Design of an Ultra-Thin Magnetic-Type Radar Absorber Embedded With FSS

Author

Chen, Hai-Yan ; Zhang, Hui-Bin ; Deng, Long-Jiang

Author_Institution

State Key Lab. of Electron. Thin Film Integrated Device, Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

9

fYear

2010

fDate

7/2/1905 12:00:00 AM

Firstpage

899

Lastpage

901

Abstract

In this letter, the design of an ultra-thin magnetic-type radar absorber (RA) having good absorbing performance at low frequency is demonstrated. A 2-mm-thick RA with an operating bandwidth of 1.5-2.2 GHz is obtained on the basis of polymer composites filled with carbonyl iron and Co₂Z ferrite. The use of frequency selective surfaces (FSSs) results in a significant increase of operating bandwidth of the RA. By selecting the unit dimensions of FSS and its location in RA, a maximal operating bandwidth can be obtained. Experimental results are presented and compared to numerical simulations, and they demonstrated that the RA embedded with FSS has a significantly increased bandwidth of 1.19-2.89 and 1.08-3.02 GHz for the single-layer or double-layer case.

Keywords

composite materials; frequency selective surfaces; polymers; radar absorbing materials; radar antennas; carbonyl iron; frequency selective surfaces; polymer composites; ultra-thin magnetic-type radar absorber; Bandwidth; Frequency selective surfaces; Magnetic separation; Materials; Radar cross section; Reflectivity; Frequency selective surfaces (FSSs); low frequency; radar absorber (RA); thin; wideband;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2010.2076344

Filename

5579992