the diversity circuit, and the other end of the capacitor C2 is connected to the feed point 1; the capacitor C2 is used to isolate NFC signals in the diversity antenna, i.e., isolate signals in the second frequency band.
In fig. 2, the auxiliary circuit is a second matching circuit corresponding to the inherent operating frequency band (third frequency band) of the auxiliary antenna, a second capacitor (capacitor C4) is connected to the output end of the auxiliary circuit, and the other end of the capacitor C4 is connected to the feed point 2; the capacitor C4 is used to isolate the NFC signal in the auxiliary antenna, i.e., isolate the signal in the fourth frequency band, and may implement the original function.
In the above scheme, considering that the capacitor has a characteristic of isolating low-frequency and high-frequency signals, the capacitor C2 can isolate the low-frequency part in the diversity antenna, that is, isolate the NFC signal in the diversity antenna, and further transmit the remaining high-frequency part, i.e., the diversity signal, where the diversity antenna is used as the second type antenna, so as to implement transmission of the diversity signal. Similarly, the capacitor C4 can isolate the low frequency part of the auxiliary antenna, i.e., isolate the NFC signal of the auxiliary antenna, and further transmit the remaining high frequency part, i.e., the auxiliary signal, and the auxiliary antenna at this time is an antenna of the fourth form, which can implement transmission of the auxiliary signal.
As can be seen, by setting the capacitors C2 and C4, the NFC signals in the diversity antenna and the auxiliary antenna can be filtered, so that the normal transmission of the second form of diversity antenna and the fourth form of auxiliary antenna to the natural frequency band signal is ensured, and the influence of the transmission of the first form of diversity antenna to the NFC signal on the transmission of the second form of diversity antenna is eliminated; and canceling an effect of the transmission of the NFC signal by the auxiliary antenna as the third form on the transmission of the auxiliary signal by the auxiliary antenna of the fourth form.
Further, in the above-mentioned case,
in fig. 3, the NFC matching circuit 13 may be connected to the feed point K1 through a third inductor (inductor L1), and the path from the NFC matching circuit 13 to the inductor L1 is grounded through a third capacitor (capacitor C1); the inductor L1 and the capacitor C1 are at least used for eliminating the influence of the signal of the second frequency band on the operation of the first antenna in the first frequency band; further, the inductor L1 and the capacitor C1 are used to eliminate the mutual influence of the diversity antenna as the first form antenna for transmitting the NFC signal and the diversity antenna as the second form antenna for transmitting the diversity signal.
The NFC matching circuit 13 is connected to the feed point K2 through a fourth inductor (inductor L3), and a path from the NFC matching circuit 13 to the inductor L3 is grounded through a fourth capacitor (capacitor C3); the inductor L3 and the capacitor C3 are at least used for eliminating the influence of the signal of the fourth frequency band on the operation of the second antenna in the third frequency band; further, the inductor L3 and the capacitor C3 are used to eliminate mutual influence caused by the auxiliary antenna as the third-form antenna for transmitting the NFC signal and the auxiliary antenna as the fourth-form antenna for transmitting the auxiliary signal.
The aforementioned combination of the inductor L1 and the capacitor C1 can be regarded as a filter circuit. The aforementioned combination of the inductor L3 and the capacitor C3 can be regarded as a filter circuit. The capacitor has the characteristic of isolating low-frequency and high-frequency, the inductor has the characteristic of isolating high-frequency and low-frequency, and the inductor L1 can eliminate the influence of the transmission of the diversity antenna in the form of the second antenna on the transmission of the NFC signals by the diversity antenna in the form of the first antenna; the inductance L3 may eliminate the effect of the transmission of the auxiliary signal by the auxiliary antenna in the form of the fourth antenna on the transmission of the NFC signal by the auxiliary antenna in the form of the third antenna. The capacitor C1 may eliminate the effect of the diversity antenna in the form of a first antenna on the transmission of NFC signals on the transmission of diversity signals in the form of a second antenna; the capacitor C3 may eliminate the effect of the auxiliary antenna in the form of a third antenna on the transmission of NFC signals on the transmission of auxiliary signals by the auxiliary antenna in the form of a fourth antenna. In addition, the filter circuit can also achieve the purpose of optimizing the NFC matching circuit, so that the NFC matching circuit can better assist the diversity antenna and the auxiliary antenna to achieve transmission of NFC signals.
