CN217823237U - Electronic device - Google Patents

Abstract

The present application relates to an electronic device. The electronic equipment comprises a first radiator and a second radiator which are arranged on the first shell, and a first gap for capacitive coupling is arranged between the first radiator and the second radiator; the third radiator included in the second antenna unit is formed by a second gap formed in the second shell; in addition, when the electronic equipment is in a folded state, the projection of the first gap towards the second shell falls into at least part of the second gap; furthermore, based on this application for when electronic equipment is fold condition, the coupling gap on the first casing can be the symmetry setting with the gap on the second casing, thereby can optimize the antenna when electronic equipment is fold condition and reduce the width of a wave, guarantee the performance of antenna.

Description

Electronic equipment

technical field

The present application relates to the technical field of communications, and in particular to an electronic device.

Background technique

With the development of communication technology, users have higher and higher requirements on the portability and appearance of electronic equipment. Under the trend of pursuing the ultimate large screen, foldable electronic devices (such as foldable mobile phones) are becoming more and more popular.

An antenna is usually included in an electronic device to realize the communication function of the electronic device; however, in the related art, when the folding screen electronic device is in a folded state, the communication performance of the antenna will decrease.

Utility model content

Based on this, it is necessary to provide an electronic device capable of improving the communication performance of the antenna in a folded state in order to solve the above technical problems.

In the first aspect, the present application provides an electronic device, including a first casing, a second casing, a first antenna unit and a second antenna unit, the second casing is rotatably connected to the first casing, so that the electronic device Switch between expanded state and collapsed state;

The first antenna unit includes a first radiator and a second radiator arranged on the first casing, a first gap is provided between the first radiator and the second radiator, so that the first radiator and the second radiator body capacitive coupling;

The second antenna unit includes a third radiator, and the third radiator is formed through a second slot opened on the second casing;

Wherein, when the electronic device is in a folded state, the projection of the first slit toward the second casing falls into at least part of the second slit.

In one of the embodiments, the third radiator includes a suspension branch; the suspension branch is formed by at least one antenna slot opened in the second housing, and the second slot communicates with the antenna slot;

When the electronic device is in a folded state, projections of the first radiator and the second radiator toward the second housing at least partly fall into the region where the third radiator is located.

In one of the embodiments, the electronic device further includes a radio frequency circuit;

The radio frequency circuit is respectively connected to the first antenna unit and the second antenna unit; the radio frequency circuit is used to switch the first antenna unit or the second antenna unit to be the main antenna currently activated.

In one of these embodiments,

The first antenna unit further includes a first signal source and a first matching circuit, a first feed point and a first ground point arranged on the first radiator, and a second ground point arranged on the second radiator;

The first grounding point is set at the end of the first radiator away from the first slot; the second grounding point is set at the end of the second radiator away from the first slot;

The radio frequency circuit is connected to the first signal source; the radio frequency circuit is used to determine the antenna frequency band of the first antenna unit;

The first signal source is electrically connected to the first matching circuit to the first feeding point; the first matching circuit is used to switch the first antenna unit to a corresponding working state according to the frequency band of the antenna.

In one of the embodiments, the first feeding point is set close to the first gap;

When the electronic device is unfolded, it supports the first resonant mode to support the sending and receiving of low-frequency radio frequency signals; wherein the first resonant mode is the fundamental mode from the first ground point to the first radiator corresponding to the first slot.

In one of the embodiments, the first matching circuit includes a first antenna switch; one end of the first antenna switch is connected to the first signal source, and the other end is connected to the first feeding point;

When the electronic device is in a folded state and the second antenna unit is used as the currently enabled main antenna, the first antenna switch is used to adjust the resonant frequency of the first antenna unit until the resonant frequencies of the first antenna unit and the second antenna unit are different.

In one embodiment, the second antenna unit further includes a fourth radiator; a third gap is provided between the fourth radiator and the third radiator, so that the fourth radiator and the third radiator are capacitively coupled.

In one of these embodiments,

The second antenna unit also includes a second signal source, a second matching circuit and a second antenna switch, a second feed point and a second ground point arranged on the third radiator, and a third antenna arranged on the fourth radiator. grounding point; the third grounding point is set at the end of the fourth radiator away from the third slot;

The radio frequency circuit is connected to the second signal source; the second signal source is electrically connected to the second matching circuit to the second feeding point; the second ground point is electrically connected to the second antenna switch, and the second antenna switch is grounded;

Wherein, when the electronic device is in a folded state and the first antenna unit is used as the currently enabled low-frequency main antenna, the second antenna switch is used to adjust the resonant frequency of the second antenna unit until the resonant frequency of the second antenna unit and the first antenna unit different.

