Electronic device
By adjusting the grounding position of the metal structure of the functional components in electronic devices, an equivalent antenna with different polarization directions is formed, the interference problem of metal devices on the antenna performance is solved, and the radiation performance and structural simplification of the antenna are improved.
Patent Information
- Application Number
- CN202422076715.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The existence of metal devices in electronic devices affects the performance of antennas and the functional implementation of functional components, resulting in interference and clutter problems.
By adjusting the grounding position of the metal structure in the functional components and using the auxiliary section between the end of the metal structure and the grounding structure as an equivalent antenna, an equivalent antenna with different polarization directions is formed to avoid interference of the metal structure with the center frame antenna.
Improves the radiation performance of the midframe antenna in other directions, simplifies structural settings, and avoids additional space occupation and performance interference.
Smart Images
Figure CN223079357U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of electronic technologies, and in particular, to electronic devices. Background Art
[0002] In related technologies, an electronic device usually uses a metal middle frame as an antenna to achieve an expected antenna function. However, in addition to the middle frame serving as an antenna, the functional components of the electronic device also include many other metal devices. The metal devices may generate clutter in the electronic device and affect the antenna performance, and the middle frame antenna may also interfere with the function implementation of the functional components including the above metal devices due to the interaction with the metal devices. Summary of the Utility Model
[0003] The present disclosure provides an electronic device to solve the related technical problems.
[0004] According to an embodiment of the present disclosure, an electronic device is provided, including:
[0005] A middle frame antenna having a first polarization direction;
[0006] A functional component, the functional component includes a metal structure with an open end and a grounding structure connecting the metal structure to the metal ground of the electronic device; the metal structure includes an auxiliary section located between the end of the metal structure and the grounding structure, and the auxiliary section is coupled to the middle frame antenna to serve as an equivalent antenna; wherein, the equivalent antenna has a second polarization direction different from the first polarization direction.
[0007] Optionally, the functional component includes a screen; one end of the screen close to the middle frame antenna is the end of the metal structure.
[0008] Optionally, the grounding structure includes a grounding foam; the grounding foam is located on the side of the screen facing the inside of the electronic device, and the grounding foam is electrically connected to the metal structure of the screen and the metal ground respectively.
[0009] Optionally, the metal structure of the screen includes at least two auxiliary sections, and each auxiliary section is coupled to the middle frame antenna to form at least two equivalent antennas.
[0010] Optionally, the polarization directions of at least two equivalent antennas are different.
[0011] Optionally, the functional component includes a camera decoration, and the metal part of the camera decoration serves as the metal structure.
[0012] Optionally, the electronic device includes a main board, a rear cover, and a reinforcing bracket disposed between the main board and the rear cover; the functional component includes the reinforcing bracket, and the metal portion of the reinforcing bracket serves as the metal structure.
[0013] Optionally, the metal structure of the reinforcing bracket includes at least two of the auxiliary sections, and each of the auxiliary sections is respectively coupled to the middle frame antenna to form at least two of the equivalent antennas.
[0014] Optionally, the middle frame antenna includes a first frequency band, and the radiation frequency of the first frequency band is greater than 3 GHz; the auxiliary section is coupled to the middle frame antenna of the first frequency band to serve as an equivalent antenna.
[0015] Optionally, the electronic device further includes a rear cover, and the second polarization direction is perpendicular to the rear cover.
[0016] The technical solution provided by the present disclosure can at least achieve the following beneficial effects:
[0017] By adjusting the grounding position of the metal structure in the functional component and using the auxiliary section between the end of the metal structure and the grounding structure as an equivalent antenna, the electronic device of the present disclosure not only avoids the interference of the metal structure of the functional component on the middle frame antenna, but also the equivalent antenna has a second polarization direction different from the first polarization direction of the middle frame antenna. Therefore, it also helps to improve the antenna radiation performance of the middle frame in other directions.
[0018] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this specification. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present specification, and are used together with the specification to explain the principles of the present specification.
