Antenna and electronic device
By forming a cavity by enclosing the battery compartment and the side wall of the metal frame housing, and using metal connectors to improve sealing, the antenna is placed on the side, which solves the problem of deteriorating WiFi antenna performance when holding a metal frame phone horizontally, improving signal stability and reducing costs.
Patent Information
- Application Number
- CN202310955331.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-31
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2043-07-31
AI Technical Summary
In metal-framed phones, the performance of WiFi antennas deteriorates when playing games in landscape mode, and existing solutions have failed to effectively solve the signal lag problem.
By enclosing the battery compartment in the metal frame housing with the side wall of the frame to form an open cavity, the airtightness of the cavity is improved by using metal connectors, and the antenna is placed on the side of the electronic device to reduce the impact of hand grip.
The antenna performance has been improved, reducing lag when playing games in landscape mode, enhancing the antenna's sealing and structural strength, and reducing costs and mass production risks.
Smart Images

Figure CN119447794B_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of antenna design technology, and more particularly to an antenna and electronic device. Background Technology
[0002] As mobile phone performance continues to improve, more and more people prefer to play games on their phones. Some games have high requirements for network stability. In the current antenna solutions for metal frame mobile phones, the WiFi antenna is basically placed at the top corner. Although the antenna clearance environment is better at that position, users often play games in landscape mode. When playing games, their hands will hold the WiFi antenna, which will cause the WiFi antenna to deteriorate in performance and cause lag when playing games over WiFi.
[0003] Existing solutions mostly involve changing the location of the gap to prevent the hand from gripping the gap and causing a sharp drop in performance. However, this method still cannot avoid the problem of signal degradation caused by gripping the hand when playing games in landscape mode. Summary of the Invention
[0004] This disclosure provides an antenna and an electronic device to address the shortcomings of related technologies.
[0005] In a first aspect, embodiments of this disclosure provide an antenna, comprising: a metal frame housing, the metal frame housing including a frame sidewall and a battery compartment, the battery compartment including a battery compartment wall, the frame sidewall having a slit, the battery compartment wall and the frame sidewall being spaced apart, and at least one metal connector being provided between the battery compartment wall and the frame sidewall;
[0006] The middle frame sidewall, the battery compartment wall, and the at least one metal connector enclose a cavity with an opening.
[0007] Optionally, the battery compartment further includes a battery compartment body, with the battery compartment wall surrounding the periphery of the battery compartment body.
[0008] Optionally, at least one of the metal connectors includes a first metal connector and a second metal connector, wherein the first metal connector and the second metal connector are spaced apart between the battery compartment wall and the middle frame sidewall along the length direction of the middle frame sidewall;
[0009] The cavity is formed by the middle frame sidewall, the battery compartment wall, the first metal connector, and the second metal connector.
[0010] Optionally, at least one of the metal connectors further includes a third metal connector, which connects from the front of the metal frame housing to the side wall of the frame, the battery compartment wall, the first metal connector, and the second metal connector; the side wall of the frame, the battery compartment wall, the first metal connector, the second metal connector, and the third metal connector together form the cavity, the opening of the cavity facing the back of the metal frame housing; and / or
[0011] The opening size of the cavity can be changed by adjusting the distance between the first metal connector and the second metal connector.
[0012] Optionally, the middle frame sidewall, the battery compartment, and the at least one metal connector are integrally formed.
[0013] Optionally, the sidewall of the middle frame and the battery compartment are integrally formed.
[0014] Optionally, it also includes a circuit board mounted on the metal frame housing and electrically connected to the metal frame housing.
[0015] Optionally, the circuit board is provided with a metal conductive component, which is in contact with the metal mid-frame housing; the antenna is fed by the metal conductive component, and the metal mid-frame housing serves as the grounding point of the antenna.
[0016] Optionally, the metal conductive element is disposed on the circuit board near the battery compartment.
[0017] In a second aspect, embodiments of this disclosure provide an electronic device including the antenna described in the first aspect.
[0018] Optionally, it also includes a back cover and a display screen, the back cover being disposed on the back of the metal frame housing and the display screen being disposed on the front of the metal frame housing.
[0019] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:
[0020] As can be seen from the above embodiments, the antenna of this disclosure forms an open cavity by enclosing the battery compartment and the mid-frame housing. This open cavity reduces the risk of uncertain electrical connections and maintains the sealing of the cavity, thereby increasing the overall performance of the antenna cavity, improving antenna performance, and reducing cost and mass production risks. When applied to electronic devices, the antenna can be located on the long side of the device, making it less likely for the user to hold the antenna in the cavity when playing games in landscape mode. This improves antenna performance and signal strength when playing games in landscape mode and reduces lag.
[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0022] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.
[0023] Figure 1 This is a partial schematic diagram of the interior of an electronic device after the back cover has been removed, according to an exemplary embodiment.
