强电磁脉冲对雷达接收机的天线耦合分析

摘要

针对强电磁脉冲可以通过天线、线缆及孔缝耦合方式进入雷达系统并造成威胁的问题,对强电磁脉冲经由"前门"耦合进入雷达系统的干扰机制进行了分析,给出了电磁脉冲对雷达天线的能量耦合公式,设计了雷达接收系统,并就强电磁脉冲对雷达接收机的干扰影响进行ADS仿真分析,最后提出了相应的抗电磁脉冲的防护措施.%Electromagnetic pulse causes serious threat by coupling with high energy into the radar system through the antenna,cable, gaps and so on. In this paper, the damage mechanism of electromagnetic pulse to radar through "front door" couple is analyzed, the antenna coupling formula of radars is given, and the interference effects on radar receiving system by EMP are simulated with ADS software. The measures of anti-EMP are proposed in the end.