In one of the embodiments, the third radiator is provided with a first end close to the second slot, and a second end close to the third slot; the second ground point is provided between the second end and the second feeding point;

When the electronic device is unfolded, it supports the second resonance mode and the third resonance mode to support the transmission and reception of low-frequency radio frequency signals, wherein the second resonance mode is the fundamental mode from the second feeding point to the radiator corresponding to the third slot ; The third resonance mode is the fundamental mode of the third radiator corresponding from the first end to the second end.

In one of the embodiments, the electronic device further includes a third antenna unit; the third antenna unit includes a fifth radiator, and the fifth radiator is formed through a fourth slot opened on the first housing;

Wherein, when the electronic device is in a folded state, the projection of the third slit toward the first casing at least partially falls into the fourth slit.

In one of the embodiments, the third antenna unit further includes a third signal source and a third matching circuit, and a third feeding point and a fourth grounding point arranged on the fifth radiator;

The fourth grounding point is set at the end of the fifth radiator away from the fourth slot; the third feeding point is set at the end of the fifth radiator close to the fourth slot;

The third signal source is electrically connected to the third matching circuit to the third feeding point.

In the above-mentioned electronic device, the first antenna unit includes a first radiator and a second radiator arranged on the first housing, and a first gap for capacitive coupling is provided between the first radiator and the second radiator; The third radiator included in the second antenna unit is formed through the second slit opened on the second casing; in addition, when the electronic device is in a folded state, the projection of the first slit toward the second casing falls into at least part of the second slit. Furthermore, based on the present application, when the electronic device is in a folded state, the coupling gap on the first casing and the gap on the second casing can be arranged symmetrically, thereby optimizing the antenna drop when the electronic device is in a folded state , to ensure the performance of the antenna.

Description of drawings

Fig. 1 is a schematic structural diagram of an electronic device in an embodiment;

FIG. 2 is a schematic structural diagram of an electronic device in a folded state in an embodiment;

FIG. 3 is a schematic structural diagram of a radio frequency circuit of an electronic device in an embodiment;

Fig. 4 is a schematic structural diagram of a first antenna unit in an embodiment;

FIG. 5 is a schematic diagram of a resonance mode of the first antenna unit in an unfolded state of the electronic device in one embodiment;

6 is a schematic structural diagram of an electronic device in another embodiment;

Fig. 7 is a schematic structural diagram of a second antenna unit in an embodiment;

Fig. 8 is a specific structural schematic diagram of the second antenna unit in one embodiment

FIG. 9 is a schematic diagram of a resonance mode of the second antenna unit in an unfolded state of the electronic device in one embodiment;

Fig. 10 is a schematic diagram of the antenna efficiency of the first antenna unit when the electronic device is in a folded state in one embodiment;

Fig. 11 is a schematic diagram of the antenna efficiency of the second antenna unit when the electronic device is in a folded state in one embodiment;

Fig. 12 is a schematic structural diagram of an electronic device in an embodiment;

FIG. 13 is a schematic diagram of the specific structure of the electronic device in a folded state;

Fig. 14 is a schematic structural diagram of a third antenna unit in an embodiment;

Fig. 15 is a diagram of the internal structure of an electronic device in one embodiment.

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

It can be understood that the terms "first", "second" and the like used in this application may be used to describe various elements herein, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. Spatial terms such as "below", "below", "below", "under", "on", "above", etc., in This may be used to describe the relationship of one element or feature to other elements or features shown in the figures. It will be understood that the spatially relative terms encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "below" or "beneath" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "below" and "beneath" can encompass both an orientation of above and below. In addition, the device may be otherwise oriented (eg, rotated 90 degrees or at other orientations) and the spatial descriptors used herein interpreted accordingly.

It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element, or connected to the other element through an intervening element. In addition, "connection" in the following embodiments should be understood as "electrical connection", "communication connection" and the like if there is transmission of electrical signals or data between the connected objects. When used herein, the singular forms "a", "an" and "the/the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising/comprising" or "having" etc. specify the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not exclude the presence or addition of one or more The possibility of other features, integers, steps, operations, components, parts or combinations thereof. Meanwhile, the term "and/or" used in this specification includes any and all combinations of the related listed items.

Traditional partially foldable electronic devices can be folded by using the foldable function of the flexible display. However, when the traditional foldable electronic device is in the folded state (hereinafter referred to as the closed cover), a complete metal middle frame is under the projection of some antennas, and the antenna efficiency drops a lot, and the antenna switch cannot optimize the drop in the closed cover, resulting in antenna performance has been at a relatively poor level. At the same time, the side gap after closing the cover cannot be symmetrical, which affects the appearance. In this regard, the inventor proposes the electronic device in the embodiment of the present application.