As will be understood by those skilled in the art, the NFC matching circuit as a matching circuit for transmitting signals in proximity wireless communication can achieve the above functions and simultaneously achieve the processes of reducing the resonance and standing wave signals of the antenna so as to reduce the radiation loss of the antenna and adjusting the frequency band input by the filter to 13.56MHz, so as to better radiate the NFC signals outwards. Meanwhile, in order to effectively suppress the problem of coupling interference of the receiving and transmitting of the NFC signal to the auxiliary antenna, a shielding layer may be wrapped outside the NFC matching circuit and the power supply circuit thereof, and the shielding layer may be any object capable of achieving a shielding function, such as a shielding cover or a shielding film.
In the above scheme, the existing two antennas of the electronic device, such as the 4G antenna and the GPS antenna, are used for transmitting the NFC signal, and compared with a method for transmitting the NFC signal by using a single existing antenna, the area of the antenna used for transmitting the NFC signal can be increased by using the two antennas, and the increased area of the antenna can bring a beneficial effect of stronger radiation capability on the NFC signal.
In an optional aspect of the present invention, at the same time, the first antenna may support the first frequency band and the second frequency band simultaneously; the second antenna may support the third frequency band and the fourth frequency band simultaneously.
It can be understood that the diversity antenna and the auxiliary antenna in the embodiments of the present application may only transmit and receive as one of the two antenna types, or may transmit and receive signals as two antenna types at the same time. In the latter case, at the same time, the first antenna can be used for realizing both the transceiving of diversity signals and the transceiving of NFC signals; in this case, the first antenna serves as an antenna of two types, and the second antenna realizes transmission and reception of diversity signals and also realizes transmission and reception of NFC signals as an antenna of the first type. Similarly, at the same time, the second antenna can realize the transceiving of the auxiliary signal and the NFC signal; in this case, the second antenna is an antenna of two types, the fourth type realizes transmission and reception of the auxiliary signal, and the third type realizes transmission and reception of the NFC signal.
In an optional embodiment of the present invention, the radiator of the first antenna and the radiator of the second antenna are the top or the bottom of the metal bezel of the electronic device. The radiator itself is the metal of the metal frame and is the top or bottom metal of the metal frame. Considering that the top or bottom position of the metal frame is easy for a user to realize NFC operation, such as card swiping operation of NFC, the antenna is designed at the position of the mobile phone, so that the user can conveniently hold the mobile phone, and the user can only hold the lower half part (the radiator is arranged at the top) or the upper half part (the radiator is arranged at the bottom) of the upper mobile phone to perform the card swiping operation of NFC. Meanwhile, in order to save the space occupation of the antenna on the mobile phone, in the design of the antenna, the radiator of the antenna is the metal frame of the mobile phone, specifically the top or the bottom of the metal frame, so that the space occupation of the antenna can be reduced. If the shape of the mobile phone is rectangular, the radiators of the auxiliary antenna and the diversity antenna are short sides of the rectangular shape, and certainly, the radiators can also be long sides of the rectangular shape, which is not particularly limited. The top or bottom of the metal frame can be regarded as two short sides of the rectangular mobile phone.
