Antenna module and terminal device

Abstract

The present disclosure relates to an antenna module and a terminal device, wherein the antenna module comprises: a first antenna and a second antenna, a gap is arranged between the first antenna and the second antenna; a SAR sensor connected with the first antenna; a conductive part connected with the first antenna, a projection of the conductive part in the extension direction of the second antenna covers the second antenna. In the structure of the present disclosure, the SAR sensor takes the first antenna and the conductive part connected with the first antenna as a detection object, the area occupied by the conductive part is effectively expanded compared with the first antenna, so that the detection area of the SAR sensor is larger, the number of antennas that can be detected by the SAR sensor is effectively expanded, the accuracy of the antenna SAR value is improved, and the risk of SAR exceeding the standard is reduced.

Description

Technical Field

[0001] This disclosure relates to the field of terminals, and more particularly to an antenna module and terminal equipment. Background Technology

[0002] With the development of fifth-generation mobile communication technology (5G), terminal devices such as mobile phones are increasingly equipped with more and more antennas. The development trend of terminal devices includes thinner and lighter sizes and higher screen-to-body ratios, thus limiting the space available for antenna placement within these devices.

[0003] Given the large number of antennas and the characteristics of industrial design in terminal devices, there is a problem in the related technologies that cannot fully detect the electromagnetic energy absorption ratio (SAR) of each antenna, which may lead to the risk of the SAR value of the terminal device exceeding the standard. Summary of the Invention

[0004] To overcome the problems existing in related technologies, this disclosure provides an antenna module and a terminal device.

[0005] According to a first aspect of the embodiments of this disclosure, an antenna module is provided, comprising:

[0006] A gap is provided between the first antenna and the second antenna;

[0007] A SAR sensor connected to the first antenna;

[0008] A conductive part is connected to the first antenna, and the projection of the conductive part in the extension direction of the second antenna covers the second antenna.

[0009] In some embodiments, the conductive portion is parallel to the second antenna, and in the extending direction of the second antenna, the extending length of the conductive portion is greater than the extending length of the second antenna.

[0010] In some embodiments, it further includes: a first small plate and a second small plate;

[0011] The first antenna is connected to the first small board, and the second antenna is connected to the second small board;

[0012] The SAR sensor is mounted on the first small plate, and the conductive part is connected to the second small plate, with a preset gap between them.

[0013] In some embodiments, it further includes: a connection component disposed on the second small plate; one end of the conductive portion is connected to the end of the first antenna near the gap through the connection component.

[0014] In some embodiments, the connecting component includes a first fixing part and a second fixing part;

[0015] The first antenna is connected to the first fixing part, and the first fixing part is connected to the second fixing part; the second fixing part is connected to the end of the conductive part and limits the conductive part to the second small plate.

[0016] In some embodiments, it further includes: a filtering structure;

[0017] The filtering structure is disposed on the second small plate, and the first fixing part is connected to the second fixing part through the filtering structure.

[0018] In some embodiments, the filtering structure includes a resonant circuit, which includes a capacitor and an inductor connected in parallel.

[0019] In some embodiments, a connecting portion is provided at one end of the first antenna near the gap, and the connecting component is connected to the connecting portion.

[0020] In some embodiments, the conductive portion is obtained by a laser forming process.

[0021] In some embodiments, the second small plate is further provided with at least one limiting member, which is distributed along the extension path of the conductive part and is used to limit the connection of the conductive part.

[0022] In some embodiments, the detection range of the SAR sensor is positively correlated with the area of ​​the conductive portion.

[0023] According to a second aspect of the present disclosure, a terminal device is provided, including the antenna module described in any of the preceding claims.

[0024] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: In the structure of this disclosure, the SAR sensor uses a first antenna and a conductive part connected to the first antenna as the detection body. The area occupied by the conductive part is effectively expanded compared to the first antenna, thereby increasing the detection area of ​​the SAR sensor, effectively expanding the number of antennas that the SAR sensor can detect, improving the accuracy of the antenna SAR value, and reducing the risk of SAR exceeding the standard.

[0025] 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

[0026] 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.

[0027] Figure 1 This is a schematic diagram illustrating a structure according to an exemplary embodiment.

[0028] Figure 2 This is a schematic diagram illustrating the change in the detection area according to an example embodiment.

[0029] Figure 3 This is an enlarged schematic diagram of a partial structure according to an exemplary embodiment. Detailed Implementation

[0030] 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 the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0031] The main reasons for the aforementioned technical problems in related technologies include:

[0032] First, due to the increasing number of antennas on terminal devices, space constraints, and cost issues, it is not possible to equip each antenna with a corresponding SAR sensor (Sensor of Electromagnetic Energy Absorption Ratio).