The antenna in this application can be applied to electronic equipment. In some examples, the antenna can realize multi-mode switching of the low frequency (Lower Band, LB) band, where the low frequency can refer to lower than 1000MHz; in other examples, the antenna can also realize the middle and high frequency band (Middle High Band, MHB) multi-mode switching, wherein, medium and high frequency can refer to 1000MHz-3000MHz; in addition, high frequency (High Band, HB) segment can also be supported, wherein, high frequency can refer to 2500-2700MHz. It should be noted that the antenna may also support a carrier aggregation (Carrier Aggregation, CA) frequency band.

Further, the antenna in this application may refer to the LB main antenna. In addition, the present application may include two mutually switchable LB main antennas; wherein, the antennas may cover LTE (Long Term Evolution) B5/8/20/28, NR (NewRadio) N5/8/20/28, GSM ( Global System for Mobile Communications) G850/900 and other LB frequency bands.

As used herein, an "electronic device" (which may also be referred to as a "terminal" or "mobile terminal" or "electronic device") includes, but is not limited to, configured to ), digital subscriber line (DSL), digital cable, direct cable connection, and/or another data connection/network) and/or via (for example, for cellular networks, wireless local area networks (WLAN), digital A TV network, a satellite network, an AM-FM broadcast transmitter, and/or a device for receiving/transmitting communication signals via a wireless interface of another communication terminal. A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data communication capabilities; may include radiotelephones, pagers, Internet/Intranet access , a PDA with a web browser, organizer, calendar, and/or Global Positioning System (GPS) receiver; and a conventional laptop and/or palm-type receiver or other electronic device including a radiotelephone transceiver. A mobile phone is an electronic device equipped with a cellular communication module.

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

In one embodiment, as shown in FIG. 1 , an electronic device 100 is provided, including a first housing 10, a second housing 20, a first antenna unit 30, and a second antenna unit 40. The second housing 20 Rotately connected with the first casing 10, so that the electronic device 100 can be switched between the unfolded state and the folded state;

The first antenna unit 30 includes a first radiator 310 and a second radiator 320 disposed on the first casing 10, and a first gap 301 is provided between the first radiator 310 and the second radiator 320, so that the second A radiator 310 is capacitively coupled to a second radiator 320;

The second antenna unit 40 includes a third radiator 410, and the third radiator 410 is formed through the second slot 401 opened on the second housing 20;

Wherein, when the electronic device 100 is in a folded state, the projection of the first slit 310 toward the second casing 20 falls into at least part of the second slit 410 .

Specifically, the electronic device 100 may include a first casing 10 and a second casing 20, wherein the second casing 20 is rotatably connected to the first casing 10; further, the second casing 20 is connected to the first casing When 10 is relatively rotated to a relatively unfolded state, the electronic device 100 is in an unfolded state; when the second casing 20 and the first casing 10 are relatively rotated to a relatively stacked state, the electronic device 100 is in a folded state, and the electronic device 100 is in a folded state. 100 is capable of switching between an unfolded state and a collapsed state.

The casing of the electronic device may have a corresponding number of sides, and the radiator of the antenna unit may be adjacent to the sides of the casing; taking the electronic device 100 shown in FIG. 1 in an unfolded state as an example, the first casing 10 may have Adjacent to the side 1 of the second housing 20 , the second housing 20 may have a side A adjacent to the first housing 10 , and the side 1 and the side A are disposed adjacently. Further, the first housing 10 may also have a side 2 away from the second housing 20 and a side 3 adjacent to the second housing 20; the second housing 20 may have a side far away from the first housing 10 B, and the side C adjacent to the first casing 10 . The side 2 and the side B are arranged oppositely, and the side 3 and the side C are arranged adjacent to each other.

In some examples, the radiator of the first antenna unit 30 may be disposed on the above-mentioned sides of the first housing 10 , and the radiator of the second antenna unit 40 may be disposed on the above-mentioned sides of the second housing 20 .

Taking the adjacent side 1 and side A shown in FIG. 1 as an example, the first antenna unit 30 includes a radiator adjacent to side 1, and the part of the first antenna unit 30 adjacent to side 1 radiates There is a coupling gap between the bodies, and the coupling gap may refer to a gap for capacitive coupling between the radiators; specifically, the first antenna unit 30 may include a first radiator 310 and a second radiator arranged on the first housing 10 320 , and a first gap 301 is provided between the first radiator 310 and the second radiator 320 , so that the first radiator 310 and the second radiator 320 are capacitively coupled. Wherein, the capacitive coupling means that an electric field is generated between the first radiator 310 and the second radiator 320, the signal of the first radiator 310 can be transmitted to the second radiator 320 through the electric field, and the signal of the second radiator 320 can be The electric field is transmitted to the first radiator 310 so that the first radiator 310 and the second radiator 320 can realize electrical signal conduction even in a disconnected state.

