Affiliation:
1. College of Mechanical Engineering, Xinjiang University, Urumqi 830047, China
2. Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China
Abstract
Microwave holographic measurement technology is a common method used in antenna measurement. This method has high measurement efficiency and high precision. To evaluate and enhance the antenna’s performance, it is crucial to precisely determine the surface deformation. In this paper, the effects of feed offset error and scanning error on the antenna microwave holographic measurement results are investigated, and corresponding error compensation methods are proposed. The relationship between the influence of the error sources on the antenna gain loss and surface deformation accuracy is established. The reasons for holographic measurement errors, their characteristics, and their specific impact on system performance can be better understood. In order to improve the accuracy of the measurement, the compensation methods for the different measurement errors are given. They can provide the theoretical basis for maintaining and enhancing the performance of antenna system.
Funder
Natural Science Foundation of Xinjiang Uygur Autonomous Region
National Natural Science Foundation of China
Tianchi Talents Program of Xinjiang
National Key Basic Research Program of China
Xinjiang Postdoctoral Foundation
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