Antenna assembly and electronic equipment

By introducing a grounding structure between the suspended branches and adjacent branches, the antenna ports in the interval are used to achieve grounding of the suspended branches, the interference problem between the suspended branches and adjacent branches is solved, and the detection adaptability and performance of the antenna are improved.

CN223273505UActive Publication Date: 2025-08-26BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Application Number
CN202422544668.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2025-08-26
Estimated Expiration
2034-10-21

AI Technical Summary

Technical Problem

The lack of back-return tendon position of the suspended branches causes mutual interference with adjacent antennas to affect the antenna efficiency and is difficult to meet the detection needs of SAR Sensor.

Method used

An antenna assembly is designed in which the suspended branches are disconnected from adjacent branches and connected through the first and second parts of the grounding structure, and the grounding of the suspended branches is achieved by using the antenna ports in the interval to form a grounding effect equivalent to the grounding of the reinforcement position.

Benefits of technology

The interference effect between suspended branches and adjacent branches is reduced, taking into account the detection and antenna performance of SAR Sensor, and the overall efficiency of the antenna is improved.

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Abstract

The utility model provides an antenna assembly and electronic equipment. The antenna assembly includes a radiation body and a ground structure. The radiation main body comprises a suspension branch and adjacent branches located on the two sides of the suspension branch, and the suspension branch is disconnected from the adjacent branches. The grounding structure comprises a first part and a second part, the first part is connected with the suspension branch knot, and the second part is connected with the metal ground. The second part is arranged on the periphery of the first part, and a gap is formed between the second part and the first part. And a plurality of antenna ports connected with the first part and the second part are arranged in the interval. According to the grounding structure, the first part and the second part are connected through the antenna interface, so that the suspended branch knot of the radiation main body has a structure condition adaptive to SAR Sensor detection, the grounding structure forms a grounding effect equivalent to rib position grounding, the interference influence between the suspended branch knot and an adjacent branch knot is reduced, and the detection accuracy is improved. Therefore, the SAR Sensor detection and the antenna performance are both considered.
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Description

Technical Field

[0001] The present disclosure relates to the field of antenna technology, and in particular to antenna components and electronic devices. Background Art

[0002] SAR (Specific Absorption Rate) Sensor can be used to detect whether the human body is close to the electronic device, so as to determine whether the power needs to be reduced to reduce radiation to the human body.

[0003] Based on the needs of SAR sensor detection, it is necessary to use the floating branches of the antenna. However, since the floating branches lack ground ribs, the mutual interference between the floating branches and adjacent antennas affects the antenna efficiency. Utility Model Content

[0004] The present disclosure provides an antenna assembly and an electronic device to solve related technical problems.

[0005] A first aspect of the present disclosure provides an antenna assembly, comprising:

[0006] A radiating body, comprising a suspended branch and adjacent branches located on both sides of the suspended branch, wherein the suspended branch is disconnected from the adjacent branches;

[0007] The grounding structure includes a first part and a second part, wherein the first part is connected to the suspended branch, and the second part is connected to the metal ground; the second part is arranged on the periphery of the first part, and a gap is provided between the second part and the first part; a plurality of antenna ports connecting the first part and the second part are provided in the gap.

[0008] Optionally, a first connection position is provided at an end portion of the first part in the length direction of the suspension branch, and the first connection position is connected to the second part via the antenna port.

[0009] Optionally, the second part is provided with a second connection position aligned with the first connection position in the width direction of the suspension branch, and the first connection position and the second connection position are connected through the antenna port.

[0010] Optionally, the first part includes a first body and a second body arranged along the width direction of the suspended branch, the first body is connected to the suspended branch, and the second body is connected to the first body;

[0011] The end portions are arranged at both ends of the first body; the second portion forms a recessed portion, the second body is accommodated in the recessed portion, and at least one antenna port is provided at a spacing within the recessed portion.

[0012] Optionally, the second body comprises a rectangular structure.

[0013] Optionally, the second body includes a bottom wall arranged toward the bottom of the recess and a pair of side walls connecting the bottom wall and the first body, and the bottom wall and / or the side walls are connected to the inner wall of the recess through the antenna port.

[0014] Optionally, a pair of the side walls are provided with a symmetrically arranged third connection position, and the inner wall of the recess is provided with a fourth connection position aligned with the third connection position in the length direction of the suspended branch, and the third connection position and the fourth connection position are connected through the antenna port.

