Proceedings of the Korean Institute of Navigation and Port Research Conference (한국항해항만학회:학술대회논문집)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Study on Development of High Performance Microwave Absorber Using Natural Lacquer Binder

옻칠을 소재로한 고성능 전파흡수체의 개발에 관한 연구

  • 김동일 (한국해양대학교 전파공학과) ;
  • 최동한 (한국해양대학교 전파공학과) ;
  • 구동우 (한국해양대학교 전파공학과) ;
  • 김도연 (한국해양대학교 전파공학과) ;
  • 옥승민 (한국해양대학교 전파공학과) ;
  • 양은정 (한국해양대학교 전파공학과) ;
  • 김보영 (한국해양대학교 전파공학과)
  • Published : 2002.03.01
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Abstract

In this paper, we explain new EM(electromagnetic) wave absorber that mixed NC (Natural Ceramics) and Ferrite with NL(Natural Lacquer). At first, a mixed NC and Ferrite(NC : F = (0.1~30)wt% : (99.9~70)wt%) bum at 95$0^{\circ}C$~125$0^{\circ}C$. And then, it is comminuted and injected into NL((NC+F) . NL = (30~80)wt% (70~20)wt%), finally we made Ferrite-NL EM wave absorber. Generally, conventional labor Ferrite covers only 500 MHz to 10 GHz under tolerance limits of 2 to 6 dB in absorption, and Ferrite-NL is over 8 ~ 14 dB. However, NCFerrite-NL huts superior absorption ability. It is over 16 to 19 dB through 500 MHz to 10 GHz.

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