In the design length of the antenna, the total length of the radiator of the auxiliary antenna and the diversity antenna may be equal to the partial length of the short side/long side, or may be equal to the length of the entire short side/long side. Preferably, the length of the first type antenna formed on the radiator of the first antenna and the length of the third type antenna formed on the radiator of the second antenna together form the length of the top or the bottom of the metal frame. I.e. the sum of the length of the radiator of the diversity antenna for the first form of antenna and the length of the radiator of the auxiliary antenna for the second form of antenna is equal to the length of the short side or the length of the long side of the rectangle. The radiating length of a radiator used for realizing the NFC signal in the diversity antenna and the auxiliary antenna is ensured to be long enough as far as possible, and the better radiation of the NFC signal is realized.
The present application also provides another electronic device, as shown in fig. 3, the electronic device includes: a first antenna 31, a second antenna 32, a filter circuit 33, and a matching circuit 34;
a first antenna 31 for transmitting signals of a first frequency band and a second frequency band; wherein the first antenna has a first feed point;
a second antenna 32 for transmitting signals of a third frequency band and a fourth frequency band; wherein the second antenna has a second feed point;
a filter circuit 33 for determining signals of the second frequency band and the fourth frequency band;
a matching circuit 34, configured to receive/transmit the signal of the second frequency band through the first feed point, and receive/transmit the signal of the fourth frequency band through the second feed point.
For the functions of the first antenna 31, the second antenna 32 and the matching circuit 34, reference is made to the foregoing description of the first antenna 11, the second antenna 12 and the matching circuit 13. The filter circuit 33 can refer to the aforementioned description of the filter circuit composed of the inductor L1 and the capacitor C1 or the filter circuit composed of the inductor L3 and the capacitor C3. The repetition is not described in detail.
Embodiments of the present application implement NFC antennas based on two antennas on an electronic device. That is, the two antennas should support both their own natural frequency bands and the frequency band of the NFC antenna. In the use scene of the electronic equipment in NFC, the two antennas support the frequency band of NFC in the form of Loop antennas. Thereby enabling the electronic device to use the functionality of NFC. The radiators of the two antennas are part of metal of the metal frame of the electronic device and are located at the top of the metal frame, so that the antenna is more suitable for an NFC interaction scene, namely, a shield without gesture holding.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. An electronic device, the electronic device comprising:
the antenna comprises a first antenna, a second antenna and a third antenna, wherein the working frequency band of the first antenna comprises a first frequency band and a second frequency band, and the first antenna is provided with a first feed point;
the working frequency band of the second antenna comprises a third frequency band and a fourth frequency band, and the second antenna is provided with a second feed point; wherein the second frequency band is the same as the fourth frequency band;
the short-distance wireless communication matching circuit receives/transmits the signal of the second frequency band through the first feed point and receives/transmits the signal of the fourth frequency band through the second feed point;
a first end of a first radiator of the first antenna is grounded through a first inductor, wherein the first feed point, a first grounding point of the first antenna, and a portion of the first radiator from the first feed point to the first grounding point of the first antenna form a first-form antenna;
a first end of a second radiator of the second antenna is grounded through a second inductor, wherein the second feed point, a second grounding point of the second antenna, and a portion of the second radiator from the second feed point to the second grounding point of the second antenna form a third form of antenna; the first form and the third form are the same.
2. The electronic device according to claim 1, wherein if the short-range wireless communication matching circuit receives/transmits the signal of the second frequency band through the first feed point and the signal of the fourth frequency band through the second feed point, the first antenna functions as the antenna of the first form and the second antenna functions as the antenna of the third form.
3. The electronic device according to claim 2, wherein if the first antenna is used as the second form antenna, the first antenna as the second form antenna can transmit/receive the signal of the first frequency band;
if the second antenna is used as the antenna of the fourth form, the second antenna, which is the antenna of the fourth form, can transmit/receive the signal of the third frequency band.
4. The electronic device of claim 3, further comprising:
the first matching circuit corresponding to the first frequency band is connected to the first feed point of the first antenna through a first capacitor; the first capacitor is used for isolating the signal of the second frequency band;
the second matching circuit corresponding to the third frequency band is connected to the second feed point of the second antenna through a second capacitor; the second capacitor is used for isolating the signal of the fourth frequency band.
