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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.
Based on the strong coupling of complementary frequency selective surface (CFSS) structure, a frequency selective surface (PSS) with polarization separation is designed. When the capacitive surface and the inductive surface have a lateral displacement along the periodic arrangement, the CFSS And become a polarization separation structure with TM band pass and TE bandstop.Equivalent circuit model is established to analyze the principle of polarization separation of PSS structure and the coupling integral equation method is used to calculate the transmission characteristics of polarization separation structure and the electric field of capacitive and inductive surfaces Distribution.The theoretical analysis and experimental results show that PSS has good polarization separation and angular stability and can provide reference for the design of polarized wave generator and polarization separation structure.