[0033] Second, for antennas equipped with SAR sensors, the detection range of each SAR sensor is limited, and the detection distance is relatively small.

[0034] Both of the above reasons can cause some antennas to fail to detect or cover SAR values. Antennas that cannot detect SAR values ​​pose a risk of exceeding SAR limits or require forced power backoff. The probability of exceeding SAR limits is even higher when the antenna that cannot detect SAR values ​​is one with transmitting capabilities. Therefore, these technical issues can affect user safety or user experience.

[0035] To address the problems in related technologies, this disclosure proposes an antenna module, including: a first antenna and a second antenna, with a gap between the first antenna and the second antenna; a SAR sensor connected to the first antenna; and a conductive part connected to the first antenna, the projection of the conductive part in the extension direction of the second antenna covering the second antenna. In the structure of this disclosure, the SAR sensor uses the first antenna and the conductive part connected to the first antenna as the detection body. The area occupied by the conductive part is effectively expanded compared to the first antenna, thereby increasing the detection area of ​​the SAR sensor, effectively expanding the number of antennas that the SAR sensor can detect, improving the accuracy of the antenna SAR value, and reducing the risk of SAR exceeding the limit.

[0036] In one exemplary embodiment, such as Figures 1 to 3 As shown, the antenna module in this embodiment includes: a first antenna 10, a second antenna 20, a SAR sensor 30, and a conductive part 40.

[0037] A gap is provided between the first antenna 10 and the second antenna 20, and the SAR sensor 30 is connected to the first antenna 10. The conductive part 40 is connected to the first antenna 10, and the projection of the conductive part 40 in the extension direction of the second antenna 20 covers the second antenna 20.

[0038] In this embodiment, the first antenna 10 is electrically connected to the SAR sensor 30, which can be a SAR sensor chip. The conductive part 40 can be a structure made of metal, such as copper foil, copper wire, or conductive strip, and is electrically connected to the first antenna 10.

[0039] The first antenna 10 and the second antenna 20 can be antennas formed by the metal frame of the electronic device. Combined Figure 1 or Figure 2 As shown, the first antenna 10 can be L-shaped, and the second antenna 20 can be straight. The horizontal part of the L-shaped structure in the first antenna 10 and the second antenna 20 are located on the same side frame extending along the width direction of the electronic device.

[0040] Wherein, the first antenna 10 represents an antenna corresponding to the SAR sensor 30, and the second antenna 20 represents an antenna connected to the first antenna 10 but without a connected SAR sensor. Figure 1 As shown, the second antenna 20 can be located on the side frame of the electronic device extending in the width direction. The gap between the first antenna 10 and the second antenna 20 can be located at the USB interface 100 of the electronic device.

[0041] Understandable. Figures 1 to 3 The corresponding embodiments are intended to illustrate the positional relationship between the first antenna 10 and the second antenna 20, rather than limiting the positions of the first antenna 10 and the second antenna 20. For example, the second antenna 20 may also be located on the side frame extending along the length direction of the electronic device, on the same side as the vertical part of the L-shaped structure in the first antenna 10.

[0042] The SAR sensor 30 comprises two parts: a first antenna 10 and a conductive part 40. The detection area of ​​the SAR sensor 30 includes a first preset range near the first antenna 10 and a second preset range near the conductive part 40. The second preset range corresponding to the conductive part 40 can cover the second antenna 20, and the SAR sensor 30 can also detect changes in the environment or dielectric within this range.

[0043] Combination Figure 2As shown, when the conductive part 40 is not provided, the detection area of ​​the SAR sensor 30 can be an L-shaped area S0 corresponding to the first antenna 10. However, after the conductive part 40 is provided, the detection area of ​​the SAR sensor 30 includes the L-shaped area S0 and the enlarged part S1, that is, the detection area of ​​the SAR sensor 30 is (S0+S1). The detection area can cover the first antenna 10 and the second antenna 20, so the SAR values ​​corresponding to the first antenna 10 and the second antenna 20 can be detected simultaneously.

[0044] In this embodiment, the detection area of ​​the SAR sensor 30 is increased, allowing at least two antennas to detect SAR values ​​through the same SAR sensor 30. This enables the use of a predetermined number of SAR sensors in the electronic device to detect more antennas, reducing the risk of SAR exceeding limits.

[0045] In one exemplary embodiment, such as Figures 1 to 3 As shown, the conductive part 40 is parallel to the second antenna 20, and in the extension direction of the second antenna 20, the extension length of the conductive part 40 is greater than the extension length of the second antenna 20.

