Antenna accessory and electronic device

By designing antenna accessories with a non-metallic substrate and a ring-shaped ground plane to excite higher-order modes in a handheld terminal, the problems of space occupation and user experience of satellite antennas are solved, and good radiation performance and space utilization are optimized.

CN121055029APending Publication Date: 2025-12-02BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Application Number
CN202410705490.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-05-31
Publication Date
2025-12-02

AI Technical Summary

Technical Problem

When configuring satellite communication antennas in handheld terminals, existing technologies struggle to improve the satellite antenna's airspace environment and user experience without occupying space for other data network communication antennas.

Method used

Design an antenna accessory including a non-metallic substrate, a satellite antenna, and a satellite communication chip. The satellite antenna is located at the corner of the non-metallic substrate and protrudes along the width direction. Combined with a ring-shaped ground plane to excite higher-order modes, the antenna arrangement is optimized to improve the airspace environment and user experience.

Benefits of technology

It achieves good radiation performance of satellite antenna to meet communication requirements, while leaving space for the main body of the device to arrange other antennas, conforming to the user's normal holding posture and improving the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to an antenna accessory and electronic equipment. The antenna accessory comprises a non-metal substrate; the satellite antenna is connected to the non-metal base body; the satellite communication chip is arranged on the non-metal substrate, the satellite communication chip comprises a feed end and an electric connection port, the feed end is electrically connected to the satellite antenna, and the electric connection port is used for being electrically connected with the equipment main body; and the floor is arranged on the surface of the non-metal base body, and the floor is electrically connected with the satellite antenna.
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Description

Technical Field

[0001] This disclosure relates to the field of terminal technology, and in particular to an antenna accessory and electronic device. Background Technology

[0002] With the growing popularity of outdoor adventure, some users hope that handheld devices can enable emergency communication in extreme scenarios without data networks, thereby improving the safety of their expeditions. While some related technologies incorporate satellite communication antennas in handheld devices, the development of data communication technologies has squeezed the space available for other data network communication antennas. Summary of the Invention

[0003] This disclosure provides an antenna accessory and electronic device to address the shortcomings of related technologies.

[0004] According to a first aspect of the present disclosure, an antenna accessory is provided, comprising:

[0005] A non-metallic substrate, which is used to encapsulate the main body of the device;

[0006] Satellite antenna, wherein the satellite antenna is connected to the non-metallic substrate;

[0007] A satellite communication chip is disposed on the non-metallic substrate. The satellite communication chip includes a feed terminal and an electrical connection port. The feed terminal is electrically connected to the satellite antenna, and the electrical connection port is used for electrical connection with the main body of the device.

[0008] A floor, which is disposed on the surface of the non-metallic substrate and is electrically connected to the satellite antenna.

[0009] Optionally, the non-metallic substrate is square in shape, and the satellite antenna is located at any corner of the non-metallic substrate and protrudes outward along the width direction of the non-metallic substrate.

[0010] Optionally, the satellite antenna is located at the bottom corner of the non-metallic substrate and protrudes outward along the width direction of the non-metallic substrate.

[0011] Optionally, the floor may include a ring-shaped floor.

[0012] Optionally, the annular floor includes a quadrilateral annular floor, and the satellite antenna is electrically connected to the corner of the quadrilateral annular floor.

[0013] Optionally, the annular floor includes a square annular floor, the side length of which is in the range of 50mm-70mm, and the side width of which is in the range of 8mm-12mm.

[0014] Optionally, the non-metallic substrate includes a shell for enclosing the main body of the device.

[0015] Optionally, the satellite antenna is retractable relative to the non-metallic substrate, and the non-metallic substrate includes a storage cavity. When the satellite antenna retracts into the storage cavity, it switches to a storage state; when the satellite antenna extends out of the storage cavity, it switches to a communication state.

[0016] According to a second aspect of the present disclosure, an electronic device is provided, comprising:

[0017] Equipment body;

[0018] As described in any of the above-mentioned antenna accessories, the satellite communication chip is electrically connected to the main body of the device.

[0019] Optionally, the non-metallic substrate includes a shell for wrapping the main body of the device, wherein the corners of the shell are wrapped in a one-to-one correspondence with the corners of the main body of the device.

[0020] The satellite antenna is located at any corner of the housing and protrudes outward along the width of the housing.

[0021] Optionally, the device body includes a frame, the frame includes a frame antenna stub, and the frame antenna stub is located at the bottom of the device body;

[0022] The satellite antenna is located at the bottom corner of the housing. The frame antenna stub and the satellite antenna are located at the same bottom corner near the main body of the device. The frame antenna stub is not used to radiate mid-to-high frequency bands.

