Electronic device

CN224626650UActive Publication Date: 2026-08-11BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

相关技术中的平板电脑,由于设备内空间较为紧凑,且各项功能相关的器件较多,故天线的布局空间非常有限,因此在横屏游戏的场景下部分天线被手握持和遮挡,影响通信质量

Benefits of technology

[0029]本公开实施例所提供的电子设备,设备主体包括中框、设于中框一侧的显示屏和设于中框另一侧的背盖,且所述中框、所述显示屏和所述背盖围绕形成设备腔体;而电子设备的多个天线设于所述设备腔体内且位于所述设备主体的横屏顶端,因此该多个天线在电子设备被横屏握持时不会被握持和遮挡,其通信质量不受影响。而且,该多个天线覆盖多个频段,故该多个天线在电子设备被横屏握持时能够满足多个频段的通信需求;所述背盖在与辐射方向为朝向所述背盖的天线相对的位置设有辐射孔,该多个天线覆盖至少覆盖朝向所述显示屏和朝向所述背盖的辐射方向,故该多个天线在电子设备被横屏握持时能够提供多个辐射方向,从而进一步保证通信质量。

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Abstract

This disclosure relates to an electronic device, the electronic device comprising: a device body including a mid-frame, a display screen disposed on one side of the mid-frame and a back cover disposed on the other side of the mid-frame, the mid-frame, the display screen and the back cover surrounding to form a device cavity; a plurality of antennas disposed within the device cavity and located at the top of the horizontal screen of the device body, and covering multiple frequency bands and / or multiple radiation directions, the plurality of radiation directions including those toward the display screen and those toward the back cover; wherein, the back cover has a radiation hole at a position opposite to the antennas whose radiation direction is toward the back cover.
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Description

Technical Field

[0001] This disclosure relates to the field of electronic equipment technology, and specifically to an electronic device. Background Technology

[0002] Electronic devices transmit and receive communication signals through electromagnetic induction via antennas. However, if a user holds the electronic device near the antenna, it affects the radiation and absorption of electromagnetic energy, causing the antenna to deviate from its frequency and thus impacting the communication quality. Therefore, electronic devices often feature antennas designed to prevent them from being gripped too tightly, placing the antenna in a position out of reach of the user's hand to avoid interference.

[0003] Landscape gaming is a common use case for electronic devices, especially tablets, where users hold the device with both hands, resulting in a wider coverage area. Tablets, due to their compact internal space and numerous components related to various functions, have very limited space for antenna placement. Therefore, in landscape gaming scenarios, some antennas are obstructed or blocked by hands, affecting communication quality. Summary of the Invention

[0004] To overcome the problems existing in the related technologies, this disclosure provides an electronic device to solve the defects in the related technologies.

[0005] According to a first aspect of the present disclosure, an electronic device is provided, the electronic device comprising:

[0006] The main body of the device includes a middle frame, a display screen disposed on one side of the middle frame, and a back cover disposed on the other side of the middle frame, wherein the middle frame, the display screen, and the back cover surround to form a device cavity;

[0007] Multiple antennas are disposed within the device cavity and located at the top of the horizontal screen of the device body, and cover multiple frequency bands and / or multiple radiation directions, including those towards the display screen and towards the back cover;

[0008] The back cover has a radiation hole at a position opposite to the antenna whose radiation direction is towards the back cover.

[0009] In some embodiments of this disclosure, at least two of the plurality of antennas whose radiation direction is toward the back cover include at least one 2.4 GHz antenna and at least one 5 GHz antenna;

[0010] Of the plurality of antennas, at least two antennas whose radiation direction is toward the display screen include at least one 2.4G band antenna and at least one 5G band antenna.

[0011] In some embodiments of this disclosure, the electronic device includes a speaker, and the plurality of antennas includes a first antenna;

[0012] The first antenna includes an antenna body and an insulating support shell; the antenna body has a flange at a portion of its circumferential edge, the flange being connected to the back cover to form an antenna cavity between the antenna body and the back cover; the insulating support shell is disposed within the antenna cavity, the insulating support shell abutting against the antenna body and the back cover respectively, and the insulating support shell having an insulating cavity inside;

[0013] The loudspeaker is located inside the insulating cavity.

[0014] In some embodiments of this disclosure, the first antenna is located near the middle frame, and the antenna body does not have a flange at the edge opposite to the middle frame; the insulating support shell has an opening at the position opposite to the middle frame, and the middle frame has a sound outlet at the position opposite to the opening.

