Single-layer angularly-stable bandpass frequency-selective surface with interdigital resonator

作     者：MA Xin LIU Yunzhe WAN Guobin PAN Aigang MA Xin;LIU Yunzhe;WAN Guobin;PAN Aigang

作者机构：School of Electronics and InformationNorthwestern Polytechnical UniversityXi’an 710129China School of Mechatronical EngineeringBeijing Institute of TechnologyBeijing 100081China 

出 版 物：《Journal of Systems Engineering and Electronics》 (系统工程与电子技术（英文版）)

年 卷 期：2021年第32卷第3期

页      面：559-565页

核心收录：

学科分类：1201[管理学-管理科学与工程(可授管理学、工学学位)] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 080902[工学-电路与系统] 08[工学] 0811[工学-控制科学与工程] 

基　　金：supported by the Aeronautical Science Foundation of China(2017ZF37005) the National Natural Science Foundation of China(62001389). 

主　　题：frequency selective surface(FSS) angular stability bandpass filter 

摘      要：A miniaturized periodic element for constructing bandpass frequency selective surface(FSS)independent of incident angles and polarizations is presented.An interdigital resonator(IR)with one extending finger to connect the two separate parts of the interdigital capacitor is explored to achieve parallel resonance.The equivalent circuit model(ECM)and electric field distributions are introduced to explain frequency performance of FSS.The whole structure has only one layer and possesses a low profile(a thickness of 0.0015λ,where λ represents the resonant wavelength in free space)as well as a small size(0.03λ×0.03λ).This FSS performs as a spatial bandpass filter which exhibits a great angular stability with incident angles ranging from 0° to 80° for both transverse electric(TE)and transverse magnetic(TM)polarizations.As an example,a prototype of one proposed FSS is fabricated and tested.The measured results show a good angular stability.