[0046] In this embodiment, the second antenna 20 extends along the width direction of the electronic device. The greater the extension distance of the conductive part 40, the larger the distribution area, thereby increasing the corresponding second preset range and the detection area of ​​the SAR sensor 30. Furthermore, considering the compact internal spatial layout of the electronic device, the placement position of the conductive part 40 is adapted to the position of the second antenna 20. The extension length of the conductive part 40 can cover the second antenna 20, and the distance between the conductive part 40 and the second antenna 20 is less than a threshold, further ensuring that the second antenna 20 is within the second preset range corresponding to the conductive part 40.

[0047] In this embodiment, the detection range of the SAR sensor 30 is positively correlated with the area of ​​the conductive part 40. Therefore, provided that the layout space allows, the detection range of the SAR sensor 30 can be adjusted by adjusting the distribution area or region of the conductive part 40.

[0048] In one exemplary embodiment, such as Figures 1 to 3 As shown, in this embodiment, the antenna module further includes a first small board 11 and a second small board 21. The first antenna 10 is connected to the first small board 11, and the second antenna 20 is connected to the second small board 21. The SAR sensor 30 is disposed on the first small board 11, and the conductive part 40 is connected to the second small board 21, with a preset gap between them.

[0049] In this embodiment, each antenna can be electrically connected to a corresponding PCB board. The first board 11 and the second board 21 can be different areas of the same PCB, or they can be electrically connected to the PCB separately. The conductive part 40 can be formed by LDS (laser sizing) and then connected to the second board 21, for example, one end of the conductive part 40 can be connected to the second board 21 via a connector. The preset gap refers to the gap between the surface of the conductive part 40 and the surface of the second board 21.

[0050] In one exemplary embodiment, such as Figures 1 to 3 As shown, the antenna module in this embodiment further includes a connecting component 50 disposed on the second small plate 21. One end of the conductive part 40 is connected to the end of the first antenna 10 near the gap via the connecting component.

[0051] In this embodiment, the connecting component 50 is made of metal or has a metal-plated surface. The connecting component 50 also serves to limit and fix one end of the conductive part 40.

[0052] There is a gap between the first antenna 10 and the conductive part 40. The connection component 50 can overcome the distance problem and connect the first antenna 10 and the conductive part 40.

[0053] In this embodiment, the first antenna 10 has a metal connecting portion 101 at one end near the fracture, and the connecting portion 101 is in a protruding shape. The first antenna 10 is electrically connected to the conductive portion 40 through the connecting portion 101 and the connecting component 50 in sequence.

[0054] The connection between the second antenna 20 and the second small board 21 can also be made in the same way as described above, i.e., by combining... Figure 1 or Figure 2 As shown, a protrusion is provided on the second antenna 20, and the protrusion is connected to the second small plate 21.

[0055] In one exemplary embodiment, such as Figures 1 to 3 As shown, the connection assembly 50 includes a first fixing part 501 and a second fixing part 502. The first antenna 10 is connected to the first fixing part 501, and the first fixing part 501 is connected to the second fixing part 502. The second fixing part 502 is connected to the end of the conductive part 40 and limits the conductive part 40 to be connected to the second small plate 21.

[0056] In this embodiment, both the first fixing part 501 and the second fixing part 502 can be configured as elastic snap-fit ​​structures, such as spring feet or spring sheets. Both the first fixing part 501 and the second fixing part 502 are connected to the second small plate and are used to fix the conductive part 40.

[0057] In one exemplary embodiment, such as Figures 1 to 3As shown, the antenna module in this embodiment further includes a filter structure 60. The filter structure 60 is disposed on the second small board 21, and the first fixing part 501 is connected to the second fixing part 502 through the filter structure 60.

[0058] In this embodiment, the filter structure 60 is used to increase the isolation between the conductive part 40 and the first antenna 10. For example, by tuning the circuit elements in the filter circuit 60, the conductive part 40 and the first antenna 10 are decoupled and the isolation is increased, thereby avoiding interference from the conductive part 40 in the communication frequency band of the first antenna 10.

[0059] In this embodiment, the filter structure 60 includes a resonant circuit (LC circuit), which comprises a capacitor and an inductor connected in parallel. The performance of the filter structure 60 is adjusted by regulating the capacitor or the inductor.

[0060] The filter circuit 60 can also be configured as a resonant circuit with a resistive element. By increasing the resistance value, the conductive part 40 can be disconnected from the first antenna in a preset scenario (such as the first antenna communication scenario), thereby reducing the impact of the conductive part 40 on the performance of the first antenna 10.

[0061] The communication frequency band of the first antenna 10 is generally high frequency, while the frequency at which the SAR sensor 30 performs detection is lower. Therefore, when the isolation between the first antenna 10 and the conductive part 40 is large, the SAR sensor 30 can still perform normal SAR value detection.

