相控阵测控系统中无源互调的测试和预防  

Testing and Prevention of Passive Intermodulation in Phased Array TT&C System

作　　者：王鑫亮[1] 钟军涛[1] 李其强 WANG Xinliang;ZHONG Juntao;LI Qiqiang(The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《计算机与网络》2023年第16期57-61,共5页Computer & Network

摘　　要：阐述了无源互调产生的机理,分析了无源互调对相控阵测控系统的影响。通过对几种常用的无源互调(Passive Intermodulation,PIM)测试方法的对比研究与分析,结合相控阵测控系统自身特点,设计并实现了基于“再辐射式”的PIM测试方法的测试系统,采用多种补偿方式将系统的PIM水平降低到可接受的程度,保证了相控阵测控系统的正常工作。The mechanism of passive intermodulation is described and the influence of passive intermodulation on phased array TT&C system is analyzed. Through the comparative study and analysis of several commonly used Passive Intermodulation (PIM)test methods, combined with the characteristics of phased array TT&C system, a test system based on "re-radiation" PIM test method is designed and implemented. The PIM level of the system is reduced to an acceptable level by various compensation methods. The normal operation of phased array TT&C system is ensured.

关 键 词：相控阵测控系统 无源互调 测试和预防 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]