Combined radar feed source adjusting device

Abstract

The invention discloses a combined feed source adjusting device. The combined feed source adjusting device comprises a common mounting substrate and a plurality of single feed source adjusting supports, each of the single-feed-source adjusting supports comprises two guide rails with translational degrees of freedom, a rotating shaft with a rotational degree of freedom and an L-shaped feed source mounting support. All the single-feed-source adjusting supports are installed on the common mounting substrate, and the common installation substrate provides an X-direction translation guide rail suchthat each single-feed-source adjusting support can independently move in the X direction. Each single-feed-source adjusting support comprises a Y-direction translation guide rail, a translation guiderail forming an included angle alpha with a plane X-Z, and a rotating shaft around the Y-axis direction. According to the device, a plurality of feed sources can be rapidly and continuously positioned in a large position adjustment range, the antenna test time is shortened, and the antenna test efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of radar antenna feeder, and relates to a device for adjusting the position of a feed source during the antenna feeder test process. Background technique [0002] In the debugging and testing process of the radar antenna system, in order to obtain better test results of telecommunication performance, it is often necessary to repeatedly adjust the position of the feed source. Affected by the insufficient precision of the antenna reflective surface and the complex structure of the antenna system, after the antenna system is assembled, the actual position of the feed source often deviates from the theoretically designed position. At this time, an adjustment that can realize multi-degree-of-freedom adjustment is required The device can easily and quickly adjust the position of the feed source to achieve the best telecommunication performance. The commonly used feed position adjustment method is mainly realized ...

AI Technical Summary

Problems solved by technology

The commonly used feed position adjustment method is mainly realized by adding or subtracting spacers on the basis of the processed feed source bracket. Continuous displacement adjustment, the adjustment accuracy depends on the thickness of the gasket; second, the method of adding and subtracting gaskets is suitable for small-scale position adjustment, and cannot meet the requirements when the feed source position adjustment range is large

[0003] In order to solve the above problems, in the patent "A Feed Source Positioning and Defocusing Device for Compact Field Measurement", a device that relies on motor drive for feed source positioning is invented. Although the device can be adjusted within a large range However, it also has the following disadvantages: 1. The device can locate up to two feed sources at the same time, but the positions of the two feed sources cannot be adjusted independently; 2. After the feed source position is determined, it does not consider The follow-up mechanical positioning design only relies on the brake force of the motor to maintain the position of the feed source, and the positioning reliability is low

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