Furthermore, the width of the first slit 301 can be adjusted, for example, according to actual conditions; ground point on the body 320.

In addition, taking the adjacent side 1 and side A in FIG. 1 as an example, the second antenna unit 40 includes a radiator adjacent to the side A, and the part of the second antenna unit 40 adjacent to the side A radiates The body is configured to be formed by opening a slit on the side A; specifically, the second antenna unit 40 may include a third radiator 410, and the third radiator 410 is formed by opening a second slit 401 on the second housing 20 . Wherein, the second slit 401 can be obtained by side slits. Further, the second slit 401 may refer to a slit formed on a frame surrounding the periphery of the substrate of the electronic device 100 .

In some examples, the width of the second slit 401 can be adjusted, for example, according to actual conditions; in some examples, as shown in FIG. At the same time, part of the third radiator 410 may be adjacent to the side B.

As shown in FIG. 2 , when the electronic device 100 is in a folded state, the projection of the first slit 301 toward the second casing 20 falls into at least part of the second slit 401 . Furthermore, when the electronic device is in a folded state, the coupling gap (first gap 301) on the first casing 10 is at least partially symmetrical to the gap (second gap 401) on the second casing 20, which improves antenna performance; further, When the electronic device is in a folded state, the coupling gap (first gap 301) on the first casing 10 and the gap (second gap 401) on the second casing 20 are arranged symmetrically, so that the electronic device can be optimized when it is in a folded state. Antenna drop, to ensure the performance of the antenna.

At the same time, the coupling gap (first gap 301) on the first casing 10 and the gap (second gap 401) on the second casing 20 are arranged symmetrically, so that the electronic device 100 can cover the gap symmetrically, and achieve a symmetrical gap design .

Further, as shown in FIG. 2 , the electronic device 100 may further include a rotating part 50 , and the rotating part 50 is rotatably connected between the first casing 10 and the second casing 20 so that the first casing 10 and the second casing The body 20 rotates relatively. In some examples, the rotating component 50 may include a rotating shaft through which the first casing 10 and the second casing 20 are rotatably connected. In some other examples, the first housing 10 and the second housing 20 may also be rotatably connected in other ways, as long as the first housing 10 can rotate relative to the second housing 20 .

In one embodiment, as shown in FIG. 2 , the third radiator 410 may include a suspension branch 412; the suspension branch is formed by at least one antenna slot opened in the second housing 20, and the second slot 401 communicates with the antenna slot;

When the electronic device is in a folded state, projections of the first radiator 310 and the second radiator 320 toward the second housing 20 at least partly fall into the area where the third radiator 410 is located.

Specifically, the third radiator 410 in the present application may include a suspension branch, as shown in FIG. connected.

Based on this application, when the electronic device 100 is in a folded state, the gap below the projection is symmetrical, wherein the suspended branches contained in the third radiator can form an antenna slot integrally with the electronic device 100, and then the projection of the antenna slot of the first antenna unit 30 Below is the antenna slot of the second antenna 40 , as shown in FIG. 2 , so as to facilitate antenna radiation.

In one of the embodiments, as shown in FIG. 3 , the electronic device 100 may further include a radio frequency circuit 60;

The radio frequency circuit 60 is connected to the first antenna unit 30 and the second antenna unit 40 respectively; the radio frequency circuit is used to switch the first antenna unit 30 or the second antenna unit 40 as the main antenna currently enabled.

Specifically, taking the electronic device 100 shown in FIG. 3 in an unfolded state as an example, the radio frequency circuit 60 is connected to the first antenna unit 30 and the second antenna unit 40 respectively, and is used to connect the first antenna unit 30 or the second antenna unit 40 Switches to the currently enabled primary antenna. Further, the currently enabled main antenna in the electronic device 100 may refer to the LB main antenna, and the antenna unit not currently enabled as the LB main antenna may serve as the LB secondary antenna. In some examples, both the primary and secondary LB antennas can cover LB frequency bands such as LTE B5/8/20/28, NR N5/8/20/28, and GSM G850/900. The present application can cover the LB bandwidth required by the electronic device 100 .

In some examples, the radio frequency circuit 60 may include a radio frequency chip, and the radio frequency chip is connected to the first antenna unit 30 and the second antenna unit 40 respectively, and the application can switch between the main and secondary LB antennas through the radio frequency chip. Further, the radio frequency chip can be connected to the signal source of the antenna unit, and the radio frequency chip determines the antenna frequency band of the antenna unit.