[0024] Figure 2 This is an enlarged schematic diagram of an electronic device at the antenna location according to an exemplary embodiment.
[0025] Figure 3 This is an enlarged schematic diagram of an electronic device at the antenna location from another perspective, according to an exemplary embodiment.
[0026] Figure 4 This is a partially exploded schematic diagram of an electronic device at the antenna location according to an exemplary embodiment. Detailed Implementation
[0027] 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.
[0028] 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.
[0029] To facilitate understanding of the technical solutions of this disclosure, the antenna and electronic equipment of this disclosure will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features in the following embodiments and implementations can be combined with each other.
[0030] See Figure 1As shown, this disclosure provides an electronic device, which may be, for example, a mobile phone, tablet computer, laptop computer, wearable device, smart bracelet, smartwatch, smart glasses, or other electronic products. The electronic device may include a display screen, a back cover, a metal frame housing 10, and an antenna. The display screen is mounted on the front of the metal frame housing 10, and the back cover is mounted on the back of the metal frame housing 10.
[0031] See Figures 1 to 4 As shown, the antenna may include a metal frame housing 10, which includes a frame sidewall 11 and a battery compartment 12. The battery compartment 12 includes a battery compartment wall 122. The frame sidewall 11 has a slit, and the battery compartment wall 122 and the frame sidewall 11 are spaced apart. At least one metal connector is provided between the battery compartment wall 122 and the frame sidewall 11. The frame sidewall 11, the battery compartment wall 122, and the at least one metal connector enclose a cavity 21 with an opening 20. That is, at least a portion of the metal frame housing 10 can be used to form an antenna for an electronic device, and the metal connector can improve the sealing of the cavity antenna. When the antenna is applied to an electronic device, the battery compartment 12 can be used to house the battery of the electronic device. It is understood that... Figure 1 This is a partial schematic diagram of the interior of the electronic device after the back cover is removed. The back cover, when closed, seals the opening 20 of the cavity 21. The metal frame housing 10 includes a frame body and frame sidewalls 11 surrounding the frame body. A battery compartment 12 is formed on the frame body. Optionally, the frame sidewalls 11 and the battery compartment 12 can be made of the same metal material and integrally formed for ease of processing.
[0032] As can be seen from the above embodiments, the antenna of this disclosure forms a cavity 21 with an opening 20 by the battery compartment 12 of the metal frame housing 10 and the side wall 11 of the frame, thereby constituting a cavity antenna with an opening 20 (e.g., Figure 3 As shown within the frame (as indicated), this design reduces the risk of uncertain electrical connections and maintains the airtightness of cavity 21, thereby increasing the overall performance of the cavity antenna, improving antenna performance, and reducing cost and mass production risks. When applied to electronic devices, the antenna can be located on the side of the device rather than at the top or bottom corner. This cavity antenna eliminates concerns about the clearance between the sidewall of the frame (which can be understood as a suspended metal) and the frame body, preventing users from easily gripping the antenna when playing games in landscape mode. This improves antenna performance and signal strength during landscape gaming and reduces stuttering.
[0033] In some alternative embodiments, the battery compartment 12 further includes a battery compartment body 121, with battery compartment walls 122 surrounding the periphery of the battery compartment body 121. It is understood that the battery compartment body 121 is used to accommodate the battery of the electronic device, and the outer wall of the battery compartment wall 122 and the inner wall of the middle frame side wall 11 enclose the cavity 21.
[0034] Furthermore, the battery compartment wall 122 and the middle frame side wall 11 are spaced apart. To improve the sealing of the cavity antenna, at least one metal connector can be provided between the battery compartment wall 122 and the middle frame side wall 11. The middle frame side wall 11, the battery compartment wall 122, and the at least one metal connector enclose and form a cavity 21. In this way, the sealing of the cavity 21 can be improved by the cooperation of the metal connector with the middle frame side wall 11 and the battery compartment wall 122, thereby improving the antenna performance.
[0035] In one embodiment, at least one metal connector includes a first metal connector 31 and a second metal connector 32, which are spaced apart along the length of the middle frame sidewall 11 between the battery compartment wall 122 and the middle frame sidewall 11. The middle frame sidewall 11, the battery compartment wall 122, the first metal connector 31, and the second metal connector 32 enclose a cavity 21. This forms a rectangular cavity antenna that is closed on four sides and open on two sides, improving the sealing of the cavity 21 and thus enhancing antenna performance.
[0036] In another embodiment, in addition to the first metal connector 31 and the second metal connector 32, at least one metal connector may further include a third metal connector. The third metal connector connects from the front of the metal frame housing 10 to the side wall 11 of the frame, the battery compartment wall 122, the first metal connector 31, and the second metal connector 32. The side wall 11 of the frame, the battery compartment wall 122, the first metal connector 31, the second metal connector 32, and the third metal connector together form a cavity 21. The opening 20 of the cavity 21 faces the back of the metal frame housing 10, i.e., towards the rear cover. This forms a rectangular cavity antenna that is closed on five sides and open on one side, which improves the sealing and structural strength of the cavity 21, and also solves the performance degradation caused by hand handling while strengthening the structure, thereby improving antenna performance.