[0062] In one exemplary embodiment, such as Figures 1 to 3 As shown, the conductive part 40 can be obtained by laser die forming (LDS) and connected to the second small plate 21 via the connecting assembly 50.

[0063] Alternatively, in other embodiments, in addition to providing the connecting component 50, the second small plate is also provided with at least one limiting member, which is distributed along the extension path of the conductive part and is used to limit the connection of the conductive part.

[0064] In this embodiment, the connecting component 50 is used to connect one end of the conductive part 40 to the second small plate 21. The limiting member can be configured as a snap-fit ​​structure or still be configured as a spring-loaded foot, used to fix or limit the main structural part of the conductive part 40, thereby improving the stability of the conductive part 40.

[0065] like Figures 1 to 3 As shown, the antenna module provided in the above embodiments of this disclosure can achieve at least the following technical effects:

[0066] First, the detection area of ​​the corresponding SAR sensor 30 is expanded by setting the conductive part 40. This allows the SAR sensor 30, connected to one antenna, to detect the SAR values ​​of at least two antennas. The structural design is more flexible, eliminating the need for a separate SAR sensor for each antenna, which is beneficial for the overall structural design of the terminal device.

[0067] Secondly, based on the structural configuration of this embodiment, the antennas in the terminal device can all perform SAR detection through the detection area of ​​the SAR sensor 30, which improves the accuracy of SAR detection, helps reduce the risk of SAR exceeding the standard of the whole device, and improves user safety and user experience.

[0068] In one exemplary embodiment, this disclosure also proposes a terminal device including the antenna module described in the foregoing embodiments. The terminal device can be an electronic device such as a mobile phone, tablet computer, or laptop computer.

[0069] Terminal devices can be equipped with multiple antennas, combined with Figures 1 to 3 As shown in the embodiments of the antenna module described above, in this embodiment, the detection area of ​​the corresponding SAR sensor 30 can be expanded by setting the conductive part 40. This allows the SAR sensor 30 connected to one antenna to detect the SAR values ​​of at least two antennas, improving the accuracy of detecting the SAR values ​​of the terminal device, reducing the risk of overall SAR exceeding limits, and enhancing user safety and experience. Based on the above structural design, the antenna module's structural design is more flexible, eliminating the need for a corresponding SAR sensor for each antenna, which is beneficial for the overall structural design of the terminal device.

[0070] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention 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 the invention are indicated by the following claims.

[0071] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. An antenna module, characterized in that, include: A gap is provided between the first antenna and the second antenna; A SAR sensor connected to the first antenna; A conductive part is connected to the first antenna, and the projection of the conductive part in the extension direction of the second antenna covers the second antenna; The detection area of ​​the SAR sensor includes a first preset range covering the area around the first antenna and a second preset range covering the area around the conductive part, wherein the second preset range corresponding to the conductive part covers the second antenna.

2. The antenna module according to claim 1, characterized in that, The conductive part is parallel to the second antenna, and in the extending direction of the second antenna, the extension length of the conductive part is greater than the extension length of the second antenna.

3. The antenna module according to claim 1, characterized in that, Also includes: First and second small boards; The first antenna is connected to the first small board, and the second antenna is connected to the second small board; The SAR sensor is mounted on the first small plate, and the conductive part is connected to the second small plate, with a preset gap between them.

4. The antenna module according to claim 3, characterized in that, Also includes: A connection component is disposed on the second small board; one end of the conductive part is connected to the end of the first antenna near the gap through the connection component.

5. The antenna module according to claim 4, characterized in that, The connecting component includes a first fixing part and a second fixing part; The first antenna is connected to the first fixing part, and the first fixing part is connected to the second fixing part; the second fixing part is connected to the end of the conductive part and limits the conductive part to the second small plate.

6. The antenna module according to claim 5, characterized in that, Also includes: Filtering structure; The filtering structure is disposed on the second small plate, and the first fixing part is connected to the second fixing part through the filtering structure.

7. The antenna module according to claim 6, characterized in that, The filtering structure includes a resonant circuit, which comprises a capacitor and an inductor connected in parallel.

8. The antenna module according to any one of claims 4 to 7, characterized in that, The first antenna has a connecting part at one end near the gap, and the connecting assembly is connected to the connecting part.

9. The antenna module according to any one of claims 3 to 7, characterized in that, The conductive part is obtained by laser forming process.

10. The antenna module according to any one of claims 3 to 7, characterized in that, The second small plate is also provided with at least one limiting member, which is distributed along the extension path of the conductive part and is used to limit the connection of the conductive part.

11. The antenna module according to any one of claims 1 to 7, characterized in that, The detection range of the SAR sensor is positively correlated with the area of ​​the conductive part.

12. A terminal device, characterized in that, Includes the antenna module as described in any one of claims 1 to 11.

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