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天线测量是天线研究过程中一项重要而又繁杂的工作,在对高性能雷达天线的研制过程中,离不开一套高精度的天线测试系统。影响天线测试系统精度的因素很多,从测量环境微波暗室、天线发射控制系统、天线接收控制系统等几方面设计了一种多通道天线测试系统,用来测量和分析天线辐射特性的各种电磁参数。设计完成的测试系统具有测量灵敏度高、动态范围大、测量误差小、抗干扰能力强和天线原始数据采集速度快的特点,具有一次性扫描测量就可获得多频点、多通道天线数据的能力。
Antenna measurement is an important and complicated work in the research of antenna. In the process of developing high-performance radar antenna, it is inseparable from a set of high-precision antenna test system. There are many factors that affect the accuracy of the antenna test system. A multi-channel antenna test system is designed from several aspects such as the measurement environment of the microwave anechoic chamber, the antenna transmission control system, the antenna receiving control system, etc. to measure and analyze various electromagnetic parameters of the antenna radiation characteristics . The designed test system has the advantages of high measurement sensitivity, large dynamic range, small measurement error, strong anti-interference ability and fast antenna data acquisition, and the ability to obtain multi-frequency and multi-channel antenna data with one-time scanning and measurement .