In one of the embodiments, referring to FIG. 3 , as shown in FIG. 4 , the first antenna unit 30 further includes a first signal source 702 and a first matching circuit 704, which are set at the first feeding point on the first radiator 310 706. A first ground point 708, and a second ground point 710 arranged on the second radiator 320;

The first ground point 708 is set at the end 11 of the first radiator 310 away from the first slot 301; the second ground point 710 is set at the end 12 of the second radiator 320 away from the first slot 301;

The radio frequency circuit 60 is connected to the first signal source 702; the radio frequency circuit is used to determine the antenna frequency band of the first antenna unit 30;

The first signal source 702 is electrically connected to the first matching circuit 704 and the first feeding point 706; the first matching circuit 704 is used to switch the first antenna unit 30 to a corresponding working state according to the antenna frequency band.

Specifically, the radio frequency circuit 60 may include a radio frequency chip, and the radio frequency chip may be connected to the first signal source 702 of the first antenna unit 30, and then the radio frequency chip determines the frequency band of the first antenna unit 30, and the first matching circuit 704 may determine the frequency band according to the frequency band. Defines the state of the toggle.

In one of the embodiments, the first feeding point 706 is set close to the first slot 301;

When the electronic device 100 is in the unfolded state, it supports the first resonance mode to support the transmission and reception of low-frequency radio frequency signals; wherein, the first resonance mode is the fundamental mode of the first radiator 30 corresponding to the first slit 301 from the first ground point 708 .

Specifically, as shown in FIG. 5 , when the electronic device 100 is unfolded, the mode 1 of the first antenna unit 30 is the first resonant mode, and in some examples, the first resonant mode is the fundamental mold. Further, the first resonance mode is the fundamental mode of the first radiator 30 corresponding to the first slit 301 from the first ground point 708 .

In other examples, the resonance frequency of the first resonance mode can be switched by an antenna switch on the first matching circuit 704 .

In one of the embodiments, the first matching circuit 704 may include a first antenna switch; one end of the first antenna switch is connected to the first signal source 702, and the other end is connected to the first feeding point 706;

When the electronic device 100 is in a folded state and the second antenna unit 40 is used as the currently enabled main antenna, the first antenna switch is used to adjust the resonant frequency of the first antenna unit 30 until the first antenna unit 30 and the second antenna unit 40 The resonant frequency is different.

Specifically, take the radio frequency circuit 60 including a radio frequency chip as an example; the radio frequency chip is connected to the first signal source 702 of the first antenna unit 30, and then the radio frequency chip can determine the frequency band of the first antenna unit 30, and the first antenna switch can be based on the frequency band of the radio frequency chip. The determined frequency band defines the state of antenna switching. Referring to FIG. 5 , in mode 1, the resonant frequency can be switched by the antenna switch on the first matching circuit 704 . It should be noted that the first matching circuit 704 may further include an antenna matching circuit, one end of the antenna matching circuit is connected to the first signal source 702 , and the other end is connected to the first feeding point 706 .

As mentioned above, when the second antenna unit 40 is used as the main antenna currently enabled, the present application adjusts the antenna switch state of the first antenna unit 30 so that the resonance of the first antenna unit 30 is longer or shorter, thereby avoiding two antennas. The resonance of the unit is at the same frequency (when the resonance of the two antennas is at the same frequency, the mutual influence between the two antennas will be the greatest), so that the influence of the first antenna unit 30 on the second antenna unit 40 can be reduced, and the efficiency can be improved .

In one embodiment, as shown in FIG. 6 , the second antenna unit 40 further includes a fourth radiator 420; a third gap 402 is provided between the fourth radiator 420 and the third radiator 410, so that the fourth radiator The body 420 is capacitively coupled with the third radiator 410 .

Specifically, taking side 1, side A, and side B of the electronic device 100 as an example, the third antenna unit 40 includes a radiator adjacent to side A, and a radiator adjacent to side B, There is a coupling gap between the radiators, and the coupling gap may refer to a gap for capacitive coupling between the radiators; specifically, the second antenna unit 40 includes a third radiator 410 and a fourth radiator 420, and the third radiator 410 passes through The second slit 401 opened on the side A of the second housing 20 is formed, and the fourth radiator 420 is adjacent to the side.

Further, a third gap 402 is provided between the third radiator 410 and the fourth radiator 420 , so that the third radiator 410 and the fourth radiator 420 are capacitively coupled. Wherein, capacitive coupling means that an electric field is generated between the third radiator 410 and the fourth radiator 420, the signal of the third radiator 410 can be transmitted to the fourth radiator 420 through the electric field, and the signal of the fourth radiator 420 can be The electric field is transmitted to the third radiator 410 , so that the third radiator 410 and the fourth radiator 420 can realize electrical signal conduction even in a disconnected state.

Wherein, the width of the third slit 402 can be adjusted, for example, according to the actual situation; 420 upper ground point.

