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Three-axis antenna test turntable system with low reflection characteristic

A three-axis antenna and low-reflection technology, which is applied to radio wave measurement systems, antenna radiation patterns, and measurement devices, can solve problems that cannot completely eliminate electromagnetic wave reflection interference and affect the accuracy of radar antennas, so as to save labor costs and improve Test efficiency, reduce the effect of electromagnetic interference

Pending Publication Date: 2017-07-21
JIUJIANG PRECISION MEASURING TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The airborne radar and radome are the core components of the aircraft. When using a conventional antenna test turntable, the antenna support parts are made of metal materials, and the pitch shaft system is supported in a U-shaped structure. Therefore, all exposed surfaces of the turntable must be tested before testing. Paste a large number of absorbing materials to absorb electromagnetic waves; to reduce the interference caused by reflected electromagnetic waves, but this method cannot completely eliminate the reflected interference of electromagnetic waves, and will still affect the accuracy of radar antenna performance testing

Method used

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  • Three-axis antenna test turntable system with low reflection characteristic
  • Three-axis antenna test turntable system with low reflection characteristic
  • Three-axis antenna test turntable system with low reflection characteristic

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Embodiment

[0032]A three-axis antenna test turntable system with low reflection characteristics, including: load 1, rolling load mounting plate 2, rolling four-point contact ball turntable bearing with external teeth 3, rolling driving gear 4, rolling planetary reducer 5. Rolling servo motor 6, rolling frame 7, pitching right rail 8, pitching left rail 9, pitching upper bracket 10, pitching lower bracket 11, pitching slider bracket 12, pitching servo motor 13, pitching left end cover 14, pitching Drive gear 15, pitching right-angle reducer 16, pitching four-point contact ball turntable bearing 17, pitching right end cover 18, pitching main shaft 19, pitching right slider 20, pitching left slider 21, pitching frame 22, azimuth reducer bracket 23, Azimuth reducer adapter plate 24, azimuth planetary reducer 25, azimuth driving gear 26, azimuth servo motor 27, azimuth reducer dust cover 28, azimuth four-point contact ball turntable bearing 29, azimuth spindle gasket 30, azimuth bearing seat ...

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Abstract

The invention discloses a three-axis antenna test turntable system with a low reflection characteristic, which is composed of three parts of a rolling shaft system assembly, a pitching shaft system assembly and an azimuth shaft system assembly, wherein the azimuth shaft system assembly is arranged on a microwave anechoic chamber ground through an azimuth base; the pitching shaft system assembly is fixedly connected with the outer ring of an azimuth four-point contact ball turntable bearing through a pitching frame lower flange face by using a screw; the rolling shaft system assembly is fixedly connected with the upper end face of a pitching upper support through a rolling frame lower flange face by using a screw; and a load is arranged on a rolling load mounting plate. Movement of three degrees of freedom rotation of rolling, pitching and azimuth can be realized, accurate positioning at a specified angle position can be realized, and the system of the invention has the advantages of practicality, stability and reliability.

Description

technical field [0001] The invention relates to a three-axis antenna test turntable system with low reflection characteristics, especially a three-axis antenna turntable system with low reflection characteristics, which can be applied to radar performance testing in microwave anechoic chambers, especially for microwave anechoic chamber antennas or Radome testing. Background technique [0002] The three-axis antenna test turntable is an important test equipment in the development process of radar antennas. It is used to simulate the space attitude movement of the product under test, and has good rotation accuracy to ensure the practicability, stability and reliability of the entire test system. It plays a key role in the development of airborne radar. [0003] The airborne radar and radome are the core components of the aircraft. When using a conventional antenna test turntable, the antenna support parts are made of metal materials, and the pitch shaft system is supported in...

Claims

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Application Information

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IPC IPC(8): G01S7/40G01R29/10
CPCG01R29/105G01S7/40Y02E10/50
Inventor 刘喜平李科黄茗潘能微吕智李力
Owner JIUJIANG PRECISION MEASURING TECH RES INST
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