类电磁诱导透明效应的入射不敏感频率选择表面研究  

Frequency selective surface with incidence insensitive properties mimicking electromagnetic induced transparency

作　　者：廖章奇[1] 丁凡[1] 徐峰[1] 冀航[1] 

机构地区：[1]中国舰船研究设计中心,湖北武汉430064

出　　处：《电子元件与材料》2016年第9期45-48,共4页Electronic Components And Materials

摘　　要：基于微波频段内的类电磁诱导透明效应（MimicElectromagneticInducedTransparency,MEIT），设计了一种对入射电磁波不敏感的频率选择表面（FrequencySelectiveSurface，FSS）。对频率选择表面在不同入射角度（0°～80°）以及不同极化方式（TE、TM）下的透射、反射特性进行数值仿真；同时通过仿真频率选择表面的表面电流分布以及能流分布，分析了频率选择表面中类电磁诱导透明效应产生的物理机制。结果表明，类电磁诱导透明效应的非相干特性，使得设计的频率选择表面在所需频段内表现出极强的入射稳定性，对入射电磁波的入射角度以及极化方式均不敏感，在雷达天线罩领域具有潜在的应用价值。An incidence-insensitive frequency selective surface （FSS） was designed, which was based on the mimic electromagnetic induced transparency （MELT） within microwave frequency band. The transmission and reflection properties were numerically simulated in the conditions of TE and TM polarizations, and incident angles sweeping from 0° to 80°. Meanwhile, the insight physical pictures of FSS＇s mimic electromagnetic induced transparency were illustrated by the ways of simulating surface current and power flow distributions. Results indicate that the designed FSS could present strong incidence stable properties, including insensitive incident angles and polarizations, becausse of the incoherent mimic electromagnetic induced transparency. This could be potentially used in the field ofradomes.

关 键 词：微波频段 频率选择表面 类电磁诱导透明 极化稳定 角度稳定 雷达天线罩 

分 类 号：TN820.1[电子电信—信息与通信工程]