Design of thin circuit-analogue multilayer absorber and application to leading edge of wing structure

Author

Choi, W.H. ; Shin, J.H. ; Song, T.H. ; Kim, Jin Bae ; Lee, W.J. ; Joo, Y.S. ; Kim, Chun-Gon

Author_Institution

Dept. of Aerosp. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

Volume

49

Issue

3

fYear

2013

fDate

Jan. 31 2013

Firstpage

216

Lastpage

217

Abstract

A new thin multilayer circuit-analogue (CA) absorber design consisting of a patterned resistive sheet, glass/epoxy, and glass/MWCNT-epoxy for X-band radar is presented. The proposed thin multilayer CA-absorber (a total thickness of 2.23 mm) has smaller thickness by 0.71 mm than a single-layer CA-absorber (a total thickness of 2.93 mm). Although the absorption bandwidth of the multilayer CA-absorber in the X-band was slightly narrower than the single-layer CA-absorber, the absorption performance of the multilayer CA-absorber was comparable to that of the single layer. Also, when the CA-absorber was applied to the leading edge of a wing-shaped structure, the radar cross-section level was comparable with the single-layer CA-absorber even though the thickness of the multilayer CA-absorber was less than that of the single-layer CA-absorber.

Keywords

absorption; carbon nanotubes; radar cross-sections; X-band radar; absorption bandwidth; glass/MWCNT-epoxy; patterned resistive sheet; radar cross-section level; thin circuit-analogue multilayer absorber; thin multilayer CA-absorber; wing structure;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2012.3983

Filename

6457580