一种基于大动态微波功率测量的雷达天线方向图测试方法

A Radar Antenna Pattern Test Method Based on Large Dynamic Range Microwave Power Measurement

本文提供了一种雷达天线方向图新的测试方法,利用大动态范围的微波小功率计,最低可测量出微瓦级的功率信号,直接测量雷达天线各个方位接收到的功率信号,解决了传统的雷达天线方向图测试方法步骤繁多、测量误差大、动态范围小等不足,适用于具有良好电子对抗要求的新型低副瓣或极低副瓣雷达天线的方向图测试,完全满足工程测试的需要。

A new radar antenna pattern test method is proposed, that is, to directly measure power signals received by the radar antenna at azimuth by using of a microwave low power - meter with large dynamic range, the low power - meter is capable of measuring low power signal at microwatt level. Comparing with traditional antenna pattern test method, this method can overcome disadvantages such as too many test procedures, large measurement error and limited dynamic range. The test method is applicable for pattern test of low/ultra - low side - lobe radar antenna with good electronic counter countermeasure （ECCM） performance; it can fully meet requirements of practical engineering.