Multi-antenna device
By placing the GPS antenna in the center of the mounting substrate in a multi-antenna device, arranging the sub-antennas of the PCB antenna in a ring array around the GPS antenna, and placing a sheet antenna between any two sub-antennas, the problem of poor radiation performance of the PCB antenna is solved, and a good radiation effect in multiple directions is achieved.
Patent Information
- Application Number
- CN202423262602.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In the prior art, PCB antennas have poor radiation performance and are easily affected by other antennas, especially in multi-antenna devices where it is difficult to guarantee the independent radiation performance of each antenna.
The GPS antenna is positioned in the center of the mounting substrate. The sub-antennas of the PCB antenna are arranged in a ring array around the GPS antenna, and a sheet antenna is placed between any two sub-antennas. The radiation effect is improved through a three-dimensional arrangement.
Independent radiation performance of each antenna was achieved, especially the radiation performance of the GPS antenna was not affected, while the PCB antenna had good radiation performance in multiple directions, improving the radiation pattern effect.
Smart Images
Figure CN223651638U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of antenna technology, and in particular to a multi-antenna device. Background Technology
[0002] Antennas transmit information via electromagnetic waves and are used in various devices such as handheld electronic devices, automobiles, and 5G base stations for information exchange and transmission. Larger devices, such as automobiles and 5G base stations, utilize a large number of antennas, requiring the integration of different functional antennas, such as PCB antennas, GPS antennas, and patch antennas, while ensuring that each antenna performs its specific function without being affected by others. PCB antennas, generally the cheapest option due to their printed design on circuit boards, suffer from poor radiation performance. Ensuring the radiation performance of PCB antennas remains a key technical challenge. Utility Model Content
[0003] The main purpose of this invention is to overcome the above-mentioned shortcomings and deficiencies of the prior art and to provide a multi-antenna device.
[0004] A multi-antenna device includes a mounting assembly and an antenna assembly mounted on the mounting assembly. The mounting assembly includes a mounting base, a pad disposed in the middle of the mounting base, and a plurality of mounting posts. The antenna assembly includes a GPS antenna, a patch antenna, and a PCB antenna. The GPS antenna is disposed on the plurality of mounting posts, and the pad is located below the GPS antenna. The PCB antenna includes an antenna base and a plurality of sub-antennas disposed on the antenna base. The antenna base is mounted on the mounting base, and the plurality of sub-antennas are arranged in a circular array with the GPS antenna as the center. The patch antenna is disposed on the antenna base and located between any two sub-antennas.
[0005] This invention separates the antenna assembly from the mounting assembly. The GPS antenna is mounted in the middle of the mounting substrate, and the sub-antennas of the PCB antenna are arranged in a ring array around the GPS antenna. At the same time, the sheet antenna is placed between any two sub-antennas. This ensures that the radiation performance of the GPS antenna is not affected, while also enabling the PCB antenna to have radiation performance in multiple directions, thereby improving the radiation field pattern effect.
[0006] In one embodiment, the sub-antenna includes a first radiating surface, a second radiating surface, and a third radiating surface. The first and second radiating surfaces are vertically mounted on the antenna substrate, perpendicular to each other and fixedly inserted. The third radiating surface is perpendicular to both the first and second radiating surfaces and fixedly inserted. By arranging the sub-antennas of the PCB antenna in a three-dimensional manner, and placing them on multiple intersecting radiating surfaces, the sub-antennas can achieve good radiation performance in the X, Y, and Z directions, resulting in better radiation performance compared to a single-board PCB antenna.
[0007] In one embodiment, the length of the first radiating surface is the same as the length of the third radiating surface.
[0008] In one embodiment, the third radiating surface and the second radiating surface extend in the direction of the GPS antenna.
[0009] In one embodiment, the distance from the end of the third radiating surface to the GPS antenna is greater than the distance from the end of the second radiating surface to the GPS antenna.
[0010] In one embodiment, the patch antenna includes a feed element, a support element, a first radiating element, a second radiating element, a first extension element, and a second extension element. The feed element is connected to the antenna substrate, and the support element is connected to the feed element. The first radiating element and the second radiating element are located on opposite sides of the support element. The first extension element is located below the first radiating element, and the second extension element is located below the second radiating element. The extension directions of the first extension element and the second extension element point towards the feed element.
[0011] In one embodiment, the distance between the first extension and the feeder is greater than the distance between the second extension and the feeder.