[0015] Optionally, the bottom wall is evenly distributed with fifth connection positions, the recess is provided with a sixth connection position aligned with the fifth connection position in the width direction of the suspension branch, and the fifth connection position and the sixth connection position are connected through the antenna port.

[0016] Optionally, the antenna port includes a connection capacitor.

[0017] According to a second aspect of the present disclosure, an electronic device is provided, comprising: any antenna assembly described in the first aspect.

[0018] The technical solution provided by the present disclosure can achieve at least the following beneficial effects:

[0019] The grounding structure of the suspended branch disclosed herein includes a first portion and a second portion, wherein the second portion is disposed outside the first portion and a gap is provided between the second portion and the first portion, wherein a plurality of antenna ports are provided within the gap, connecting the first portion and the second portion. The grounding structure connects the first portion and the second portion via an antenna interface, not only providing the suspended branch of the radiating body with structural conditions compatible with SAR sensor detection, but also enabling the grounding structure to achieve a grounding effect equivalent to rib-position grounding, thereby reducing interference between the suspended branch and adjacent branches, thereby balancing SAR sensor detection and antenna performance.

[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0022] Figure 1 is a schematic diagram of a partial structure of an electronic device in an exemplary embodiment of the present disclosure;

[0023] Figure 2 This is a WiFi6e efficiency curve corresponding to a suspended branch of an antenna assembly without a grounding structure in an exemplary embodiment of the present disclosure;

[0024] Figure 3 This is a WiFi6e efficiency curve corresponding to different combinations of grounding positions of the antenna port of a grounding structure of a suspended branch of an antenna assembly in an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0025] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with this specification. Rather, they are merely examples of apparatus and methods consistent with certain aspects of this specification, as detailed in the appended claims.

[0026] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. Unless otherwise defined, technical or scientific terms used in this specification should have the same ordinary meaning as those understood by persons of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and similar terms used in this specification and the claims do not denote any order, quantity, or importance, but are simply used to distinguish one component from another. Similarly, terms such as "a" or "an" do not denote a limitation of quantity, but rather indicate the presence of one. "Multiple" or "several" means two or more. Unless otherwise indicated, terms such as "front," "rear," "lower," and / or "upper" are used for convenience only and are not intended to limit the scope of the disclosure to a specific location or spatial orientation. Terms such as "include" or "comprising" mean that the elements or objects listed before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect.

[0027] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. As used in this specification and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates 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.

[0028] SAR (Specific Absorption Rate) sensors can detect the proximity of a person to an electronic device, thereby determining whether power should be reduced to minimize radiation exposure. SAR sensor detection requires the use of suspended antenna branches. However, since these branches lack ground ribs, interference between them and adjacent antennas can affect antenna efficiency.

[0029] The present disclosure provides an antenna assembly. Figure 1 is a partial structural diagram of an electronic device in an exemplary embodiment of the present disclosure, such as Figure 1 As shown, Figure 1 The dashed arrow in the middle represents the length direction of the suspended branch, and the dashed arrow represents the width direction of the suspended branch. The antenna assembly 1 includes a radiating body 11 and a grounding structure 12. The radiating body 11 includes a suspended branch 111 and adjacent branches 112 located on both sides of the suspended branch 111, and the suspended branch 111 is disconnected from the adjacent branches 112. The grounding structure 12 includes a first portion 121 and a second portion 122. The first portion 121 is connected to the suspended branch 111, and the second portion 122 is connected to the metal ground. The second portion 122 is arranged on the periphery of the first portion 121, and a gap 13 is provided between the second portion 122 and the first portion 121. A plurality of antenna ports 14 connecting the first portion 121 and the second portion 122 are provided in the gap 13.

[0030] The grounding structure 12 of the suspended branch 111 includes a first portion 121 and a second portion 122, with the second portion 122 disposed outside the first portion 121. A gap 13 is provided between the second portion 122 and the first portion 121, and multiple antenna ports 14 are provided within the gap 13, connecting the first portion 121 and the second portion 122. This grounding structure 12 connects the first portion 121 and the second portion 122 via an antenna interface. This not only provides the suspended branch 111 of the radiating element 11 with structural conditions suitable for SAR sensor detection, but also creates a grounding effect equivalent to rib-level grounding, reducing interference between the suspended branch 111 and adjacent branches 112, thereby balancing SAR sensor detection and antenna performance.

