Journal of the Korean Institute of Telematics and Electronics D (전자공학회논문지D)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Design of broad-band radar absorbing materials using multi-layered lossy dielectrics

다층 손실 유전체를 이용한 광대역 전파 흡수체 설계

  • 이동근 (한양대학교 전자통신학과) ;
  • 남기진 (한양대학교 전자통신공학과, 국립 원주전문대학 전자통신과) ;
  • 이상설 (한양대학교 전자전기공학부)
  • Published : 1997.03.01
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Abstract

Broad-band RAM's (Radar absorbing materials) are designed by multi-layered lossy dielectrics. The depth, the relative permittivity and the loss tangent of each layer are optimized in order to meet the required reflective power over the specified frequency range using a genetic algorithm. The reflection coefficients are calculated by the continued fraction method. A new population model of the partial initialization method during iterations is applied for the multi-modal functions to enhance the performance of the genetic algorithm. The optimal RAN's are designed by setting the relative permittivity and the loss tangent of the dielectrics as a funtion of the frequency over 5~20GHz.

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