吸波材料强电磁环境效应研究  

Study on the Strong Electromagnetic Environment Effect of Absorbing Material

作　　者：王东红[1,2] 张晗 周必成[1,2] 王富生 马襄腾[3] 李克训 贾琨[1,2] Wang Donghong;Zhang Han;Zhou Bicheng

机构地区：[1]中国电子科技集团公司第三十三研究所 [2]电磁防护材料及技术山西省重点实验室 [3]西北工业大学力学与土木建筑学院

出　　处：《安全与电磁兼容》2022年第6期19-25,共7页Safety & EMC

基　　金：山西省关键核心技术和共性技术研发攻关专项(2020XXX020)。

摘　　要：以高功率微波电磁脉冲为代表的强电磁环境使得吸波材料的使用环境发生了极大改变,常规吸波材料因其低功率容量已不适用于大功率微波器件。文章综述了吸波材料强电磁环境效应的研究进展以及作者团队在该领域的主要研究成果。分析了吸波材料强电磁环境效应作用原理,采用仿真与实测结合的方式研究了强电磁环境下吸波材料的失效模式。结果表明,强电磁环境下的击穿效应、热效应及非线性效应是导致羰基铁/碳粉填充吸波橡胶失效的主要原因,而吸波超材料的周期结构优化、介质层高导热特性均有利于表面电流分布的均匀性,进而改善强电磁环境效应。最后提出了高功率微波电磁脉冲环境下吸波材料研究发展展望。The strong electromagnetic environment,represented by high power microwave electromagnetic pulse(HPM),has greatly changed the service environment of absorbing materials.The conventional microwave absorbing materials are not suitable for high power microwave devices because of their low power capacities.This paper summarized the research progress of strong electromagnetic environmental effects of microwave absorbing materials and the main research achievements of the author's team in this field,and also analyzed the mechanism of the electromagnetic environment effect of microwave absorbing materials.The failure modes of microwave absorbing materials under strong electromagnetic environment are also studied by combining simulation with measurement.The results show that the main reasons are the breakdown effects,thermal effects and nonlinear effects for the failure of carbonyl iron/carbon powder filled rubber in the strong electromagnetic environment.While the optimization of the periodic structure and the high thermal conductivity of the dielectric layers are beneficial to the uniformity of the surface current distribution of the meta-materials,and then improve the effect of strong electromagnetic environment.It is also pointed out the prospect of the research and development of microwave absorbing materials under high power EMP environment.

关 键 词：吸波材料 超材料 强电磁环境效应 高功率微波电磁脉冲(HPM) 

分 类 号：TB34[一般工业技术—材料科学与工程]