[0015] In some embodiments of this disclosure, the first antenna is located at the bottom of the vertical screen of the main body of the device;

[0016] The antenna body does not have a flange at the edges opposite to the top horizontal screen and bottom vertical screen of the middle frame.

[0017] In some embodiments of this disclosure, the electronic device includes a camera; the plurality of antennas include a second antenna, a third antenna, and a fourth antenna arranged sequentially in a direction away from the camera;

[0018] The second antenna and the third antenna radiate towards the back cover; the radiation holes on the back cover opposite to the second antenna and the third antenna are adjacent to the camera hole opposite to the camera.

[0019] The fourth antenna radiates towards the display screen;

[0020] The second antenna and the third antenna operate in different frequency bands, while the third antenna and the fourth antenna operate in the same frequency band.

[0021] In some embodiments of this disclosure, the direction of the feed current on the second antenna is perpendicular to the direction of the feed current on the third antenna;

[0022] The direction of the feed current on the third antenna is perpendicular to the direction of the feed current on the fourth antenna.

[0023] In some embodiments of this disclosure, the direction of the feed current on the second antenna is parallel to the arrangement direction of the second antenna and the third antenna;

[0024] The current value of the feed current at the end of the second antenna closer to the third antenna is less than the current value of the feed current at the end of the second antenna farther from the third antenna.

[0025] In some embodiments of this disclosure, the second antenna is connected to the metal ground of the display screen via a first grounding element and a second grounding element, respectively; the third antenna is connected to the metal ground of the display screen via a second grounding element and a third grounding element, respectively.

[0026] The fourth antenna is connected to the metal ground of the back cover via at least one grounding element.

[0027] In some embodiments of this disclosure, a signal isolation element is provided between the third antenna and the fourth antenna.

[0028] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0029] The electronic device provided in this embodiment includes a main body comprising a mid-frame, a display screen disposed on one side of the mid-frame, and a back cover disposed on the other side of the mid-frame, wherein the mid-frame, the display screen, and the back cover surround to form a device cavity. Multiple antennas of the electronic device are disposed within the device cavity and located at the top of the horizontal screen of the main body. Therefore, these multiple antennas are not obstructed or held when the electronic device is held horizontally, and their communication quality remains unaffected. Furthermore, these multiple antennas cover multiple frequency bands, thus meeting the communication requirements of multiple frequency bands when the electronic device is held horizontally. The back cover has a radiation hole at a position opposite to the antennas whose radiation direction is towards the back cover. The multiple antennas cover at least the radiation directions towards the display screen and towards the back cover, thus providing multiple radiation directions when the electronic device is held horizontally, further ensuring communication quality. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0031] Figure 1 This is a partial schematic diagram of the back cover side of an electronic device illustrated in an exemplary embodiment of this disclosure;

[0032] Figure 2 This is a schematic diagram of the internal structure of an electronic device after the display screen has been disassembled, as shown in an exemplary embodiment of this disclosure;

[0033] Figure 3 This is a schematic diagram illustrating the installation of a first antenna within an electronic device, as shown in an exemplary embodiment of this disclosure;

[0034] Figure 4This is a schematic diagram of the structure of a first antenna shown in an exemplary embodiment of this disclosure;

[0035] Figure 5 This is an exploded view of the structure of the first antenna shown in an exemplary embodiment of this disclosure;

[0036] Figure 6 This is a schematic diagram illustrating a second antenna, a third antenna, and a fourth antenna according to an exemplary embodiment of this disclosure;

[0037] Figure 7 This is a structural block diagram of an electronic device illustrated in an exemplary embodiment of the present disclosure. Detailed Implementation

[0038] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0039] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0040] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0041] First, let's clarify the directions mentioned in this disclosure. The direction parallel to the long side of the display screen is the screen's vertical orientation, and the direction parallel to the short side of the display screen is the screen's horizontal orientation. If the screen is horizontal and vertical, the display screen is in portrait mode; if the screen is vertical and horizontal, the display screen is in landscape mode.