In one of the embodiments, taking the unfolded state of the electronic device 100 shown in FIG. 7 as an example, the first antenna unit 30 includes a first signal source 702, the second antenna unit 40 includes a second signal source 802, the radio frequency circuit 60 is The first signal source 702 and the second signal source 802 are connected, and are used to switch the first antenna unit 30 or the second antenna unit 40 as the currently enabled main antenna. Further, the currently enabled main antenna in the electronic device 100 may refer to the LB main antenna, and the antenna unit not currently enabled as the LB main antenna may serve as the LB secondary antenna. In some examples, both the primary and secondary LB antennas can cover LB frequency bands such as LTE B5/8/20/28, NRN5/8/20/28, and GSM G850/900.

In some examples, the radio frequency circuit 60 may include a radio frequency chip, and the radio frequency chip is connected to the first signal source 702 and the second signal source 802 respectively, and the present application may switch between the main and secondary LB antennas through the radio frequency chip. Further, the radio frequency chip can be connected to the signal source of the antenna unit, and the radio frequency chip determines the antenna frequency band of the antenna unit.

In one embodiment, referring to FIG. 7 , as shown in FIG. 8 , the second antenna unit 40 further includes a second signal source 802 , a second matching circuit 804 and a second antenna switch 806 arranged on the third radiator 410 The second feeding point 808, the second grounding point 810, and the third grounding point 812 arranged on the fourth radiator 420; the third grounding point 812 is arranged at the end of the fourth radiator 420 away from the third slot 402;

The radio frequency circuit 60 is connected to the second signal source 802; the second signal source 802 is electrically connected to the second matching circuit 804 to the second feed point 808; the second ground point 810 is electrically connected to the second antenna switch 806, and the second antenna switch 806 is grounded ;

Wherein, when the electronic device is in a folded state and the first antenna unit 30 is used as the currently enabled low-frequency main antenna, the second antenna switch 806 is used to adjust the resonant frequency of the second antenna unit 40 until the second antenna unit 40 and the first antenna The resonant frequency of the unit 30 is different.

Specifically, taking the radio frequency circuit 60 including a radio frequency chip as an example, the radio frequency chip is connected to the first signal source 802 of the second antenna unit 30, and then the radio frequency chip can determine the frequency band of the first antenna unit 40, and the second antenna switch 806 can be based on The frequency band determined by the radio frequency chip defines the state of the antenna switching. Furthermore, when the first antenna unit 30 is used as the currently enabled main antenna, the present application adjusts the antenna switch state of the second antenna unit 40 so that the resonance of the second antenna unit 40 is longer or shorter, thereby avoiding two antennas. The resonance of the unit is at the same frequency (when the resonance of the two antennas is at the same frequency, the mutual influence between the two antennas will be the greatest), so that the influence of the second antenna unit 40 on the first antenna unit 30 can be reduced, and the efficiency can be improved .

In one embodiment, as shown in FIG. 8 , the third radiator 410 is provided with a first end 13 close to the second slot 401 and a second end 14 close to the third slot 402; the second grounding point 810 is set at between the second end 14 and the second feeding point 808;

When the electronic device 100 is unfolded, it supports the second resonant mode and the third resonant mode to support the transmission and reception of low-frequency radio frequency signals, wherein the second resonant mode is from the second feeding point 808 to the radiator corresponding to the third slot 402 The fundamental mode of the third resonance mode is the fundamental mode of the third radiator corresponding from the first end 13 to the second end 14 .

Specifically, as shown in FIG. 9 , when the electronic device 100 is unfolded, the mode 2 of the second antenna unit 40 is the second resonance mode, and the mode 3 of the second antenna unit 40 is the third resonance mode.

The second resonant mode is the fundamental mode from the second feeding point 808 to the third slot 402; further, the resonant frequency of the second resonant mode (mode 2) is switched by the second antenna switch 806 in FIG. 8 .

The third resonance mode is the fundamental mode of the radiator corresponding to the second end 14 from the first end 13; it should be noted that the third radiator 410 can be used as the first antenna and the second antenna, and the third resonance mode can be The fundamental mode of the first antenna plus the second antenna. Understandably, the first antenna and the second antenna are not limited to the first radiator 10 .

In order to further explain the solution of this application, the following will be described in conjunction with specific examples:

When the electronic device 100 is in a folded state (in the closed mode), taking LTE B8 (0.88-0.96GHz) as an example, when the switching mode is that the first antenna unit 30 is the main antenna and the second antenna unit 40 is the secondary antenna, the Switching the state of the second antenna unit 40 (using the second antenna switch 806 in FIG. 8 ) can improve the efficiency of the first antenna unit 30. As shown in FIG. dB boost.

