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A broadband artificial magnetic conductor composite structure for radar cross section reduction

Lu Lei Qu Shao-Bo Ma Hua Xia Song Xu Zhuo Wang Jia-Fu Yu Fei

A broadband artificial magnetic conductor composite structure for radar cross section reduction

Lu Lei, Qu Shao-Bo, Ma Hua, Xia Song, Xu Zhuo, Wang Jia-Fu, Yu Fei
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  • Received Date:  15 June 2012
  • Accepted Date:  16 July 2012
  • Published Online:  05 February 2013

A broadband artificial magnetic conductor composite structure for radar cross section reduction

  • 1. Science College, Air Force Engineering University, Xi'an 710051, China;
  • 2. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant Nos. 60871027, 60901029, 61071058) and the National Basic Research Program of China (Grant No. 2009CB623306).

Abstract: We propose a broadband artificial magnetic conductor (AMC) composite structure for reducing radar cross section (RCS). By combining multiple periodic metal square patches together, we further broaden the working bandwidth of the AMC composite structure. The tested results indicate that the reflection is below -10 dB in a frequency range of 7.7—13.1 GHz, and the relative bandwidth is 51.9%. We study the scattering characteristics of the AMC composite structure at different frequencies by full wave simulation. Reflection peaks in the opposite quadrant bisector of plane shift close to the normal direction with the increase of frequency, but the backscattering RCS of the AMC composite structure is still about -8 dB smaller than that of the metal plate. The AMC composite structure has the advantages of broad working bandwidth, simple design, easy processing, etc, and has important application foreground.

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