[0042] Based on the technical problems mentioned in the background art, in a first aspect, at least one embodiment of this disclosure provides an electronic device that has multiple antennas disposed therein. These antennas are designed to remain unobstructed and unaffected by hand-held operation, such as in landscape mode, and provide multi-band, multi-radiation direction communication quality. For example, the electronic device is a tablet computer, which can meet communication requirements in landscape gaming scenarios, avoiding antenna obstruction and hand-held operation in such scenarios.

[0043] The electronic device includes a main body and multiple antennas. The main body includes a mid-frame 100, a display screen disposed on one side of the mid-frame 100, and a back cover 200 disposed on the other side of the mid-frame 100. The mid-frame 100, the display screen, and the back cover 200 surround to form a device cavity. The multiple antennas are disposed within the device cavity and located at the top of the horizontal screen of the main body, and cover multiple frequency bands and / or multiple radiation directions.

[0044] The multiple radiation directions include those towards the display screen and those towards the back cover 200. These two radiation directions are opposite and ensure that at least one direction is not blocked in various scenarios, thereby guaranteeing the stability of the antenna's electromagnetic signal radiation and reception. The radiation directions towards the display screen and towards the back cover 200 refer to the orientation from inside the device. For example, when the device is placed horizontally with the display screen facing upward and the back cover 200 facing downward, the radiation direction towards the display screen is vertically upward, and the radiation direction towards the back cover 200 is vertically downward.

[0045] It should be understood that the back cover 200 has a radiation hole 201 at a position opposite to the antenna whose radiation direction is towards the back cover 200. This prevents the metal back cover 200 from affecting the antenna's radiation of electromagnetic signals to or reception of electromagnetic signals from outside the device, ensuring that the antenna facing the back cover 200 can stably transmit and receive electromagnetic signals used for communication. Please refer to the appendix. Figure 1 The illustration shows a partial schematic diagram of the back cover 200 side of an electronic device, with the device in portrait orientation. Figure 1 As can be seen, the back cover 200 is provided with a radiation hole 201, and an antenna is provided inside the electronic device at a position opposite to the radiation hole 201. The radiation direction of the antenna is to radiate outward from the device through the radiation hole 201.

[0046] The multiple frequency bands include 2.4GHz and 5GHz bands. If the electronic device is a tablet computer, these two frequency bands enable the tablet computer to connect to wireless and cellular networks, thereby obtaining a stable network connection in various network environments.

[0047] Preferably, among the plurality of antennas, at least two antennas radiating towards the back cover 200 include at least one 2.4G band antenna and at least one 5G band antenna; and at least two antennas radiating towards the display screen include at least one 2.4G band antenna and at least one 5G band antenna. In this preferred example, when either the radiation direction towards the back cover 200 or the radiation direction towards the display screen is blocked, the other direction can still provide full-band communication of 2.4G and 5G, thereby ensuring full-band communication capability in various scenarios and further improving the stability of communication quality.

[0048] It should be understood that the plurality of antennas can be all or some of the antennas of the electronic device. If the plurality of antennas are all the antennas of the electronic device, then in a landscape holding scenario, none of the antennas of the device will be held or blocked. If the plurality of antennas are some of the antennas of the electronic device, then in a landscape holding scenario, even if the other antennas of the device are held or blocked, the plurality of antennas can still provide communication capabilities covering multiple directions and multiple frequency bands, thus ensuring that the communication capability of the device is not affected in a landscape holding scenario. Due to the relatively compact installation space inside the electronic device, and from a cost perspective, it is preferable to make the plurality of antennas all the antennas of the electronic device.

[0049] The electronic device provided in this embodiment includes a main body comprising a mid-frame 100, a display screen disposed on one side of the mid-frame 100, and a back cover 200 disposed on the other side of the mid-frame 100. The mid-frame 100, the display screen, and the back cover 200 surround to form a device cavity. Multiple antennas of the electronic device are disposed within the device cavity and located at the top of the horizontal screen of the main body. Therefore, these multiple antennas are not obstructed or held when the electronic device is held horizontally, and their communication quality remains unaffected. Furthermore, these multiple antennas cover multiple frequency bands, thus meeting the communication requirements of multiple frequency bands when the electronic device is held horizontally. The back cover 200 has a radiation hole 201 at a position opposite to the antennas whose radiation direction is towards the back cover 200. The multiple antennas cover at least the radiation directions towards the display screen and towards the back cover 200, thus providing multiple radiation directions when the electronic device is held horizontally, further ensuring communication quality.

