基于裂缝谐振环周期结构的频率选择表面  

Frequency Selective Surface Based on Aperture of Periodic Split Ring Resonators

作　　者：孙维[1] 赵俊明[1] 冯一军[1] 

机构地区：[1]南京大学,南京210093

出　　处：《微波学报》2007年第3期14-16,共3页Journal of Microwaves

基　　金：国家重点基础研究发展规划(973)项目(2004CB719805);教育部博士点基金(20030284024)项目

摘　　要：介绍了一种利用裂缝谐振环构成的缝隙型频率选择表面。使用有限元法对这种频率选择表面的电波传输特性进行了全波仿真分析。同时,提出了简单的L-C等效电路模型,并结合巴比涅原理分析预测了这种频率选择表面的谐振频率。分析结果表明,频率选择表面的谐振频率由单元结构决定,受单元周期的影响较小,而且透射波具有沿垂直于裂缝方向的极化选择性。实验测量结果与理论分析吻合。In the presented paper, frequency selective surface （FSS） has been designed, fabricated and measured based on aperture of split ring resonator （SRR） structure. Full-wave analysis using the finite-element method has been carfled Out to study the electromagnetic transmission and reflection of the FSS. Simple L-C equivalent circuit model is applied to analyze SRR and the transmission behavior of SRR aperture can be easily obtained by utilizing the Babinet principle. The resonance of the SRR aperture only occurs for incident wave with a non-vanishing component of the electric field perpendicular to the gaps of the SRR structure. The resonant frequency is dominated by the geometric structure of the FSS elements, less by the periodicity of the elements. Furthermore, experimental results have been presented for the transmission coefficient of the FSS, which show good correlation to the simulations.

关 键 词：频率选择表面 等效电路模型 极化选择 裂缝谐振环 

分 类 号：TN751[电子电信—电路与系统]