Absorptive Frequency-Selective Transmission Structures Based on Hybrid FSS and Absorber

被引：30
作者：
Huang, Hao [1 ,2 ]
Hua, Changzhou [3 ]
Shen, Zhongxiang [1 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[2] Acad Mil Sci PLA China, Natl Innovat Inst Def Technol, Beijing 100071, Peoples R China
[3] Ningbo Univ, Fac Elect Engn & Comp Sci, Ningbo 315211, Zhejiang, Peoples R China
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2022年 / 70卷 / 07期
关键词：
Absorption; Propagation losses; Resonant frequency; Bandwidth; Resistors; Periodic structures; Passband; Absorptive frequency-selective transmission (AFST) structure; frequency-selective surface (FSS); radome; rasorber; SQUARE-LOOP; RASORBER; DESIGN;
D O I：
10.1109/TAP.2022.3161472
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：
The replacement of lumped resistors with absorbing materials for absorptive frequency-selective transmission (AFST) structures enables a wider range of applications in low radar cross section (RCS) radomes. However, the transmission band within the absorption band for most absorbers is naturally nonexistent. It is shown that such a limitation can be overcome with the engineered frequency-selective surfaces (FSSs) and microwave absorbers to obtain a frequency response of absorption-transmission-absorption. In particular, a transmission window of low insertion loss within the absorption band is introduced by the integration of bandpass FSS and wideband absorber, while a bandstop FSS in the front minimizes the insertion loss in the passband. This design methodology is successfully demonstrated by two examples of AFST structures with single and dual polarizations.
引用
收藏
页码：5606 / 5613
页数：8
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