[0050] In some embodiments of this disclosure, please refer to the appendix. Figure 2The electronic device in the diagram is in landscape mode, and the diagram shows the internal structure of the device after the display screen has been disassembled; that is, the direction perpendicular to the paper and outwards is the light emission direction of the display screen after assembly. The multiple antennas of the electronic device may include a first antenna 301, a second antenna 302, a third antenna 303, and a fourth antenna 304. The first antenna 301 is integrated with the speaker cavity to save internal space. The second antenna 302, third antenna 303, and fourth antenna 304 are designed close to the camera 500 to save internal space. The first antenna 301 and fourth antenna 304 have the same radiation direction, the second antenna 302 and third antenna 303 have the same radiation direction, and the first antenna 301 and second antenna 302 have different radiation directions; for example, the first antenna 301 and fourth antenna 304 may both radiate towards the display screen, and the second antenna 302 and third antenna 303 may both radiate towards the back cover 200. The first antenna 301 and the second antenna 302 have the same frequency band, the third antenna 303 and the fourth antenna 304 have the same frequency band, and the first antenna 301 and the third antenna 303 have different frequency bands; for example, the first antenna 301 and the second antenna 302 have a frequency band of 2.4G, and the third antenna 303 and the fourth antenna 304 have a frequency band of 5G.

[0051] Please refer to the appendix. Figure 3 Appendix Figure 4 and attached Figure 5 , attached Figure 3 An exemplary schematic diagram of the installation of the first antenna 301 within an electronic device is shown, with attached... Figure 4 An exemplary schematic diagram of the structure of the first antenna 301 is shown, with appendix. Figure 5 An exploded view of the structure of the first antenna 301 is shown as an example. Figure 3 The device is in portrait mode, and the electronic device shows a schematic diagram of the internal structure of the screen after disassembly, that is, the direction perpendicular to the paper and outward is the light emission direction of the screen after assembly.

[0052] The electronic device includes a speaker. The first antenna 301 includes an antenna body 3011 and an insulating support shell; the antenna body 3011 has a flange 3012 at a portion of its circumferential edge, the flange 3012 being connected to the back cover 200 to form an antenna cavity between the antenna body 3011 and the back cover 200; the insulating support shell is disposed within the antenna cavity, the insulating support shell abutting against the antenna body 3011 and the back cover respectively, and the insulating support shell having an insulating cavity inside; the speaker is disposed within the insulating cavity.

[0053] The flange 3012 of the antenna body 3011 can be electrically connected to the back cover 200 via a spring, metal foam, etc., thereby forming an antenna cavity between the antenna body 3011, the flange 3012, and the back cover 200. The antenna body 3011 is connected to the radio frequency module for power feeding. The power feeding current generates electromagnetic signals within the antenna cavity. These electromagnetic signals are radiated outward through the opening of the antenna cavity or absorbed inward through the opening of the antenna cavity. The opening of the antenna cavity refers to the gap between the edge of the antenna body 3011 without the flange 3012 and the back cover 200.

[0054] The first antenna 301 is located near the middle frame 100. The antenna body 3011 does not have a flange 3012 at its edge opposite to the middle frame 100. The insulating support shell has an opening opposite to the middle frame 100, and the middle frame 100 has a sound outlet at its position opposite to the opening. That is, the antenna cavity of the first antenna 301 has an opening near and towards the middle frame 100, allowing electromagnetic signals to radiate outwards through the opening and further towards the display screen through the gap between the antenna cavity and the middle frame 100. Since the display screen has a black border (i.e., no conductive structure, and is made of insulating material) at the connection point with the middle frame 100, electromagnetic signals can further radiate outwards through the black border. Receiving electromagnetic signals is the reverse direction of transmitting electromagnetic signals, which will not be elaborated here.

[0055] Preferably, the first antenna 301 is located at the bottom of the vertical screen of the device body; the antenna body 3011 does not have flanges 3012 at its edges opposite to the top of the horizontal screen and the bottom of the vertical screen of the mid-frame 100. The antenna body 3011 is located at the upper right corner of the electronic device in the horizontal screen state, and its upper and right edges are both open to form an antenna cavity, so that electromagnetic signals can be radiated outward from these two directions, thereby reducing the impact of electromagnetic radiation on the speaker inside the antenna cavity. In this preferred example, the first antenna 301 is integrated with the speaker and located at the bottom of the vertical screen of the device body, that is, on one side of the charging interface 400, so that the sound output effect of the speaker and the communication quality of the first antenna 301 can be guaranteed simultaneously in scenarios such as holding the device in the horizontal screen.