Further, when the electronic device 100 is in the folded state (in the closed mode), taking LTE B8 (0.88-0.96 GHz) as an example, when the switching mode is that the second antenna unit 40 is the main antenna, and the first antenna unit 30 is the auxiliary antenna , by switching the state of the first antenna unit 30 (the antenna switch on the first matching circuit 704 in FIG. 4 can be used), the efficiency of the second antenna unit 40 can be improved. As shown in FIG. 11 , the frequency center value is increased 1.1dB, up to 3dB boost.

As mentioned above, the application adjusts the antenna switch state of the auxiliary antenna so that the resonance of the auxiliary antenna is longer or shorter, so that the influence of the auxiliary antenna on the main antenna can be reduced, and the efficiency can be improved.

Taking the second antenna unit including the third radiator 410 and the fourth radiator 420 as an example, in one embodiment, as shown in FIG. 12 , the electronic device 100 may further include a third antenna unit 90; the third antenna unit 90 includes The fifth radiator 910, the fifth radiator 910 is formed through the fourth slit 901 opened on the first casing 10;

Wherein, when the electronic device 100 is in a folded state, the projection of the third slit 402 toward the first casing 10 at least partially falls into the fourth slit 901 .

Specifically, taking the opposite side 2 and side B as an example, the third antenna unit 90 includes a radiator adjacent to side 2, and the radiator adjacent to side 2 is configured to pass through the 2; specifically, the third antenna unit 90 may include a fifth radiator 910, and the fifth radiator 910 is formed through a fourth slit 901 opened on the first casing 10. Wherein, the fourth slit 901 can be obtained by side slits. Further, the fourth slit 901 may refer to a slit formed on a frame surrounding the periphery of the substrate of the electronic device 100 .

In some examples, the width of the fourth slot 901 can be adjusted, for example, according to the actual situation; in some examples, as shown in FIG. Place.

As shown in FIG. 13 , when the electronic device 100 is in a folded state, the projection of the third slit 402 toward the first casing 10 at least partially falls into the fourth slit 901 . Furthermore, when the electronic device is in a folded state, the coupling slot (third slot 402) on the second housing 20 is at least partially symmetrical to the slot (fourth slot 901) on the first housing 10, which improves antenna performance; further, When the electronic device is in a folded state, the coupling gap (third gap 402) on the second casing 20 and the gap (fourth gap 901) on the first casing 10 are arranged symmetrically, so that the electronic device can be optimized when it is in a folded state. Antenna drop, to ensure the performance of the antenna.

At the same time, the coupling gap (third gap 402) on the second housing 20 and the gap (fourth gap 901) on the first housing 10 are arranged symmetrically, so that the electronic device 100 can be symmetrically closed to achieve a symmetrical gap design. , to meet the appearance requirements.

In some examples, the third antenna unit 90 can be implemented using a B20 or GPS L5 antenna, and the third antenna unit 90 can be multiplexed with other antenna frequency band requirements in the electronic device 100, specifically, the antenna of the third antenna unit 90 According to the position of the feed point and the matching, the antenna frequency band of the intermediate frequency or the high frequency can be obtained.

In one of the embodiments, as shown in FIG. 14 , the third antenna unit 90 further includes a third signal source 903 and a third matching circuit 905, and a third feeding point 907 set on the fifth radiator 910, a third Four grounding points 912;

The fourth grounding point 912 is set at the end of the fifth radiator 910 away from the fourth slot 901; the third feeding point 907 is set at the end of the fifth radiator 910 close to the fourth slot 901;

The third signal source 903 is electrically connected to the third matching circuit 905 to the third feeding point 907 .

Based on the above, based on the present application, when the electronic device is in a folded state, the coupling gap on the casing can be arranged symmetrically with the gap on the opposite casing, which can not only optimize the antenna drop when the electronic device is in a folded state, but also ensure the performance of the antenna. It can also meet the appearance requirements.

In one embodiment, an electronic device is provided. The electronic device may be a terminal, and its internal structure may be as shown in FIG. 15 . The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Wherein, the processor of the computer device is used to provide calculation and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be realized through WIFI, mobile cellular network, NFC (near field communication) or other technologies. The display screen of the computer device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device may be a touch layer covered on the display screen, or a button, a trackball or a touch pad provided on the casing of the computer device , and can also be an external keyboard, touchpad, or mouse.

Those skilled in the art can understand that the structure shown in Figure 15 is only a block diagram of a partial structure related to the solution of this application, and does not constitute a limitation on the computer equipment on which the solution of this application is applied. The specific computer equipment can be More or fewer components than shown in the figures may be included, or some components may be combined, or have a different arrangement of components.

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be determined by the appended claims.

