Design of Absorptive/Transmissive Frequency-Selective Surface Based on Parallel Resonance

被引：265

作者：

Chen, Qiang ^{[1
]}

Yang, Shilin ^{[1
]}

Bai, Jiajun ^{[1
]}

Fu, Yunqi ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Elect Sci & Engn, Changsha 410073, Hunan, Peoples R China

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2017年 / 65卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Absorption; frequency-selective surface (FSS); parallel resonance; transmission; ABSORBER; TRANSMISSION; RADOME;

D O I：

10.1109/TAP.2017.2722875

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This communication presents a novel frequency-selective surface (FSS) with high in-band transmission at high frequency and wideband absorption at low frequency. It consists of a resistive sheet and a metallic bandpass FSS separated by a foam spacer. The resistive element is realized by inserting a strip-type parallel LC (PLC) structure into the center of a lumped-resistor-loaded metallic dipole. The PLC resonates at the passband of the bandpass FSS and exhibits an infinite impedance, which splits the resistive dipole into two short sections per the surface current; this setup allows for high in-band transmission at high frequency. Below the resonance frequency, the PLC becomes finite inductive and the entire FSS performs as an absorber with the metallic FSS as a ground plane. The surface current distribution on the resistive element can be controlled at various frequencies via the PLC structure. The wideband absorption and high in-band transmission of the proposed design are verified by both numerical simulation and experimental measurements. The potential extension to polarization-insensitive designs is also discussed.

引用

页码：4897 / 4902

页数：6

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