[0056] Please continue to refer to the appendix. Figure 5 The insulating support shell includes a shell body 3013 and a shell cover 3014. The shell cover 3014 closes the shell body 3013 from above to form an insulating cavity between them. The loudspeaker may include a device body 701, a sound cavity upper cover 702, and a sound cavity lower cover 703. The sound cavity upper cover 702 and the sound cavity lower cover 703 respectively seal the device from above and below the device body 701 to form a sound cavity within the device, thereby enabling the loudspeaker to produce sound. In addition, a dustproof mesh 600 may be provided at the opening of the insulating support shell to prevent dust from entering the insulating cavity.

[0057] In this embodiment, the first antenna 301 is integrated with the cavity of the speaker, reusing space while ensuring the speaker's sound quality and the communication quality of the first antenna 301, and saving installation space within the device.

[0058] Please refer to the appendix. Figure 6 The diagram illustrates, for example, a second antenna 302, a third antenna 303, and a fourth antenna 304. The electronic device is in landscape mode, and the diagram shows the internal structure of the device after the display screen has been disassembled; the direction perpendicular to the paper and outwards is the light-emitting direction of the assembled display screen. The electronic device includes a camera 500; the second antenna 302, third antenna 303, and fourth antenna 304 are arranged sequentially away from the camera 500; the back cover 200 has a radiation hole 201 opposite to the second antenna 302 and the third antenna 303, and a camera hole 202 opposite to the camera 500. It should be understood that both the camera hole 202 and the radiation hole 201 are provided with insulating decorative covers to seal the device cavity and ensure aesthetics.

[0059] The second antenna 302 and the third antenna 303 can be FPC antennas. The second antenna 302 is an integrated structure, while the third antenna 303 is a split structure, including a main body 3031 and a radiator 3032. The main body 3031 is used for power supply and electromagnetic radiation, and excites the radiator 3032 to perform electromagnetic radiation. The fourth antenna 304 can be a cavity antenna. The fourth antenna 304 forms an antenna cavity with the back cover 200. The cavity has an opening facing the middle frame 100, so that the electromagnetic signals in the antenna cavity are radiated outward through the opening and the black border of the display screen in sequence. This is similar to the radiation path of the first antenna 301, and will not be described again.

[0060] For example, the direction of the feed current on the second antenna 302 is perpendicular to the direction of the feed current on the third antenna 303; the direction of the feed current on the third antenna 303 is perpendicular to the direction of the feed current on the fourth antenna 304. The direction of the feed current of the second antenna 302 can be controlled by selecting the positions of its feed point and ground point; the direction of the feed current of the third antenna 303 can be controlled by selecting the positions of its feed point and ground point; and the direction of the feed current of the fourth antenna 304 can be controlled by selecting the positions of its feed point and ground point. (Appendix) Figure 6 The direction of the feed current to the second antenna 302 can be from right to left. Figure 6 The feed current direction of the main body 3031 of the third antenna 303 can be from the top to the bottom. Figure 6 The direction of the feed current of the main body 3031 of the fourth antenna 304 can be from the left end to the right end.

[0061] The second antenna 302 and the third antenna 303 are adjacent to each other, but by designing their routing as an orthogonal layout, their feed current directions can be made perpendicular and 90° phase orthogonal, thereby reducing electromagnetic interference between them and ensuring their communication quality.

[0062] The third antenna 303 and the fourth antenna 304 are adjacent and operate in the same frequency band, so electromagnetic interference between them needs to be isolated. This example uses an orthogonal layout for their traces, ensuring that their feed currents are perpendicular and 90° phase-orthogonal, thereby reducing electromagnetic interference and ensuring communication quality.

[0063] For example, the direction of the feed current on the second antenna 302 is parallel to the arrangement direction of the second antenna 302 and the third antenna 303; the current value of the feed current at the end of the second antenna 302 closer to the third antenna 303 is less than the current value of the feed current at the end of the second antenna 302 farther from the third antenna 303.