[0020] Figure 1 is a partial perspective structural schematic diagram of an electronic device in an exemplary embodiment of the present disclosure;
[0021] Figure 2 is Figure 1 the current mode diagram of the equivalent antenna in;
[0022] Figure 3 is a partial perspective structural schematic diagram of an electronic device in another exemplary embodiment of the present disclosure;
[0023] Figure 4 is Figure 3 the current mode diagram of the equivalent antenna in;
[0024] Figure 5It is the antenna efficiency diagram when the grounding structure of an electronic device in an exemplary embodiment of the present disclosure is in the first position;
[0025] Figure 6 It is the Figure 5 corresponding radiation pattern;
[0026] Figure 7 It is the antenna efficiency diagram when the grounding structure of an electronic device in an exemplary embodiment of the present disclosure is in the second position;
[0027] Figure 8 It is the Figure 7 corresponding radiation pattern;
[0028] Figure 9 It is the antenna efficiency diagram when the grounding structure of an electronic device in an exemplary embodiment of the present disclosure is in the third position;
[0029] Figure 10 It is the Figure 9 corresponding radiation pattern. Detailed implementation mode
[0030] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all the implementation manners consistent with this specification. On the contrary, they are only examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.
[0031] The terms used in this disclosure are only for the purpose of describing specific embodiments and are not intended to limit this disclosure. Unless otherwise defined, the technical terms or scientific terms used in this specification should have the ordinary meanings understood by those of ordinary skill in the art to which this disclosure belongs. The "first", "second" and similar terms used in this specification and the claims do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "an" do not represent a quantity limitation, but mean the existence of one. "Multiple" or "several" means two or more. Unless otherwise indicated, the similar terms such as "front part", "rear part", "lower part" and / or "upper part" are only for convenience of description and are not limited to one position or a spatial orientation. The terms such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. The terms such as "connect" or "couple" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect.
[0032] The terms used in this specification are for the purpose of describing particular embodiments only and are not intended to limit the present disclosure. The singular forms "a", "the", and "said" used in this specification and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0033] In the related art, electronic devices typically use a metal middle frame as an antenna to achieve the desired antenna function. However, in addition to the middle frame acting as an antenna, the functional components of the electronic device also include many other metal devices. These metal devices may generate clutter in the electronic device and affect the antenna performance, and the middle frame antenna may also interfere with the function implementation of the functional components containing the above metal devices due to the interaction with the metal devices.
[0034] The present disclosure provides an electronic device. Figure 1 is a partial perspective structural schematic diagram of an electronic device in an exemplary embodiment of the present disclosure, Figure 2 is Figure 1 the current mode diagram of the equivalent antenna in. As Figure 1 , Figure 2 shown, the electronic device 1 includes a middle frame antenna 11 and a functional component 12. The middle frame antenna 11 has a first polarization direction. The functional component 12 includes a metal structure 121 with an open end and a grounding structure 122 connecting the metal structure 121 to the metal ground of the electronic device 1. The metal structure 121 includes an auxiliary section located between the end 1211 of the metal structure 121 and the grounding structure 122. The auxiliary section is coupled to the middle frame antenna 11 to act as an equivalent antenna. Among them, the equivalent antenna has a second polarization direction different from the first polarization direction.
[0035] The above electronic device 1 adjusts the grounding position of the metal structure 121 in the functional component 12 and uses the auxiliary section between the end 1211 of the metal structure 121 and the grounding structure 122 as an equivalent antenna. The above structural arrangement not only avoids the interference of the metal structure 121 of the functional component 12 to the middle frame antenna 11, but also the equivalent antenna has a second polarization direction different from the first polarization direction of the middle frame antenna 11. Therefore, it also helps to improve the antenna radiation performance of the middle frame in other directions.
[0036] It should be noted that the above functional component 12 may be a component in the electronic device 1 that includes a metal structure 121 with an open end, so as to facilitate using a suitable part of the above metal structure 121 as an equivalent antenna. For example, the above functional component 12 may be the screen of the electronic device 1, a camera decoration, or a reinforcing bracket between the main board and the rear cover, etc. The present disclosure does not limit this.
[0037] In some embodiments, the functional component 12 is a screen. The screen includes a metal structure 121, and one end of the screen close to the middle frame antenna 11 is the end 1211 of the metal structure 121. The screen is flexible at the matching position between the whole electronic device 1 and the middle frame antenna 11, can improve the performance for the middle frame antenna 11 in different regions, and can also simplify the structural setting of the equivalent antenna. The grounding structure 122 of the screen itself is used to avoid additional space occupation and performance interference caused by grounding.