Claims (11)

1. An electronic device is characterized by comprising a first shell, a second shell, a first antenna unit and a second antenna unit, wherein the second shell is rotatably connected with the first shell, so that the electronic device is switched between an unfolded state and a folded state;

the first antenna unit comprises a first radiator and a second radiator which are arranged on the first shell, and a first gap is formed between the first radiator and the second radiator so that the first radiator and the second radiator are in capacitive coupling;

the second antenna unit comprises a third radiator, and the third radiator is formed by a second slot formed in the second shell;

when the electronic device is in the folded state, the projection of the first gap towards the second shell falls into at least part of the second gap.

2. The electronic device of claim 1, wherein the third radiator comprises a floating stub; the suspension branch knot is formed by at least one antenna slot formed in the second shell, and the second gap is communicated with the antenna slot;

electronic equipment is during fold condition, first irradiator with second irradiator orientation the projection at least part of second casing falls into third irradiator place region.

3. The electronic device of claim 1 or 2, further comprising radio frequency circuitry;

the radio frequency circuit is respectively connected with the first antenna unit and the second antenna unit; the radio frequency circuit is used for switching the first antenna unit or the second antenna unit to a currently enabled main antenna.

4. The electronic device of claim 3,

the first antenna unit further comprises a first signal source, a first matching circuit, a first feed point, a first grounding point and a second grounding point, wherein the first signal source and the first matching circuit are arranged on the first radiating body;

the first grounding point is arranged at one end, deviating from the first gap, of the first radiating body; the second grounding point is arranged at one end, deviating from the first gap, of the second radiator;

the radio frequency circuit is connected with the first signal source; the radio frequency circuit is used for determining an antenna frequency band of the first antenna unit;

the first signal source electrically connects the first matching circuit to the first feed point; the first matching circuit is used for switching the first antenna unit to a corresponding working state according to the antenna frequency band.

5. The electronic device of claim 4, wherein the first feed point is disposed proximate to the first slot;

when the electronic equipment is in the unfolding state, a first resonance mode is supported so as to support the receiving and transmitting of low-frequency radio frequency signals; the first resonant mode is a fundamental mode of the first radiator corresponding to the first slot from the first ground point.

6. The electronic device of claim 4, wherein the first matching circuit comprises a first antenna switch; one end of the first antenna switch is connected with the first signal source, and the other end of the first antenna switch is connected with the first feeding point;

when the electronic equipment is in the folded state and the second antenna unit is used as the current enabled main antenna, the first antenna switch is used for adjusting the resonant frequency of the first antenna unit until the resonant frequency of the first antenna unit is different from that of the second antenna unit.

7. The electronic device of claim 3, wherein the second antenna unit further comprises a fourth radiator; and a third gap is formed between the fourth radiator and the third radiator so that the fourth radiator and the third radiator are in capacitive coupling.

8. The electronic device of claim 7,

the second antenna unit further comprises a second signal source, a second matching circuit, a second antenna switch, a second feed point, a second grounding point and a third grounding point, wherein the second feed point and the second grounding point are arranged on the third radiator; the third grounding point is arranged at one end, deviating from the third gap, of the fourth radiator;

the radio frequency circuit is connected with the second signal source; the second signal source is electrically connected with the second matching circuit to the second feed point; the second grounding point is electrically connected with the second antenna switch, and the second antenna switch is grounded;

when the electronic device is in the folded state and the first antenna unit is used as the currently enabled low-frequency main antenna, the second antenna switch is used for adjusting the resonant frequency of the second antenna unit until the resonant frequency of the second antenna unit is different from that of the first antenna unit.

9. The electronic device of claim 8, wherein the third radiator is provided with a first end near the second slot and a second end near the third slot; the second grounding point is arranged between the second end and the second feeding point;

when the electronic device is in the unfolded state, supporting a second resonance mode and a third resonance mode to support receiving and transmitting of low-frequency radio-frequency signals, wherein the second resonance mode is a base mode of a radiator corresponding to the third slot from the second feeding point; the third resonant mode is a fundamental mode of the third radiator corresponding to the second end from the first end.

10. The electronic device of claim 7, further comprising a third antenna element; the third antenna unit comprises a fifth radiator formed by a fourth gap formed in the first shell;

when the electronic device is in the folded state, the projection of the third gap towards the first shell at least partially falls into the fourth gap.

11. The electronic device of claim 10, wherein the third antenna unit further comprises a third signal source and a third matching circuit, and a third feeding point and a fourth grounding point disposed on the fifth radiator;

the fourth grounding point is arranged at one end, deviating from the fourth slot, of the fifth radiating body; the third feeding point is arranged at one end, close to the fourth gap, of the fifth radiator;

the third signal source electrically connects the third matching circuit to the third feeding point.

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