5. The electronic device of claim 4, wherein the close-range wireless communication matching circuit is connected to the first feed point of the first antenna through a third inductor, and the close-range wireless communication matching circuit is connected to the third inductor through a third capacitor and grounded; the third inductor and the third capacitor are at least used for eliminating the influence of the signal of the second frequency band on the operation of the first antenna in the first frequency band;
the close-range wireless communication matching circuit is connected to the second feed point of the second antenna through a fourth inductor, and a path from the close-range wireless communication matching circuit to the fourth inductor is grounded through a fourth capacitor; the fourth inductor and the fourth capacitor are at least used for eliminating the influence of the signal of the fourth frequency band on the operation of the second antenna in the third frequency band.
6. The electronic device of claim 5, wherein the first antenna supports both the first frequency band and the second frequency band; the second antenna supports both the third frequency band and the fourth frequency band.
7. The electronic device of claim 1, wherein the radiator of the first antenna and the radiator of the second antenna are a top portion or a bottom portion of a metal bezel of the electronic device.
8. The electronic device of claim 7, wherein a length of the first form of the antenna formed on the radiator of the first antenna and a length of the third form of the antenna formed on the radiator of the second antenna together form a length of a top or a bottom of the metal bezel.
9. An electronic device, the electronic device comprising:
a first antenna for transmitting signals of a first frequency band and a second frequency band; wherein the first antenna has a first feed point;
a second antenna for transmitting signals of a third frequency band and a fourth frequency band; wherein the second antenna has a second feed point;
the filter circuit is used for determining signals of a second frequency band and a fourth frequency band;
a matching circuit for receiving/transmitting the signal of the second frequency band through a first feed point and receiving/transmitting the signal of the fourth frequency band through a second feed point;
a first end of a first radiator of the first antenna is grounded through a first inductor, wherein the first feed point, a first grounding point of the first antenna, and a portion of the first radiator from the first feed point to the first grounding point of the first antenna form a first-form antenna;
a first end of a second radiator of the second antenna is grounded through a second inductor, wherein the second feed point, the first grounding point of the second antenna, and a portion of the second radiator from the second feed point to the grounding point of the second antenna form a third form of antenna; the first form and the third form are the same.
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| CN211603725U (en) * | 2020-01-20 | 2020-09-29 | 东莞市富斯遥控模型技术有限公司 | Double-antenna wireless video glasses |
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| KR100374570B1 (en) * | 1999-11-22 | 2003-03-03 | 삼성전자주식회사 | Apparatus of commonly using an antenna for call signal and television broadcasting signal in radio communication terminal |
| CN202004812U (en) * | 2010-12-01 | 2011-10-05 | 惠州Tcl移动通信有限公司 | Multi-antenna structure of mobile terminal |
| CN104362425B (en) * | 2014-11-20 | 2018-04-06 | 惠州Tcl移动通信有限公司 | A kind of mobile terminal of shared NFC antenna |
| JP6666067B2 (en) * | 2014-12-25 | 2020-03-13 | 京セラ株式会社 | Mobile terminal |
| CN105490004B (en) * | 2015-12-23 | 2018-05-15 | 广东欧珀移动通信有限公司 | A kind of mobile terminal antenna system and mobile terminal |
| CN105514624B (en) * | 2015-12-23 | 2018-06-22 | 广东欧珀移动通信有限公司 | A kind of mobile terminal antenna system and mobile terminal |
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| CN106299598A (en) * | 2015-05-27 | 2017-01-04 | 富泰华工业（深圳）有限公司 | Electronic installation and many feed antennas thereof |
| CN105406176A (en) * | 2015-12-09 | 2016-03-16 | 广东欧珀移动通信有限公司 | Antenna system for mobile terminal and mobile terminal |
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