基于互补屏的极化分离结构设计研究

以互补频率选择表面 (CFSS)结构的强耦合作用为基础, 设计一种具有极化分离作用的频率选择表面 (PSS), 当容性表面与感性表面沿周期排布方向具有横向位移时, CFSS成为具有TM带通、TE带阻的极化分离结构. 建立等效电路模型分析PSS结构极化分离原理, 采用耦合积分方程法计算极化分离结构的传输特性以及容性表面和感性表面的电场分布. 理论分析与实验测试结果均表明: PSS具有良好的极化分离特性和角度稳定性, 为极化波产生器和极化分离结构的设计提供借鉴. 关键词： 频率选择表面 极化选择 互补屏频率选择表面

Design and study of the polarization selective surface based on the complementary screens

Based on the strong coupling of the complementary frequency selective surface (CFSS), a frequency selective surface with polarization selective performance is presented. When there is lateral displacement along the periodic arrangement direction between the capacitive surface and the inductive surface, the CFSS becomes the polarization selective surface (PSS) with TM pass-band and TE stop-band filtering characteristics. The equivalent circuit model of the PSS is used to analyze its polarization selective mechanism. Its frequency responses and the electric field distribution on the capacitive and inductive surfaces have been simulated by the coupled integral equation method. The simulated and experimental results show that the PSS has good polarization selectivity, and it provides reference for the design of polarization wave generator and polarization filter.
Keywords： frequency selective surface polarization selective characteristics complementary frequency selective surface