[0023] Optionally, the device body includes a frame, the frame includes a frame antenna stub, the frame antenna stub is located at the bottom of the device body, the frame antenna stub and the satellite antenna are arranged near the same bottom corner of the device body, and the frame antenna stub is used to radiate any one or more mid-to-high frequency bands;

[0024] Wherein, in the thickness direction of the main body of the device, the ground plane of the frame antenna stub at least partially overlaps with the ground plane of the satellite antenna.

[0025] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0026] As can be seen from the above embodiments, the present disclosure places the satellite antenna used for communicating with the target communication satellite in the antenna accessory, which is beneficial to improving the airspace environment of the satellite antenna and can also make room for the arrangement of other antennas in the main body of the equipment.

[0027] 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

[0028] 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.

[0029] Figure 1 This is a schematic diagram of the structure of an antenna accessory according to an exemplary embodiment.

[0030] Figure 2 Based on Figure 1 Left-hand circular polarization pattern of a satellite antenna for antenna accessories.

[0031] Figure 3 This is a schematic diagram of the structure of another antenna accessory according to an exemplary embodiment.

[0032] Figure 4 Based on Figure 3 Left-hand circular polarization pattern of a satellite antenna for antenna accessories.

[0033] Figure 5 This is a structural schematic diagram of another antenna accessory according to an exemplary embodiment.

[0034] Figure 6 yes Figure 5 The current distribution diagram of the floor in the image.

[0035] Figure 7 Based on Figure 5 Left-hand circular polarization pattern of a satellite antenna for antenna accessories.

[0036] Figure 8 This is a partial schematic diagram of an electronic device according to an exemplary embodiment. Detailed Implementation

[0037] 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.

[0038] 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.

[0039] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0040] Figure 1 This is a schematic diagram of an antenna accessory according to an exemplary embodiment. The antenna accessory includes a non-metallic substrate 1, a satellite antenna 2, a satellite communication chip 3, and a ground plane 4. The satellite antenna 2 can be connected to the non-metallic substrate 1. The satellite communication chip 3 is disposed on the non-metallic substrate 1. The satellite communication chip 3 includes a feed terminal 31 and an electrical connection port 32. The feed terminal 31 is electrically connected to the satellite antenna 2, thereby feeding electromagnetic wave signals to the satellite antenna 2 through the satellite communication chip 3. The electrical connection port 32 can be used for electrical connection with the main body of the device, thereby realizing communication between the satellite communication chip 3 and the main body of the device. The ground plane 4 is disposed on the surface of the non-metallic substrate 1, for example, it can be the inner surface or the outer surface of the non-metallic substrate 1. The electrical connection between the ground plane 4 and the satellite antenna 2 realizes the grounding of the satellite antenna 2.

[0041] In this embodiment, after assembling the antenna accessories with the main body of the device, the signal required to be transmitted by the main body of the device can be sent to the target communication satellite through the electrical connection between the satellite communication chip 3, the satellite antenna 2, and the main body of the device. Placing the satellite antenna 2, used for communication with the target communication satellite, on the antenna accessories improves the clearance environment for the satellite antenna 2 and frees up space for other antennas on the main body of the device. The non-metallic substrate 1 may include a shell, which can be used to enclose the main body of the device, specifically, it can fully enclose or partially enclose the main body of the device.

[0042] In some instances, the satellite antenna 2 can remain extended relative to the non-metallic substrate 1 for an extended period. In other embodiments, the satellite antenna 2 is retractable relative to the non-metallic substrate 1, allowing it to be stored when communication with the target satellite is not required, thus protecting the satellite antenna 2. Optionally, the non-metallic substrate 1 may include a storage cavity. When communication with the target satellite is not required, the satellite antenna 2 can retract into the storage cavity, switching to a stored state. When the satellite antenna 2 extends out of the storage cavity, it switches to a communicable state. Alternatively, the retractable arrangement of the satellite antenna 2 relative to the non-metallic substrate 1 can also be that the satellite antenna 2 itself is a retractable structure. For example, the satellite antenna 2 may include multiple retractably connected communication units. When communication with the target communication satellite is required, these multiple communication units can be sequentially connected to form a strip-shaped satellite antenna 2. When communication with the target communication satellite is not required, other communication units can be stored in the central cavity of the communication unit connected to the non-metallic substrate 1.

[0043] Still with Figure 1 As shown, the non-metallic substrate 1 is square in shape, and the satellite antenna 2 can be disposed at any corner of the non-metallic substrate 1, and the satellite antenna 2 protrudes outward along the width direction of the non-metallic substrate. For example, taking... Figure 1 Taking the top of the non-metallic substrate 1 as an example, when the main body of the device is wrapped around the non-metallic substrate 1, the top of the main body of the device is also... Figure 1 The satellite antenna 2 is positioned at the upper right corner of the non-metallic substrate 1 and extends to the right along the width of the non-metallic substrate 1.