[0064] By structurally designing the second antenna 302 to change its resistance values ​​at different locations, the feed current at the end closer to the third antenna 303 can be made less than the feed current at the end farther from the third antenna 303. For example, by making the feed point of the second antenna 302 closer to the third antenna 303 and the grounding point of the second antenna 302 farther from the third antenna 303, the aforementioned current difference can be achieved, ensuring that the feed current at the end of the second antenna 302 closer to the third antenna 303 is less than the feed current at the end farther from the third antenna 303.

[0065] The higher the current value, the stronger the electromagnetic signal and the greater its impact on the surrounding magnetic field environment; conversely, the lower the current value, the weaker the electromagnetic signal and the smaller its impact on the surrounding magnetic field environment. Since the current value at the end of the second antenna 302 closest to the third antenna 303 is relatively small, its electromagnetic signal has a smaller impact on the third antenna 303, thereby further improving the isolation between the second antenna 302 and the third antenna 303 and enhancing their communication quality.

[0066] The end with the smaller current value is placed closer to the third antenna 303, or the feed point is placed closer to the third antenna 303; this can be called a head-to-head design. The end with the larger current value is placed closer to the third antenna 303, or the ground point is placed closer to the third antenna 303; this can be called an H2H noslot design. Please refer to the appendix. Figure 6The example demonstrates the 5G isolation between the second antenna 302 and the third antenna 303 under the two designs described above. Compared to the H2Hnoslot design, the Head2head design can improve the isolation by more than 5dB.

[0067] For example, the second antenna 302 is connected to the metal ground of the display screen through the first grounding element and the second grounding element respectively; the third antenna 303 is connected to the metal ground of the display screen through the second grounding element and the third grounding element respectively; and the fourth antenna 304 is connected to the ground of the back cover 200 through at least one grounding element.

[0068] For example, the grounding element can be a metal dome or metal foam. The metal ground of the display screen can be the metal casing of the display screen, i.e., the metal structure used to connect the display screen to the middle frame 100.

[0069] The second antenna 302 and the third antenna 303 each have separate grounding elements, allowing them to return to ground independently. This isolates the grounding currents of the two antennas, further enhancing their electromagnetic signal isolation and improving communication quality. The third antenna 303 and the fourth antenna 304 are connected to the metal ground of the display screen and the ground of the back cover 200, respectively, with different grounding paths, further improving their electromagnetic signal isolation.

[0070] For example, a signal isolation element is provided between the third antenna 303 and the fourth antenna 304. For instance, metal foam can be used to isolate the signals between them. Preferably, the antenna cavity of the fourth antenna 304 is closed in the direction facing the third antenna 303, i.e., without an opening, and the end of the antenna cavity facing the third antenna 303 is connected to the back cover 200 through metal foam 3041, so that there is no gap between the antenna cavity and the third antenna 303, and their electromagnetic signals are isolated and cannot interfere with each other.

[0071] In this embodiment, three antennas, namely antenna 302, antenna 303 and antenna 304, are set near the camera 500. The adjacent antennas are isolated from each other by means of orthogonal current direction, head-to-head design, independent grounding and isolation elements, so as to avoid mutual interference between adjacent antennas, improve the communication command of each antenna, and enable the three antennas to achieve high isolation and communication quality in a small space.

[0072] Please refer to the appendix. Figure 7 The diagram illustrates, for example, the block diagram of the electronic device. For instance, device 700 could be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0073] Reference Figure 7The device 700 may include one or more of the following components: a processing component 702, a memory 704, a power supply component 706, a multimedia component 708, an audio component 710, an input / output (I / O) interface 712, a sensor component 714, and a communication component 716.

[0074] Processing component 702 typically controls the overall operation of device 700, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 702 may include one or more processors 720 to execute instructions. Furthermore, processing component 702 may include one or more modules to facilitate interaction between processing component 702 and other components. For example, processing component 702 may include a multimedia module to facilitate interaction between multimedia component 708 and processing component 702.

[0075] Memory 704 is configured to store various types of data to support the operation of device 700. Examples of this data include instructions for any application or method operating on device 700, contact data, phonebook data, messages, pictures, videos, etc. Memory 704 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0076] The power supply component 706 provides power to the various components of the device 700. The power supply component 706 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 700.

[0077] Multimedia component 708 includes a screen that provides an output interface between the device 700 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 708 includes a front-facing camera and / or a rear-facing camera. When the device 700 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0078] Audio component 710 is configured to output and / or input audio signals. For example, audio component 710 includes a microphone (MIC) configured to receive external audio signals when device 700 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 704 or transmitted via communication component 716. In some embodiments, audio component 710 also includes a speaker for outputting audio signals.

