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http://dx.doi.org/10.7234/kscm.2010.23.2.017

Design and Fabrication of Semi-cylindrical Radar Absorbing Structure using Fiber-reinforced Composites  

Jang, Hong-Kyu (KAIST 기계항공시스템학부 항공우주공학)
Shin, Jae-Hwan (KAIST 기계항공시스템학부 항공우주공학)
Kim, Chun-Gon (KAIST 기계항공시스템학부 항공우주공학)
Shin, Sang-Hun (국방과학연구소 1기술3부1그룹)
Kim, Jin-Bong (한국기계연구원 부설 재료연구소 복합재료연구그룹)
Publication Information
Composites Research / v.23, no.2, 2010 , pp. 17-23 More about this Journal
Abstract
The stealth technology can increase the survivability of aircrafts or warships and enhance the capability of mission completion in hostile territory. The purpose of this paper is to present the low observable structure with curved surfaces made by fiber-reinforced composites and to show the possibility of developing omnidirectional stealth platforms for military applications. In this study, we developed a radar absorbing structures(RAS) based on a circuit analog absorber to reduce the radar cross section(RCS) of an object with curved surfaces. Firstly, the RAS with a periodic square patterned conducting polymer layer was designed and simulated using a commercial 3-D electromagnetic field analysis program. Secondly, the designed semi-cylindrical structure with low RCS was fabricated using fiber-reinforced composites and conducting polymer. To make the periodic pattern layer, acts as resistive sheet, the intrinsic conducting polymer paste containing PEDOT with a polyurethane binder was used. Finally, the radar cross section was measured to evaluate the radar absorbing performances of the fabricated RAS by the compact range facility in POSTECH.
Keywords
fiber-reinforced composites; radar absorbing structures; conducting polymer; circuit analog absorber; radar cross section;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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