小型化高稳定性频选设计与等效电路分析  

Miniaturized High Stability FSS Design and Equivalent Circuit Analysis

作　　者：徐娟[1] 赵敏[1] 赵建平[1] XU Juan;ZHAO Min;ZHAO Jianping(School of Cyber Science and Engineering,Qufu Normal University,Qufu 273165,China)

机构地区：[1]曲阜师范大学网络空间安全学院,山东曲阜273165

出　　处：《聊城大学学报（自然科学版）》2022年第1期57-63,共7页Journal of Liaocheng University:Natural Science Edition

基　　金：国家自然科学基金青年项目(61701278)资助。

摘　　要：提出一种基于等效电路模型(Equivalent circuit model,ECM)的频率选择表面(Frequency Selective Surface,FSS)设计方法,分别设计了单频和双频频率选择表面。根据金属贴片与电感,缝隙与电容的对应关系,分别设计了工作在100GHz的带通型方环形FSS,工作在100GHz和150GHz的双频带通型"箭头+Y"形FSS。针对不同的入射角度和极化方式,分析了双频"箭头+Y"形频选的滤波性能。该双频FSS在入射角度为0°~45°时能保持良好的角度稳定性,在TE、TM模式呈现极化不敏感性。将两款频选的全波分析结果与等效电路结果相比较,两者吻合良好,进一步验证了等效电路方法的正确性和有效性。This paper proposes a frequency selective surface(FSS)design method based on equivalent circuit model(ECM),and designs single-band and dual-band FSS respectively.According to the corresponding relationship between the metal patch and the inductance,the gap and the capacitance,the band-pass square ring FSS working at 100 GHz and the dual-band pass"arrow+Y"FSS working at 100 GHz and 150 GHz are designed respectively.For different incident angles and polarization modes,the filtering performance of the dual-band"arrow+Y"type FSS is analyzed.The dual-band FSS can maintain good angular stability when the incident angle is 0°~45°,and exhibits polarization insensitivity in TE and TM modes.Comparing full-wave analysis results with the equivalent circuit results of two FSS units,the two are in good agreement,which further verifies the correctness and effectiveness of the equivalent circuit method.

关 键 词：等效电路 带通形频选 全波仿真 入射角度 极化方式 

分 类 号：TN92[电子电信—通信与信息系统]