An Ultrathin and Broadband Radar Absorber Using Resistive FSS

Author

Li, Mei ; Xiao, ShaoQiu ; Bai, Yan-Ying ; Wang, Bing-Zhong

Author_Institution

Inst. of Appl. Phys., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

748

Lastpage

751

Abstract

An ultrathin and broadband radar absorber comprising single-layer resistive frequency selective surface (FSS) is investigated in this letter. The resistive FSS layer constructed from resistive/low-conductivity treble-square loops is backed by a grounded foam material. Numerical results show that the proposed absorber can provide a 10-dB radar cross section (RCS) reduction for the conducting plate over the frequency range of 10.7-29 GHz, which is equivalent to a relative bandwidth of 92.2%. Moreover, the structure has the thickness of 2 mm (only 0.071 to 0.193 at lowest and highest frequencies, respectively). The equivalent circuit model is then used to introduce the working principles of the proposed absorber.

Keywords

frequency selective surfaces; radar absorbing materials; radar cross-sections; low-conductivity treble-square loops; radar cross section reduction; resistive FSS; single-layer resistive frequency selective surface; ultrathin broadband radar absorber; Absorption; Bandwidth; Equivalent circuits; Frequency selective surfaces; Radar cross section; Resonant frequency; Frequency selective surface (FSS); radar absorbing material (RAM); thin and broadband absorber; treble-square loops;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2206361

Filename

6226825