紧缩场暗室高功率吸波材料应用研究  

Research on the Application of High-power Absorber in Compact Field Chamber

作　　者：邬家旺 Wu Jiawang

机构地区：[1]中国空空导弹研究院

出　　处：《安全与电磁兼容》2024年第6期30-34,共5页Safety & EMC

基　　金：国防基础科研计划重点项目(JCKY2023205B011)。

摘　　要：传统紧缩场暗室吸波材料的耐受功率已不能满足有源天线的测试需求。由于高功率吸波材料成本较高,暗室全覆盖高功率吸波材料并不现实。文章根据电磁吸波原理,通过理论推导得到吸波材料需要承受的最大照射功率及有源天线的高功率照射区域,优化了紧缩场暗室内高功率吸波材料的排布方式。紧缩场暗室的实测数据表明,吸波材料能耐受高功率辐射,8~40 GHz的反射率达到-40 dB,单位面积耐受辐射功率大于5 kW/m^(2),兼顾成本的同时,满足有源天线的测试需求。The power tolerance of traditional compact chamber absorber can no longer meet the testing requirements of active antennas.Due to the high cost of high-power absorber,it is not feasible to fully cover the chamber with high-power absorber.Based on the principle of electromagnetic absorption,the article theoretically derives the maximum irradiation power that the absorber needs to withstand and the high-power irradiation area of the active antenna,and optimizes the arrangement of high-power absorber in the compact field chamber.The measured data in the compact field chamber shows that the absorber can withstand high-power radiation,with a reflectivity of-40 dB at 8~40 GHz and a radiation power tolerance of over 5 kW/m^(2).It meets the testing requirements of active antennas while considering cost.

关 键 词：紧缩场 有源天线 高功率吸波材料 耐受功率 反射率 

分 类 号：TN820[电子电信—信息与通信工程] O441.4[理学—电磁学]