[0079] I / O interface 712 provides an interface between processing component 702 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0080] Sensor assembly 714 includes one or more sensors for providing state assessments of various aspects of device 700. For example, sensor assembly 714 may detect the on / off state of device 700, the relative positioning of components such as the display and keypad of device 700, changes in the position of device 700 or a component of device 700, the presence or absence of user contact with device 700, the orientation or acceleration / deceleration of device 700, and temperature changes of device 700. Sensor assembly 714 may also include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 714 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 714 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0081] Communication component 716 is configured to facilitate wired or wireless communication between device 700 and other devices. Device 700 can access wireless networks based on communication standards, such as WiFi, 2G or 3G, 4G or 5G, or combinations thereof. In one exemplary embodiment, communication component 716 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 716 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0082] In an exemplary embodiment, device 700 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the functions of the aforementioned electronic device.

[0083] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0084] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An electronic device, characterized in that, The electronic device includes: The main body of the device includes a middle frame, a display screen disposed on one side of the middle frame, and a back cover disposed on the other side of the middle frame, wherein the middle frame, the display screen, and the back cover surround to form a device cavity; Multiple antennas are disposed within the device cavity and located at the top of the horizontal screen of the device body, and cover multiple frequency bands and / or multiple radiation directions, including those towards the display screen and towards the back cover; The back cover has a radiation hole at a position opposite to the antenna whose radiation direction is towards the back cover.

2. The electronic device according to claim 1, characterized in that, Of the plurality of antennas, at least two antennas whose radiation direction is toward the back cover include at least one 2.4 GHz antenna and at least one 5 GHz antenna; Of the plurality of antennas, at least two antennas whose radiation direction is toward the display screen include at least one 2.4G band antenna and at least one 5G band antenna.

3. The electronic device according to claim 1, characterized in that, The electronic device includes a speaker, and the plurality of antennas includes a first antenna; The first antenna includes an antenna body and an insulating support shell; the antenna body has a flange at a portion of its circumferential edge, the flange being connected to the back cover to form an antenna cavity between the antenna body and the back cover; the insulating support shell is disposed within the antenna cavity, the insulating support shell abutting against the antenna body and the back cover respectively, and the insulating support shell having an insulating cavity inside; The loudspeaker is located inside the insulating cavity.

4. The electronic device according to claim 3, characterized in that, The first antenna is located near the middle frame, and the antenna body does not have a flange at the edge opposite to the middle frame; the insulating support shell has an opening at the position opposite to the middle frame, and the middle frame has a sound outlet at the position opposite to the opening.

5. The electronic device according to claim 4, characterized in that, The first antenna is located at the bottom of the vertical screen of the main body of the device; The antenna body does not have a flange at the edges opposite to the top horizontal screen and bottom vertical screen of the middle frame.

6. The electronic device according to claim 1, characterized in that, The electronic device includes a camera; the plurality of antennas include a second antenna, a third antenna, and a fourth antenna arranged sequentially in a direction away from the camera; The second antenna and the third antenna radiate towards the back cover; the radiation holes on the back cover opposite to the second antenna and the third antenna are adjacent to the camera hole opposite to the camera. The fourth antenna radiates towards the display screen; The second antenna and the third antenna operate in different frequency bands, while the third antenna and the fourth antenna operate in the same frequency band.

7. The electronic device according to claim 6, characterized in that, The direction of the feed current on the second antenna is perpendicular to the direction of the feed current on the third antenna; The direction of the feed current on the third antenna is perpendicular to the direction of the feed current on the fourth antenna.

8. The electronic device according to claim 6, characterized in that, The direction of the feed current on the second antenna is parallel to the arrangement direction of the second antenna and the third antenna; The current value of the feed current at the end of the second antenna closer to the third antenna is less than the current value of the feed current at the end of the second antenna farther from the third antenna.

9. The electronic device according to claim 6, characterized in that, The second antenna is connected to the metal ground of the display screen through the first grounding element and the second grounding element, respectively; the third antenna is connected to the metal ground of the display screen through the second grounding element and the third grounding element, respectively. The fourth antenna is connected to the metal ground of the back cover via at least one grounding element.

10. The electronic device according to claim 6, characterized in that, A signal isolation element is provided between the third antenna and the fourth antenna.