[0031] like Figure 1 As shown, taking the WiFi6e antenna fed by the adjacent branch 112 on the left side of the suspended branch 111 as an example, when the suspended branch 111 does not have a grounding structure 12, the suspended branch 111 will cause its high-order mode to fall within the band, resulting in the following phenomenon within the WiFi6e band at 5.5GHz and 6.7GHz: Figure 2 Efficiency pit shown.

[0032] It should be noted that the radiation body 11 of the antenna assembly 1 can be independent of the structure of the electronic device, or it can be Figure 1 The metal frame structure of the electronic device middle frame shown is not limited in the present disclosure.

[0033] In some embodiments, the first portion 121 is provided with a first connection position at an end 1211 in the length direction of the suspension branch 111, and the first connection position is connected to the second portion 122 via the antenna port 14. Figure 3 As shown by the curve A1, connecting the antenna port 14 at the two ends 1211 of the first portion 121 along the length direction of the suspended branch 111 can effectively reduce the interference of the suspended branch 111 on the adjacent branch 112 and help simplify the structural setting of the antenna component 1.

[0034] In the above embodiment, the second portion 122 is provided with a second connection position aligned with the first connection position in the width direction of the suspension branch 111, and the first connection position and the second connection position are connected via the antenna port 14. Arranging the second connection position of the second portion 122 in the width direction of the suspension branch 111 can reduce the space occupied by the second portion 122 in the length direction of the suspension branch 111, thereby optimizing the structural layout of the antenna assembly 1.

[0035] Alternatively, the second linking site may also be set at other positions around the first linking site, and the present disclosure does not limit the specific position of the second linking site.

[0036] In some embodiments, the first portion 121 includes a first body 1212 and a second body 1213 arranged along the width of the suspension branch 111. The first body 1212 is connected to the suspension branch 111, and the second body 1213 is connected to the first body 1212. Ends 1211 are provided at both ends of the first body 1212. The second portion 122 forms a recessed portion, and the second body 1213 is accommodated in the recessed portion. At least one antenna port 14 is provided in a compartment 13 within the recessed portion. Providing the first portion 121 with the first and second bodies 1212, 1213 arranged along the width of the suspension branch 111 helps enrich the connection locations of the antenna port 14 by leveraging the structures of the first and second bodies 1212, 1213. Furthermore, the grounding solution achieved by the antenna port 14 can achieve similar or equivalent results to a solution that directly grounds through the metal structure of the midframe.

[0037] In some embodiments, the second body 1213 includes a bottom wall 1213b arranged toward the bottom of the recess and a pair of side walls 1213a connecting the bottom wall 1213b and the first body 1212. The bottom wall 1213b and / or the side wall 1213a are connected to the inner wall of the recess through the antenna port 14 to enrich the connection position of the antenna port 14.

[0038] Among them, such as Figure 3 As shown in the A2 curve, a pair of side walls 1213a can be provided with a symmetrically arranged third connection position, and the inner wall of the recess is provided with a fourth connection position aligned with the third connection position in the length direction of the suspended branch 111. The third connection position and the fourth connection position are connected through the antenna port 14 to increase the connection position of the antenna port 14 and optimize the grounding scheme.

[0039] Furthermore, the bottom wall 1213b is evenly distributed with fifth connection positions, and the concave portion is provided with a sixth connection position aligned with the fifth connection position in the width direction of the suspension branch 111. The fifth connection position and the sixth connection position are connected through the antenna port 14 to increase the connection position of the antenna port 14 and optimize the grounding solution. Figure 3 The curve A3 shown in the figure is the WiFi6e antenna efficiency diagram when two fifth connection positions are provided at both ends of the bottom wall 1213b. Figure 3 The A4 curve shown is the WiFi6e antenna efficiency diagram when the bottom wall 1213b is provided with three evenly distributed fifth connection positions.

[0040] When the first connection position and the second connection position are connected through the antenna port 14, the third connection position and the fourth connection position are connected through the antenna port 14, and the fifth connection position and the sixth connection position are connected through the antenna port 14, a nearly equivalent Figure 3 The A5 curve in FIG shows the effect of the solution of grounding directly through the metal structure of the middle frame. Figure 3 The A6 curve shown is the WiFi6e antenna efficiency diagram when the first part 121 and the second part 122 are not connected.