[0012] In one embodiment, the arrangement direction of the patch antenna is the same as the direction of the rays emitted by the GPS antenna. This ensures that the radiation direction of the patch antenna does not conflict with the radiation direction of the sub-antenna.
[0013] The advantages of this multi-antenna device are as follows: By separating the antenna assembly from the mounting assembly, with the GPS antenna mounted in the center of the mounting substrate, and the sub-antennas of the PCB antenna arranged in a ring array around the GPS antenna, while placing the sheet antenna between any two sub-antennas, the radiation performance of the GPS antenna can be guaranteed to remain unaffected. Simultaneously, the PCB antenna can radiate in multiple directions, improving the radiation pattern. Furthermore, by arranging the sub-antennas of the PCB antenna in a three-dimensional manner on multiple intersecting radiating surfaces, the sub-antennas can achieve good radiation in the X, Y, and Z directions, resulting in better radiation performance compared to a single-board PCB antenna. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the multi-antenna device of this utility model;
[0015] Figure 2 for Figure 1 An exploded view of the multi-antenna device of this utility model;
[0016] Figure 3 for Figure 2 An exploded view of the antenna assembly in the multi-antenna device of this invention;
[0017] Figure 4 for Figure 3 A partial structural diagram of the antenna assembly in the multi-antenna device of this utility model;
[0018] Figure 5 for Figure 3 A partial structural diagram of the antenna assembly in the multi-antenna device of this utility model;
[0019] Figure 6 for Figure 5 This invention presents a partial structural exploded view of the antenna assembly in a multi-antenna device. Detailed Implementation
[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0025] This utility model provides a multi-antenna device, including a mounting assembly and an antenna assembly mounted on the mounting assembly. The mounting assembly includes a mounting base, a pad disposed in the middle of the mounting base, and a plurality of mounting posts. The antenna assembly includes a GPS antenna, a patch antenna, and a PCB antenna. The GPS antenna is disposed on the plurality of mounting posts, and the pad is located below the GPS antenna. The PCB antenna includes an antenna base and a plurality of sub-antennas disposed on the antenna base. The antenna base is mounted on the mounting base, and the plurality of sub-antennas are arranged in a circular array with the GPS antenna as the center. The patch antenna is disposed on the antenna base and located between any two sub-antennas.
[0026] This utility model's multi-antenna device separates the antenna assembly from the mounting assembly. The GPS antenna is mounted in the center of the mounting substrate, and the sub-antennas of the PCB antenna are arranged in a ring array around the GPS antenna. At the same time, a sheet antenna is placed between any two sub-antennas. This ensures that the radiation performance of the GPS antenna is not affected, while also allowing the PCB antenna to have radiation performance in multiple directions, improving the radiation pattern effect. By arranging the sub-antennas of the PCB antenna in a three-dimensional form and placing them on multiple intersecting radiation surfaces, the sub-antennas can have good radiation effects in the XYZ directions, resulting in better radiation performance compared to a single-board PCB antenna.
[0027] Example
[0028] Please see Figure 1 and Figure 2 This utility model provides a multi-antenna device, including a mounting assembly 1 and an antenna assembly 2 mounted on the mounting assembly 1. The mounting assembly 1 includes a mounting base plate 11, a pad 12 disposed in the middle of the mounting base plate 11, and a plurality of mounting posts 13.
[0029] For more details, please refer to Figure 2 and Figure 3 Antenna assembly 2 includes a GPS antenna 21, a patch antenna 22, and a PCB antenna 23. The GPS antenna 21 is mounted on multiple mounting posts 13, and a pad 12 is located below the GPS antenna 21. The pad 12 has good electromagnetic shielding performance, which can effectively reduce electromagnetic wave leakage from the GPS antenna 21 and interference to the PCB antenna 23. Preferably, the pad 12 has honeycomb-shaped absorption holes. The PCB antenna 23 includes an antenna substrate 231 and multiple sub-antennas 232 mounted on the antenna substrate 231. The antenna substrate 231 is mounted on a mounting base 11, and the multiple sub-antennas 232 are arranged in a ring array with the GPS antenna 21 as the center. The patch antenna 22 is mounted on the antenna substrate 231 and located between any two sub-antennas 232.