[0044] To communicate with the Tiantong satellite via satellite antenna 2, satellite antenna 2 needs to cover the TX 1.98 GHz~2.01 GHz and RX 2.17 GHz~2.2 GHz bands. Based on Figure 1 The position of satellite antenna 2 was simulated, with the thickness direction of the non-metallic substrate 1 defined as the X-axis, the length direction as the Z-axis, and the width direction as the Y-axis, resulting in... Figure 2 The left-hand circular polarization pattern of satellite antenna 2 shown is based on... Figure 2 As shown, near 2.175 GHz, the left-hand circular polarization gain of satellite antenna 2 reaches 3.822 dB, exhibiting good radiation performance and meeting the communication requirements of the Tiantong satellite. However, it is still based on... Figure 2 As shown, the left-hand circular polarization pattern of satellite antenna 2 is lower at this time. Therefore, when the user is aligning with the satellite, the bottom of the main body of the device needs to face the zenith. This does not conform to the user's normal holding posture for electronic devices, resulting in a poor user experience.

[0045] Therefore, further, this is as follows Figure 3As shown, the satellite antenna 2 is located at the bottom corner of the non-metallic substrate 1 and protrudes outward along the width direction of the non-metallic substrate 1. Based on this, the thickness direction of the non-metallic substrate 1 is defined as the X-axis, the length direction as the Z-axis, and the width direction as the Y-axis, resulting in... Figure 4 The diagram shows the left-hand circular polarization pattern of satellite antenna 2. (See also...) Figure 4 At around 2.2 GHz, satellite antenna 2 achieves a left-hand circular polarization gain of 2.580 dB, demonstrating good radiation performance and meeting the communication requirements of the Tiantong satellite. Moreover, relatively... Figure 1 The satellite antenna 2 is positioned such that its left-hand circular polarization pattern faces the back of the non-metallic substrate 1, relative to... Figure 1 In some cases, the device body needs to be completely upside down with the bottom facing the zenith for satellite alignment. However, in other cases, simply inverting the device body by 90° is sufficient to complete satellite alignment, and it also provides good communication performance.

[0046] Furthermore, although based on Figure 3 The arrangement of satellite antenna 2 improves the user experience to some extent, but it doesn't conform to the typical one-handed holding posture of a user when holding the device with one hand, i.e., with the top of the device facing the zenith. Therefore, as... Figure 5 As shown, the ground plane 4 may include a ring-shaped ground plane. The structure of the ring-shaped ground plane allows for the excitation of multiple higher-order modes. Specifically, when the satellite antenna 2 is operating, the current distribution on the ring-shaped ground plane is as follows: Figure 6 As shown, the left-hand circular polarization pattern of satellite antenna 2 is as follows: Figure 7 As shown. See also Figure 6 and Figure 7 At the operating frequency of satellite antenna 2, a third-order higher mode can be excited on the ring ground, and for reference... Figure 7 At around 2.2GHz, the left-hand circular polarization gain of satellite antenna 2 reaches 3.205dB, which has good radiation performance and meets the communication requirements of Tiantong satellite. In addition, the left-hand circular polarization pattern is set at the top, that is, towards the zenith, so that the top of the device body can be facing the zenith for satellite alignment, which conforms to the user's normal holding posture and provides a good user experience.

[0047] In this context, a ring-shaped floor can be understood as a plate-like structure with a hollow area, such as... Figure 4 The annular floor shown is a quadrilateral annular floor, with the satellite antenna electrically connected to the corner of the quadrilateral annular floor. In other embodiments, the annular floor may also be a circular annular floor. The shape of the hollow region may be the same as or different from the outer shape of the annular floor, and this disclosure is not limited in this regard. For example, the quadrilateral annular floor may include a square annular floor, such as... Figure 5As shown, the side length L1 of the square annular floor is in the range of 50mm-70mm, and the side width L2 of the annular floor is in the range of 8mm-12mm.

[0048] Based on the technical solution disclosed herein, such as Figure 8 As shown, an electronic device is also provided, which includes a device body 101 and an antenna accessory as described in any of the foregoing embodiments. The satellite communication chip 3 of the antenna accessory is electrically connected to the device body 101, for example, through a communication port at the bottom of the device body 101.

[0049] Based on this, after configuring antenna accessories for the main body of the equipment, signal transmission with the target communication satellite can be achieved through satellite antenna 2, freeing up space for the arrangement of other antennas on the main body of the equipment. At the same time, since satellite antenna 2 is far away from the electronic components inside the main body of the equipment, it is beneficial to improve the airspace environment of satellite antenna 2.

