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Improving Low Elevation Gain Anti-Jamming Antenna Array

An antenna array, low-elevation technology, applied in the directions of antenna coupling, independent antenna unit combination, radiating element structure, etc., can solve the problems of impossible symmetry of the reflecting surface, high machining accuracy, complex production process, etc., to meet the requirements of low profile Increased gain, antenna isolation, and reduced mutual coupling effects

Active Publication Date: 2016-08-17
深圳市朗赛微波通信有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these antennas have a low profile and can be miniaturized, microwave plate antennas are expensive, their production process is complex, the distribution of dielectric constant is poor, the processing accuracy is relatively high, and the performance of the antenna is easy to deteriorate after being heated. In the design of large array antennas, the application is difficult
[0004] In the Beidou anti-jamming system, in addition to meeting the standing wave, operating bandwidth, and axial ratio, the performance of the antenna unit is more important in the actual test of the antenna system to meet the gain requirements of the low profile of the antenna and the gain out-of-roundness requirements. However, in the design of the array antenna, the reflective surfaces around the antenna elements around the reflector cannot be symmetrical, resulting in a certain influence on the out-of-roundness of the antenna elements in the low-profile gain

Method used

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  • Improving Low Elevation Gain Anti-Jamming Antenna Array
  • Improving Low Elevation Gain Anti-Jamming Antenna Array
  • Improving Low Elevation Gain Anti-Jamming Antenna Array

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Embodiment 1

[0031] like Figure 1-Figure 3 As shown, the present invention improves a low-elevation-angle gain anti-interference antenna array, which includes a plurality of antenna units 1 and coaxial connectors 2, and the coaxial connectors 2 are connected to the antenna units 1, and each antenna unit 1 has a certain distance from each other , the antenna unit 1 includes a dielectric radiator 1-1, an antenna pad 1-2, a dielectric circuit board 1-3 and a circuit board support 1-4, the dielectric circuit board 1-3 is arranged on the circuit board support 1-4, and the antenna The gasket 1-2 is arranged between the reflective surface of the dielectric radiator and the reflective surface of the circuit board, and is connected as a whole by gluing or welding. Wherein, the dielectric radiator 1-1 adopts radiation ceramics, the dielectric circuit board adopts a PCB circuit board, and the antenna spacer is a metal spacer. The layout of multiple antenna units in the antenna array is as follows: ...

Embodiment 2

[0039] like Image 6 and Figure 7 As shown, in this embodiment, the layout of multiple antenna units in the antenna array is as follows: an antenna unit 7 is set in the middle as a transceiver system, and at least four antenna units 8-a, 8-b, 8- c, 8-d as the receiving system. The antenna unit set in the middle is a Beidou transceiver antenna system composed of stacked layers of the receiving system and the transmitting system, and a metal gasket is set between the layers of the receiving system and the transmitting system.

[0040] Image 6 It is a top view of another embodiment of the present invention. The antenna unit as the transceiver system and the antenna unit as the transmitting system are arranged on a circular chassis, and the antenna unit as the transmitting and receiving system is arranged at the center of the circular chassis. As the antenna unit of the transmitting system The number of antenna units is 4, centered on the center of the circular chassis, and d...

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Abstract

The invention discloses an anti-interference antenna array capable of increasing bottom elevation gains. The anti-interference antenna array is characterized by comprising a plurality of antenna units and a coaxial connector. The coaxial connector is connected with the antenna units, and the antenna units are arranged at certain intervals and comprise medium radiating bodies, antenna gaskets, medium circuit boards and circuit board supports, wherein the medium circuit boards are arranged on the circuit board supports, the antenna gaskets are arranged between the reflection surfaces of the medium radiating bodies and the reflection surfaces of the circuit boards, and the antenna gaskets, the medium radiating bodies and the circuit boards are connected into a whole in a gluing or welding mode. The anti-interference antenna array has the advantages that low profile gains of the antenna units are high, isolation of the antenna units is high, the requirements for the performance of various receiving and transmitting antennae is met, machining is convenient to conduct due to the integrated design, and the antenna array is suitable for massive production.

Description

technical field [0001] The invention relates to the technical field of antennas, and more specifically relates to a Beidou antenna array which can be applied to an anti-jamming system and each unit has a low profile and high gain. Background technique [0002] In the airborne missile data link system, anti-jamming capability and low-profile gain are key indicators. At present, the array antenna technology is one of the effective means to further improve the system's anti-interference ability, so the application of the array antenna technology in the data link system of the flying missile has also become a key point. [0003] Most of the circularly polarized antennas currently used in the Beidou system and GPS (Global Positioning System) use antennas made of imported microwave board materials to achieve circular polarization and miniaturization. Although these antennas have a low profile and can be miniaturized, microwave plate antennas are expensive, their production proces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/52H01Q21/30
Inventor 陈智达廖林梁伟均
Owner 深圳市朗赛微波通信有限公司