[0030] This invention separates the antenna assembly 2 from the mounting assembly 1. The GPS antenna 21 is mounted in the middle of the mounting substrate 11, and the sub-antennas 232 of the PCB antenna 23 are arranged in a ring array around the GPS antenna 21. At the same time, the sheet antenna 22 is placed between any two sub-antennas 232. This ensures that the radiation performance of the GPS antenna 21 is not affected, while also enabling the PCB antenna 23 to have radiation performance in multiple directions, thereby improving the radiation field pattern effect.
[0031] For more details, please refer to Figure 4 The patch antenna 22 includes a feed element 221, a support element 222, a first radiator 223, a second radiator 224, a first extension element 225, and a second extension element 226. The feed element 221 is connected to the antenna substrate 231, and the support element 222 is connected to the feed element 221. The first radiator 223 and the second radiator 224 are located on both sides of the support element 222, respectively. The first extension element 225 is located below the first radiator 223, and the second extension element 226 is located below the second radiator 224. The extension directions of the first extension element 225 and the second extension element 226 are directed towards the feed element 221.
[0032] Preferably, the distance between the first extension 225 and the feed member 221 is greater than the distance between the second extension 226 and the feed member 221. The arrangement direction of the patch antenna 22 is the same as the ray direction emanating from the GPS antenna 21. This ensures that the radiation direction of the patch antenna 22 does not conflict with the radiation direction of the sub-antenna 232.
[0033] For more details, please refer to Figure 5 and Figure 6 The sub-antenna 232 includes a first radiating surface 2321, a second radiating surface 2322, and a third radiating surface 2323. The first and second radiating surfaces 2321 and 2322 are vertically mounted on the antenna substrate 231, perpendicular to each other and inserted and fixed. The third radiating surface 2323 is perpendicular to the first and second radiating surfaces 2321 and inserted and fixed, and parallel to the antenna substrate 231. By arranging the sub-antennas 232 of the PCB antenna 23 in a three-dimensional manner, and placing them on multiple intersecting radiating surfaces, the sub-antennas 232 can have good radiation effects in the X, Y, and Z directions, resulting in better radiation performance compared to a single-board PCB antenna. Preferably, the lengths of the first radiating surface 2321 and the third radiating surface 2323 are the same. The extension directions of the third radiating surface 2323 and the second radiating surface 2322 point towards the GPS antenna 21. The distance from the end of the third radiating surface 2323 to the GPS antenna 21 is greater than the distance from the end of the second radiating surface 2322 to the GPS antenna 21.
[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0035] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A multi-antenna device, characterized in that, include: A mounting assembly and an antenna assembly mounted on the mounting assembly. The mounting assembly includes a mounting base, a pad disposed in the middle of the mounting base, and a plurality of mounting posts. The antenna assembly includes a GPS antenna, a patch antenna, and a PCB antenna. The GPS antenna is disposed on the plurality of mounting posts, and the pad is located below the GPS antenna. The PCB antenna includes an antenna base and a plurality of sub-antennas disposed on the antenna base. The antenna base is mounted on the mounting base, and the plurality of sub-antennas are arranged in a circular array with the GPS antenna as the center. The patch antenna is disposed on the antenna base and located between any two sub-antennas.
2. The multi-antenna device according to claim 1, characterized in that: The sub-antenna includes a first radiating surface, a second radiating surface, and a third radiating surface. The first radiating surface and the second radiating surface are vertically mounted on the antenna substrate. The first radiating surface and the second radiating surface are perpendicular to each other and are inserted and fixed. The third radiating surface is perpendicular to the first radiating surface and the second radiating surface and is inserted and fixed.
3. The multi-antenna device according to claim 2, characterized in that: The length of the first radiating surface is the same as the length of the third radiating surface.
4. The multi-antenna device according to claim 2, characterized in that: The third radiating surface and the second radiating surface extend in the direction of the GPS antenna.
5. The multi-antenna device according to claim 2, characterized in that: The distance from the end of the third radiating surface to the GPS antenna is greater than the distance from the end of the second radiating surface to the GPS antenna.
6. The multi-antenna device according to claim 1, characterized in that: The patch antenna includes a feed element, a support element, a first radiating element, a second radiating element, a first extension element, and a second extension element. The feed element is connected to the antenna substrate, and the support element is connected to the feed element. The first radiating element and the second radiating element are located on both sides of the support element. The first extension element is located below the first radiating element, and the second extension element is located below the second radiating element. The extension directions of the first extension element and the second extension element point towards the feed element.
7. The multi-antenna device according to claim 6, characterized in that: The distance between the first extension and the feeder is greater than the distance between the second extension and the feeder.