[0050] In this embodiment, the non-metallic substrate 1 can be a shell that can wrap around the device body 101. The shape of the shell matches the shape of the device body 101, thus providing adequate protection for the device body 101. The corners of the shell are arranged to correspond one-to-one with the corners of the device body 101. Optional features include... Figure 8 As shown, the four corners of the casing—upper left, upper right, lower left, and lower right—respectively wrap around the four corners of the main body 101—upper left, upper right, lower left, and lower right. Based on this, the relative positional relationship between the satellite antenna 2 and the casing is essentially the same as the relative positional relationship between the satellite antenna 2 and the main body 101. When the satellite antenna 2 is positioned at any corner of the casing and protrudes outward along the width of the casing, the left-hand circular polarization pattern of the satellite antenna 2 is essentially equivalent to the azimuth in the aforementioned example. Therefore, communication between the main body 101 and the Tiantong satellite can be achieved, further enhancing the user experience.

[0051] In some examples, the device body 101 includes a frame 102, which includes a frame antenna stub 103 located at the bottom of the device body 101. The satellite antenna 2 is located at the bottom corner of the housing, and the frame antenna stub 103 and the satellite antenna 2 are located near the same bottom corner of the device body 101. The frame antenna stub 103 is not used to radiate mid-to-high frequency bands, thereby avoiding mutual radiation interference between the two due to the proximity of the mid-to-high frequency bands and the communication frequency band of the satellite antenna 2.

[0052] In other examples, the frame antenna stub 103 can be used to radiate one or more mid-to-high frequency band signals. In order to reduce the mutual interference between the mid-to-high frequency band and the communication band of the satellite antenna 2 due to their similarity, the ground plane of the frame antenna stub 103 can be at least partially overlapped with the ground plane of the satellite antenna 2 in the thickness direction of the device body 101.

[0053] 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.

[0054] 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 accessory, characterized in that, include: Non-metallic matrix; Satellite antenna, wherein the satellite antenna is connected to the non-metallic substrate; A satellite communication chip is disposed on the non-metallic substrate. The satellite communication chip includes a feed terminal and an electrical connection port. The feed terminal is electrically connected to the satellite antenna, and the electrical connection port is used for electrical connection with the main body of the device. A floor, which is disposed on the surface of the non-metallic substrate and is electrically connected to the satellite antenna.

2. The antenna accessory according to claim 1, characterized in that, The non-metallic substrate is square in shape, and the satellite antenna is located at any corner of the non-metallic substrate and protrudes outward along the width of the non-metallic substrate.

3. The antenna accessory according to claim 2, characterized in that, The satellite antenna is located at the bottom corner of the non-metallic substrate and protrudes outward along the width of the non-metallic substrate.

4. The antenna accessory according to claim 3, characterized in that, The floor includes a ring-shaped floor.

5. The antenna accessory according to claim 4, characterized in that, The annular floor includes a quadrilateral annular floor, and the satellite antenna is electrically connected to the corner of the quadrilateral annular floor.

6. The antenna accessory according to claim 4, characterized in that, The annular floor includes a square annular floor, the side length of which is in the range of 50mm-70mm, and the side width of which is in the range of 8mm-12mm.

7. The antenna accessory according to claim 2, characterized in that, The non-metallic substrate includes a shell, which is used to enclose the main body of the device.

8. The antenna accessory according to claim 1, characterized in that, The satellite antenna is retractable relative to the non-metallic substrate, and the non-metallic substrate includes a storage cavity. When the satellite antenna retracts into the storage cavity, it switches to the storage state. When the satellite antenna extends out of the storage cavity, it switches to the communication state.

9. An electronic device, characterized in that, include: Equipment body; The antenna accessory as described in any one of claims 1-8, wherein the satellite communication chip is electrically connected to the main body of the device.

10. The electronic device according to claim 9, characterized in that, The non-metallic substrate includes a shell for wrapping the main body of the device, wherein the corners of the shell are wrapped in a one-to-one correspondence with the corners of the main body of the device. The satellite antenna is located at any corner of the housing and protrudes outward along the width of the housing.

11. The electronic device according to claim 10, characterized in that, The main body of the device includes a frame, the frame includes a frame antenna stub, and the frame antenna stub is located at the bottom of the main body of the device; The satellite antenna is located at the bottom corner of the housing. The frame antenna stub and the satellite antenna are located at the same bottom corner near the main body of the device. The frame antenna stub is not used to radiate mid-to-high frequency bands.

12. The electronic device according to claim 10, characterized in that, The main body of the device includes a frame, the frame includes a frame antenna branch, the frame antenna branch is located at the bottom of the main body of the device, the frame antenna branch and the satellite antenna are arranged near the same bottom corner of the main body of the device, and the frame antenna branch is used to radiate any one or more mid-to-high frequency bands; Wherein, in the thickness direction of the main body of the device, the ground plane of the frame antenna stub at least partially overlaps with the ground plane of the satellite antenna.