[0038] Among them, the above-mentioned metal structure 121 can be a circuit layer inside the screen or other metal structures 121 of the screen, and the present disclosure does not limit this either.
[0039] In the above embodiments, the grounding structure 122 can be a grounding foam. The grounding foam is located on the side of the screen facing the inside of the electronic device 1, and the grounding foam is electrically connected to the metal structure 121 and the metal ground of the screen respectively to achieve grounding of the screen. The grounding method of the grounding foam is simple and has little influence on the screen assembly. The above-mentioned grounding foam can be a block structure and cooperate with a specific area of the screen to improve the grounding reliability.
[0040] From the grounding foam to the end 1211 of the screen, it can be equivalent to a λ / 4 mode current. If the grounding method as shown in Figure 3 、 Figure 4 is selected, it has a greater impact on the performance of the antenna. Because the λ / 4 current mode of the antenna is exactly in equal amplitude and opposite phase to the λ / 4 mode formed by the screen, resulting in an efficiency pit in N77. As shown in Figure 1 、 Figure 2 When the setting position of the grounding foam is adjusted, the direction of the λ / 4 mode current becomes upward, so that the equivalent antenna does not interfere with the performance of the middle frame antenna 11. At the same time, the radiation field direction of the equivalent antenna is perpendicular to the first polarization direction of the middle frame antenna 11, improving the radiation performance in the direction perpendicular to the back cover of the electronic device 1. Taking the electronic device 1 as a mobile phone as an example, this design scheme can be regarded as using the internal structure of the mobile phone to add an equivalent antenna, which can improve the radiation performance of the mobile phone in certain directions in the high-frequency band and has great benefits for some scenarios such as landscape live broadcast.
[0041] As shown in Figures 5 - 10 , multiple grounding positions are selected to investigate the influence on the antenna performance. Using the port to replace the grounding foam for testing, it can be seen that as the position gets closer to the end 1211 of the screen, the resonant length of the λ / 4 mode is shorter and the corresponding frequency is higher. For example:
[0042] When the grounding foam is placed at the first position, the distance from the end 1211 of the screen is 12.9 mm, and the resonant length is the longest. As shown in Figure 5 、 Figure 6As shown in A1, A2, B1, and B2, it can be seen that the N78 radiation performance is improved by 1 dB, and at the same time, the concave points on the rear cover direction pattern are also compensated.
[0043] When the grounding foam is placed in the second position, the distance from the end of the screen to 1211 is 8.9 mm, and the resonant length is adapted to the 5G low channel. As Figure 7 、 Figure 8 As shown in A3, A4, B3, and B4, it can be seen that the corresponding frequency band efficiency improvement is not obvious, but the overall radiation performance in the rear cover direction has an improvement of 2 - 3 dB.
[0044] When the grounding foam is placed in the third position, the distance from the end of the screen to 1211 is 4.9 mm, and the resonant length is adapted to the 5G high channel. As Figure 9 、 Figure 10 As shown in A5, A6, B5, and B6, it can be seen that the corresponding frequency band efficiency improvement is not obvious, but the radiation performance in the rear cover direction also has a certain improvement.
[0045] In some embodiments, the metal structure 121 of the screen includes at least two auxiliary sections, and each auxiliary section can be respectively coupled with the middle frame antenna 11 to form at least two equivalent antennas, so as to improve the performance of the middle frame antenna 11 through the at least two equivalent antennas, and further improve the antenna performance.
[0046] Among them, the polarization directions of the at least two equivalent antennas can be different to improve the radiation performance of the antenna in different polarization directions.
[0047] In some other embodiments, the functional component 12 can be a camera decorative piece, and the metal part of the camera decorative piece is used as the metal structure 121. By using the metal component of the camera decorative piece as the metal structure 121 with an open end, an equivalent antenna for improving the antenna performance can also be formed. Among them, the camera decorative piece can be the deco decorative piece of the rear camera of the electronic device 1.
