CN-122026067-A - Multi-antenna device

Abstract

The application provides a multi-antenna device which comprises a plurality of different antenna units, a power supply body with a power supply interface and a radiator with a plurality of radiation surfaces, wherein the power supply interface can be matched with the plurality of different antenna units, the radiator is movably arranged on the power supply body so that the radiator can rotate relative to the power supply body, the plurality of different antenna units are mutually independent, each radiation surface is provided with a corresponding antenna unit, and the radiator can drive the plurality of different antenna units to rotate according to a preset condition so as to switch any one of the different antenna units to be communicated with the same power supply interface. The multi-antenna device is arranged on the plurality of radiating surfaces in a one-to-one correspondence manner, so that the plurality of different antenna units can be quickly switched along with the rotation of the radiator, and the multi-antenna device has the advantages of simple structure, low cost, convenience in maintenance, wide scene suitability, high switching reliability and high anti-interference performance.

Inventors

• PAN HONGDONG

Assignees

• 深圳市信维通信股份有限公司

Dates

Publication Date

20260512

Application Date

20260327

Claims (10)

1. 1. A multiple antenna device comprising a plurality of different antenna elements, further comprising: The antenna comprises a power supply body, a plurality of antenna units and a plurality of antenna units, wherein the power supply body is provided with a power supply interface which can be matched with the plurality of different antenna units; A radiator having a plurality of radiating surfaces, the radiator being movably mounted on the power feed so that the radiator can rotate relative to the power feed; the plurality of different antenna units are mutually independent, and each radiation surface is provided with a corresponding antenna unit; The radiator can drive a plurality of different antenna units to rotate according to a preset situation so as to switch any one of the different antenna units to be communicated with the same feed interface.
2. 2. The multi-antenna device of claim 1, wherein the radiator and the feed are of a split construction.
3. 3. The multi-antenna device of claim 1, wherein the power feed is non-rotatable and the radiator is rotatable relative to the power feed.
4. 4. The multi-antenna device according to claim 1, wherein a plurality of the antenna elements are different in frequency band and/or system.
5. 5. The multi-antenna device of claim 1, further comprising: The connecting piece is arranged at the top end of the power supply body, and the radiator is in movable connection with the power supply body through the connecting piece.
6. 6. The multi-antenna device according to claim 5, wherein the radiator has opposite upper and lower surfaces in a first direction, and a mounting hole penetrating the upper and lower surfaces is opened inside the radiator; The radiator is of a polyhedral structure extending along the first direction, and the first direction is orthogonal to the normal directions of the plurality of radiating surfaces.
7. 7. The multi-antenna device of claim 6, wherein the connector comprises at least: A fixed portion mounted on a tip of the power feeder; and the rotating part is inserted into the mounting hole of the radiator so that the radiator can rotate relative to the feed body.
8. 8. A multi-antenna device as claimed in any one of claims 1-7, wherein the feed has a feed structure and any one of the different antenna elements is electrically connected to the same feed interface by the feed structure.
9. 9. The multi-antenna device of claim 8, wherein the feed structure comprises at least: One end of the feeder line is communicated with any one of different antenna units, and a feeding point is arranged at the other end of the feeder line; And the grounding wire is electrically connected with the feed point, so that the grounding wire is used as a feed point of the feed structure.
10. 10. The multi-antenna device according to any one of claims 1 to 7, wherein the power feeder has a fixed mounting position, and the power feeder forms a communication connection with a communication terminal or an external device through the fixed mounting position.

Description

Multi-antenna device Technical Field The invention relates to the technical field of wireless communication, in particular to a split and rotary multi-antenna device. Background With the rapid development of wireless communication technology, the communication requirements of multi-band, multi-system and multi-scene adaptation have become core requirements of terminal antenna design. In the prior art, the scheme adopted by the traditional multi-antenna device mainly comprises an array antenna combination, a multi-band shared radiator design, an electrically-tunable switch type antenna structure and the like, but the scheme is difficult to meet the requirements of miniaturization, switching reliability and signal transmission stability in practical application. In the prior art, the array antenna combination scheme integrates a plurality of independent antenna units into a single plane carrier, so that the design not only can cause the defect of large overall volume of the multi-antenna device adopting the array antenna combination scheme, but also can easily cause electromagnetic coupling interference among the antenna units on the multi-antenna device adopting the array antenna combination scheme, thereby reducing the radiation efficiency of the multi-antenna device adopting the array antenna combination scheme. In the prior art, the design scheme of the multi-band shared radiator covers multiple bands through a single radiation structure, and although the design realizes miniaturization of the multi-antenna device adopting the design scheme of the multi-band shared radiator, the design is limited by the structure of the radiator, and impedance matching and radiation performance of each band are difficult to be simultaneously considered, so that the multi-antenna device adopting the design scheme of the multi-band shared radiator has the defects of partial frequency band signal attenuation and standing wave ratio increase. Aiming at the switching requirement of multiple antennas, the prior art adopts an electrically tunable switching circuit to realize the switching of different antenna units, such as a tuning switching structure based on a radio frequency switch and a variable capacitor, and the design can realize the switching of the antenna functions, but electronic devices such as the radio frequency switch and the like are easy to be subjected to electromagnetic interference, so that the switching of the antenna units has the defects of response delay, poor contact and complex circuit structure. In the prior art, most of rotary multi-antenna devices are rotation direction-adjusting of single antenna units, or simply switching of two antenna units is realized, and integrated design of multi-surface independent antenna units is not adopted, so that diversified communication requirements of multiple scenes cannot be met. In the prior art, each side face of the tetrahedron or pyramid type multi-antenna device is a uniform reflection net or radiation face, no design of multi-face independent antenna units exists, no split structure is arranged, and switching of different antenna units cannot be realized through rotation. In the prior art, the split type multi-antenna device only optimizes the structural layout of a feed network, and does not combine a mechanical rotating structure to realize the switching control of multiple antennas. In summary, the conventional multi-antenna device for switching different antenna units has the disadvantages of large size, poor switching stability and easy coupling interference. Disclosure of Invention The invention provides a multi-antenna device, which aims to solve at least part of defects of the existing multi-antenna device. The invention provides a multi-antenna device. The multi-antenna device includes a plurality of different antenna elements, further including: The antenna comprises a power supply body, a plurality of antenna units and a plurality of antenna units, wherein the power supply body is provided with a power supply interface which can be matched with the plurality of different antenna units; A radiator having a plurality of radiating surfaces, the radiator being movably mounted on the power feed so that the radiator can rotate relative to the power feed; the plurality of different antenna units are mutually independent, and each radiation surface is provided with a corresponding antenna unit; The radiator can drive a plurality of different antenna units to rotate according to a preset situation so as to switch any one of the different antenna units to be communicated with the same feed interface. In some embodiments, the radiator and the power feed are of a split structure. In some embodiments, the power feed is non-rotatable and the radiator is rotatable relative to the power feed. In some embodiments, the plurality of antenna units are different in frequency bands and/or different in system. In some embodiments, the multi-antenna device further compr