Attitude adjustment method and attitude adjustment device for phased-array antenna during near-field testing

Abstract

The invention relates to an attitude adjustment method and an attitude adjustment device for phased-array antenna during near-field testing, and belongs to the technical field of antenna near-field testing. The attitude adjustment method comprises the following steps: controlling a measuring probe to walk for a circle along a rectangular route in a vertical plane, selecting a plurality of points of the measuring probe on the rectangular route and a plurality of corresponding points on a phased-array antenna, and obtaining the distance between two opposite points; calculating the azimuth angleand the pitch angle of the phased-array antenna according to the obtained distance between the two opposite points and the length and the width of the rectangular route; adjusting the azimuth angle ofthe phased-array antenna according to the obtained azimuth angle; and adjusting the pitch angle of the phased-array antenna according to the obtained pitch angle. The invention further provides an attitude adjustment device for phased-array antenna during near-field testing. The attitude adjustment method can realize adjustment of the position and attitude of the large phased-array antenna in thedarkroom during near-field testing, and improves the efficiency and progress of the near-field test of the phased-array antenna.

Description

technical field [0001] The invention belongs to the technical field of near-field testing of antennas, and in particular relates to an attitude adjustment method and an adjusting device during near-field testing of phased array antennas. Background technique [0002] After the phased array antenna is assembled and integrated, it needs to enter the darkroom for near-field testing. During near-field testing, it is necessary to adjust the relative position of the antenna and the probe to ensure that the distance between the probe and the antenna is not greater than a certain value, such as 1mm. Therefore, it is necessary to precisely adjust the position and attitude of the antenna in the darkroom. When adjusting the relative position of the antenna and the measuring head in the darkroom, it is necessary to adjust the position of the large-sized antenna and the adjustment of the antenna azimuth, pitch, and horizontal attitude in a small space, and the relative position accuracy...

AI Technical Summary

Problems solved by technology

[0003] At present, the main attitude adjustment method is to fix the phased array antenna through the assembly tooling, and then manually move the assembly tooling, adjust the length of the legs, etc., while adjusting and measuring, the accuracy is difficult to guarantee, and the efficiency is low.

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