[0048] In still some other embodiments, the electronic device 1 includes a main board, a rear cover, and a strengthening bracket disposed between the main board and the rear cover. The functional component 12 includes the above-mentioned strengthening bracket, and the metal part of the strengthening bracket is used as the metal structure 121. By using the strengthening bracket as the metal structure 121 with an open end, an equivalent antenna for improving the antenna performance can also be formed.
[0049] Among them, the metal structure 121 of the strengthening bracket can include at least two auxiliary sections, and each auxiliary section is respectively coupled with the middle frame antenna 11 to form at least two equivalent antennas, so as to improve the performance of the middle frame antenna 11 through the at least two equivalent antennas, and further improve the antenna performance.
[0050] In the above embodiments, the middle frame antenna 11 includes a first frequency band, and the radiation frequency of the first frequency band is greater than 3 GHz. The auxiliary section is coupled to the middle frame antenna 11 of the first frequency band to act as an equivalent antenna. The required resonant length determines the grounding position. The grounding position cannot be too far from the end of the metal structure 121, otherwise the grounding is insufficient. If the grounding position is too close to the end of the metal structure 121, it will affect the middle frame antenna 11. Therefore, the designed resonant length can be used for high-frequency bands above 3 GHz to improve the performance of high-frequency bands.
[0051] In the above embodiments, the electronic device 1 further includes a rear cover, and the second polarization direction is perpendicular to the rear cover, so as to improve the antenna radiation performance in the direction perpendicular to the rear cover.
[0052] It should be noted that the above electronic device 1 may be a mobile phone, a tablet computer, a vehicle-mounted terminal, a medical terminal, a wearable device, etc., and the present disclosure does not limit this.
[0053] The above are only the preferred embodiments of the present disclosure, and do not impose any formal restrictions on the present disclosure. Although the present disclosure has been disclosed above in preferred embodiments, it is not intended to limit the present disclosure. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content without departing from the technical solution of the present disclosure. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present disclosure without departing from the content of the technical solution of the present disclosure still fall within the scope of the technical solution of the present disclosure.
Claims
1. An electronic device, characterized in that, Comprising: A middle frame antenna having a first polarization direction; A functional component, the functional component including a metal structure with an open end and a grounding structure connecting the metal structure to the metal ground of the electronic device; the metal structure includes an auxiliary section located between the end of the metal structure and the grounding structure, and the auxiliary section is coupled to the middle frame antenna to act as an equivalent antenna; wherein, the equivalent antenna has a second polarization direction different from the first polarization direction.
2. The electronic device according to claim 1, wherein The functional component includes a screen; one end of the screen close to the middle frame antenna is the end of the metal structure.
3. The electronic device according to claim 2, wherein The grounding structure includes a grounding foam; the grounding foam is located on the side of the screen facing the interior of the electronic device, and the grounding foam is electrically connected to the metal structure of the screen and the metal ground respectively.
4. The electronic device according to claim 2, wherein The metal structure of the screen includes at least two of the auxiliary sections, and each of the auxiliary sections is coupled to the middle frame antenna to form at least two of the equivalent antennas.
5. The electronic device according to claim 4, wherein The polarization directions of at least two of the equivalent antennas are different.
6. The electronic device according to claim 1, wherein The functional component includes a camera decoration piece, and the metal part of the camera decoration piece serves as the metal structure.
7. The electronic device according to claim 1, wherein Comprising a main board, a rear cover and a reinforcing bracket disposed between the main board and the rear cover; the functional component includes the reinforcing bracket, and the metal part of the reinforcing bracket serves as the metal structure.
8. The electronic device according to claim 7, wherein The metal structure of the reinforcing bracket includes at least two of the auxiliary sections, and each of the auxiliary sections is coupled to the middle frame antenna to form at least two of the equivalent antennas.
9. The electronic device according to claim 1, characterized in that, The middle frame antenna includes a first frequency band, and the radiation frequency of the first frequency band is greater than 3 GHz; the auxiliary section is coupled to the middle frame antenna of the first frequency band to act as an equivalent antenna.
10. The electronic device according to claim 1, wherein The electronic device further includes a rear cover, and the second polarization direction is perpendicular to the rear cover.