[0041] In the above embodiment, the second body 1213 can be a rectangular structure, so that the rectangular structure can be used to obtain grounding points in multiple directions. Alternatively, the second body 1213 can also be a circular, polygonal, or irregular structure, and this disclosure is not limited to this. Corresponding to the shape of the second body 1213, the shape of the recessed portion enclosed by the second portion 122 can be rectangular, circular, polygonal, or irregular, and this disclosure is not limited to this.

[0042] It should be noted that the antenna port 14 may include a connection capacitor to achieve a port grounding effect through the connection capacitor and other electronic components, so as to achieve a solution effect close to that of directly grounding through the metal structure of the middle frame. The above-mentioned antenna assembly 1 may be an ultra-high frequency antenna.

[0043] The present disclosure further provides an electronic device, which includes the antenna assembly 1 described above.

[0044] The electronic device may include a middle frame including a metal frame and internal metal parts, wherein part of the metal frame structure may serve as the suspended branches 111 and adjacent branches 112 of the radiating body 11 , and the internal metal parts may serve as the grounding structure 12 .

[0045] The grounding structure 12 of the suspended branch 111 includes a first portion 121 and a second portion 122, with the second portion 122 disposed outside the first portion 121. A gap 13 is provided between the second portion 122 and the first portion 121, and multiple antenna ports 14 are provided within the gap 13, connecting the first portion 121 and the second portion 122. This grounding structure 12 connects the first portion 121 and the second portion 122 via antenna interfaces. This not only provides the suspended branch 111 of the radiating element 11 with structural conditions suitable for SAR sensor detection, but also creates a grounding effect equivalent to rib-level grounding, reducing interference between the suspended branch 111 and adjacent branches 112, thereby balancing SAR sensor detection and antenna performance.

[0046] It should be noted that the above-mentioned electronic devices can be mobile phones, tablet computers, wearable devices, vehicle-mounted terminals, medical terminals, etc.

[0047] The above description is merely a preferred embodiment of the present disclosure and does not constitute any form of limitation to the present disclosure. Although the present disclosure has been disclosed as a preferred embodiment as above, it is not intended to limit the present disclosure. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present disclosure. However, any simple modifications, equivalent changes and modifications 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 are still within the scope of the technical solution of the present disclosure.

Claims

1. An antenna assembly, characterized in that: include: A radiating body, comprising a suspended branch and adjacent branches located on both sides of the suspended branch, wherein the suspended branch is disconnected from the adjacent branches; The grounding structure includes a first part and a second part, wherein the first part is connected to the suspended branch, and the second part is connected to the metal ground; the second part is arranged on the periphery of the first part, and a gap is provided between the second part and the first part; a plurality of antenna ports connecting the first part and the second part are provided in the gap.

2. The antenna assembly according to claim 1, wherein: The first part is provided with a first connection position at an end portion in the length direction of the suspension branch, and the first connection position is connected to the second part through the antenna port.

3. The antenna assembly according to claim 2, wherein: The second portion is provided with a second connection position aligned with the first connection position in the width direction of the suspension branch, and the first connection position and the second connection position are connected through the antenna port.

4. The antenna assembly according to claim 2, wherein: The first part includes a first body and a second body arranged along the width direction of the suspension branch, the first body is connected to the suspension branch, and the second body is connected to the first body; The end portions are arranged at both ends of the first body; the second portion forms a recessed portion, the second body is accommodated in the recessed portion, and at least one antenna port is provided at a spacing within the recessed portion.

5. The antenna assembly according to claim 4, wherein: The second body includes a rectangular structure.

6. The antenna assembly according to claim 4, wherein: The second body includes a bottom wall disposed toward the bottom of the recess and a pair of side walls connecting the bottom wall and the first body, and the bottom wall and / or the side walls are connected to an inner wall of the recess through the antenna port.

7. The antenna assembly according to claim 6, wherein: A pair of the side walls are provided with symmetrically arranged third connection positions, and the inner wall of the recess is provided with a fourth connection position aligned with the third connection position in the length direction of the suspension branch, and the third connection position and the fourth connection position are connected through the antenna port.

8. The antenna assembly according to claim 6, wherein: The bottom wall is evenly distributed with fifth connection positions, the recess is provided with a sixth connection position aligned with the fifth connection position in the width direction of the suspension branch, and the fifth connection position and the sixth connection position are connected through the antenna port.

9. The antenna assembly according to claim 1, wherein: The antenna port includes a connection capacitor.

10. An electronic device, characterized in that: include: The antenna assembly according to any one of claims 1 to 9.