[0037] It should be noted that the size of the cavity opening, the cavity dimensions, and the antenna position can be changed by adjusting the spacing between the first metal connector 31 and the second metal connector 32, as well as setting the dielectric constant of the metal material. This allows for the adjustment of the antenna size, position, and frequency band. For example, by making the spacing between the first metal connector 31 and the second metal connector 32 as long as possible and placing it in the middle position between the top and bottom sides of the electronic device, the cavity antenna can generate a GPS+WiFi 2.4G resonant frequency, effectively preventing antenna performance degradation due to hand grip.
[0038] Optionally, the middle frame sidewall 11, battery compartment 12, and at least one metal connector can be made of the same metal material and integrally formed. That is, the middle frame sidewall 11, battery compartment 12, first metal connector 31, second metal connector 32, and third metal connector can be made of the same metal material and integrally formed, which is convenient for processing and forming.
[0039] In some alternative embodiments, the antenna may further include a circuit board 40, mounted on and electrically connected to the metal frame housing 10. It is understood that the circuit board 40 may be a printed circuit board (PCB), which can be used to feed the cavity antenna. The circuit board 40 can be connected to the metal frame housing 10 by means of screws or other methods. The display screen and the circuit board 40 can be electrically connected via conductive components such as missile foam or spring clips.
[0040] Optionally, the circuit board 40 is provided with a metal conductive element 41, which is in contact with the metal mid-frame housing 10. The metal conductive element 41 can be gold-plated conductive foam, conductive silicone, conductive cloth, or a metal spring soldered to the circuit board 40, etc. In this way, the cavity antenna with an opening is formed by the mid-frame sidewall and the battery compartment wall, and the antenna is fed by the metal conductive element 41 on the side of the circuit board 40.
[0041] Understandably, the metal frame housing 10 itself can serve as the grounding point of the cavity antenna. The metal conductive component 41 can be placed on the circuit board 40 near the battery compartment 12, so that the feed point is as close as possible to the radiating body of the cavity antenna at the end of the cavity. This allows the grounding point to be closer to the feed point, achieving a shorter conductive path.
[0042] 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.
[0043] 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 antenna, characterized in that, include: A metal frame housing and a circuit board, wherein the metal frame housing includes a frame sidewall and a battery compartment, the battery compartment includes a battery compartment wall, the frame sidewall is provided with a slit, the battery compartment wall and the frame sidewall are spaced apart, and at least one metal connector is provided between the battery compartment wall and the frame sidewall; The middle frame sidewall, the battery compartment wall, and the at least one metal connector enclose a cavity with an opening, thereby constituting a cavity antenna with an opening. The at least one metal connector includes a first metal connector and a second metal connector, which are spaced apart along the length of the middle frame sidewall between the battery compartment wall and the middle frame sidewall; the middle frame sidewall, the battery compartment wall, the first metal connector, and the second metal connector enclose the cavity; The circuit board is provided with a metal conductive component, which is in contact with the metal frame housing; the antenna is fed by the metal conductive component, and the metal frame housing serves as the grounding point of the antenna.
2. The antenna according to claim 1, characterized in that, The battery compartment also includes a battery compartment body, and the battery compartment wall surrounds the periphery of the battery compartment body.
3. The antenna according to claim 1, characterized in that, The at least one metal connector further includes a third metal connector, which connects from the front of the metal frame housing to the side wall of the frame, the battery compartment wall, the first metal connector, and the second metal connector; the side wall of the frame, the battery compartment wall, the first metal connector, the second metal connector, and the third metal connector enclose the cavity, the opening of the cavity facing the back of the metal frame housing; and / or The opening size of the cavity can be changed by adjusting the distance between the first metal connector and the second metal connector.
4. The antenna according to claim 1, characterized in that, The middle frame sidewall, the battery compartment, and the at least one metal connector are integrally formed.
5. The antenna according to claim 1, characterized in that, The middle frame sidewall and the battery compartment are integrally formed.
6. The antenna according to claim 1, characterized in that, The circuit board is mounted on the metal frame housing and is electrically connected to the metal frame housing.
7. The antenna according to claim 1, characterized in that, The metal conductive component is disposed on the circuit board near the battery compartment.
8. An electronic device, characterized in that, The antenna includes any one of claims 1 to 7.
9. The electronic device according to claim 8, characterized in that, It also includes a back cover and a display screen, the back cover being disposed on the back of the metal frame housing, and the display screen being disposed on the front of the metal frame housing.
Citation Information
Patent Citations
Antenna and electronic equipment
CN116315644A
Self-decoupled compact cavity antenna
US20220320744A1