一种多层胶板雷达吸波材料  

A Multilayer Rubber Board Radar Absorbing Material

作　　者：何山[1] 李业华[1] 周淳[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《航空材料学报》2016年第4期41-46,共6页Journal of Aeronautical Materials

基　　金：航空科学基金(20143121003)

摘　　要：依据阻抗匹配原理,设计了具有＂陷阱＂结构的多层吸波材料。通过方案优化,设计出五层结构的吸波材料,该材料在2~18 GHz频段内具有双吸收峰的宽带吸收特性。改变第五层的厚度,可以调整高频吸收峰的位置,而对低频吸收峰影响不大。应用阻抗圆图,直观显示了三种设计方案的阻抗变换情况。研制的JB-5多层吸波材料,在6~17 GHz频段内,反射率≤-12 d B,材料厚度小于5.0 mm,并有良好的耐环境性能。该吸波材料可在实验室制作,根据需要裁剪成一定形状,用专用黏结剂粘贴在目标体表面,能有效降低目标对雷达波的反射。Based on the theory of impedance matching,a multilayer absorbing material with the＂pitfall＂structure was designed. The multilayer absorbing material with 5 layers was obtained by optimization of the schemes,and the material shows 2 absorbing peaks in the broadband of 2 ~ 18 GHz frequencies. The peak in high frequencies can be adjusted with no effect on the peak in low frequencies through changing the thickness of the fifth layer. The changes of input impedances were displayed by analyzing the impedance chart.The prepared multilayer absorbing material was named JB-5,which processes the reflectivity no more than- 12 d B in 6 - 17 GHz with the thickness no more than 5 mm and a good performance of standing the environment. The absorbing material can be produced in laboratory and pasted on surfaces of target with special adhesive by trimmed into required shapes so as to reduce the reflection of electromagnetic waves effectively.

关 键 词：阻抗匹配 陷阱结构 宽带吸收 阻抗圆图 

分 类 号：TQ336.41[化学工程—橡胶工业]