基于电阻膜与超材料的超薄宽频吸波体设计  

Design of an ultrathin and wideband absorber based on resistance film and metamaterial

作　　者：张泽奎[1,2] 王东红 王蓬[1,2] 李宝毅 ZHANG Zekui;WANG Donghong;WANG Peng;LI Baoyi(The 33th Institute of China Electronics Technology Group Corporation,Taiyuan 030032,China;Shanxi Key Laboratory of Electromagnetic Protection Material and Technology,Taiyuan 030032,China)

机构地区：[1]中国电子科技集团公司第三十三研究所,太原030032 [2]电磁防护材料及技术山西省重点实验室,太原030032

出　　处：《功能材料》2018年第4期4213-4216,共4页Journal of Functional Materials

基　　金：国家重点基础研究发展计划(973计划)资助项目(2013CBA01700);国家国际科技合作专项资助项目(2014DFR10020);山西省青年科技研究基金资助项目(2015021083);中国电子科技集团公司山西省重点实验室专项资金资助项目(ZX15ZS391);中国电子科技集团公司山西省重点实验室专项资金资助项目(ZX15ZS392)

摘　　要：设计了一种基于多层电阻膜和超材料的超薄宽频吸波体模型。该吸波体由两层含介质基板的电阻膜片和一层一阶Minkowski分形双方环(minkowski fractal double square loop,MFDSL)电谐振器结构组成,各层电阻膜片阻值相同,但外形不同。仿真分析结果表明,该吸波体对1.2~20GHz频段内垂直入射的电磁波的吸收率均大于90%;同时对于45°角入射的TE和TM波仍能保持良好的吸收性能,具有宽入射角特性和极化不敏感的特点,且厚度仅有1mm。另外,对不同电阻膜片阻值得分析结果表明,随着电阻膜片阻值的增大,该吸波体的吸波效果更好,吸波性能更加稳定。In this paper,an ultrathin and wideband composite absorber is designed,which is based on resistance film and metamaterial.The absorber is composed of one order Minkowski fractal double square loop(MFDSL)electric resonator structure and two resistance film layers containing dielectric substrates.The two resistance film layers have different structure but with the same square resistance.The simulation analysis shows that the absorption of the composed structure absorber is greater than 90%in a frequency range of 1.2-20 GHz.The simulated absorptions under different polarization conditions and incident angles indicate that this composite structure absorber is polarization-insensitive and of wide-angle.And the thickness of this composed structure is just 1 mm.The further numerical simulation results indicate that the absorption of this absorber originates mainly from the absorbing mechanism of circuit resonance.The bigger square resistance,the better absorbing property is obtained.

关 键 词：电阻膜 超材料 超薄 宽频带 吸波 

分 类 号：TN011[电子电信—物理电子学]