전자공학회논문지SC (Journal of the Institute of Electronics Engineers of Korea SC)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

금속섬유 복합재료의 부하저항에 따른 분산특성

The Effect of the Load Resistance on Dispersion Characteristics of Metal-Fiber Composites

  • 서동욱 (국방기술품질원 대구센터1팀)
  • 투고 : 2011.07.07
  • 심사 : 2012.05.09
  • 발행 : 2012.05.25
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초록

최근에 소개된 능동 FSS(active frequency selective surface) 또는 ESS(electromagnetic smart screen)는 2차원 금속섬유 복합재료에서 금속섬유의 부하저항을 변화시킴으로써 복합재료의 분산특성을 변경시키는 기술이다. 본 논문에서는 부하저항의 변화에 따른 ESS의 분산특성을 효율적으로 계산하기 위해 GEC(generalized equivalent conductor) 기법을 기반으로 수정하여 적용한다. 부하저항에 따른 ESS의 투과계수와 유효유전율을 1~40 GHz의 범위에서 시뮬레이션 한다. 또한, 부하저항을 변경함으로써 공진주파수와 대역폭을 변경할 수 있음을 보인다.

In this paper, an efficient means to estimate the dispersion characteristics of active FSS (or ESS) is presented. We numerically investigate the effective permittivity and the transmission coefficient of 2D metal-fiber composites using linear-lumped impedance loading. We modify the GEC method which is applied to 2D fiber composite material with arbitrary fiber orientation. We show that by varying the impedance value it is possible to control the resonance frequency of the array as well as the bandwidth.

키워드

참고문헌

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