The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Electromagnetic Wave Absorbers with Metamaterial Structure for RCS Reduction

레이다 단면적 저감을 위한 메타물질 구조의 전자파 흡수체

  • Lee, Hong-Min (Department of Electronic Engineering, Kyonggi University)
  • 이홍민 (경기대학교 전자공학과)
  • Received : 2014.11.13
  • Accepted : 2014.12.15
  • Published : 2015.01.30
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Abstract

In this invited paper, the authors give an overview of the new design technology for a metallic backplane-less metamaterial(MM) absorber and discuss a selection of examples. In contrast to a common MM absorber structure, the metallic pattern layer of the presented structure is placed facing toward the incident wave propagation direction to reduce the radar cross section(RCS) due to the metallic pattern itself at frequencies other than the targeted absorption frequency bands. The ability of the MM backplane-less absorber to exhibit broadband absorption performance and irregular surface applications will be discussed.

본 초청 논문에서 저자는 금속의 접지 판이 없는 메타물질 흡수체에 대한 새로운 설계 기법을 제시하고, 몇 가지 설계 예를 검토하였다. 일반적인 메타물질 흡수체 구조와는 대조적으로 설계 목표로 설정된 흡수 주파수 대역 이외의 주파수에서도 메타물질 흡수체를 구성하는 금속 패턴 자체에서 전파 반사에 의한 레이다 단면적(RCS) 값을 감소시키기 위하여 흡수체 구조의 금속 패턴 층은 입사 전자파의 진행 방향과 평행하게 놓였다. 광대역 흡수특성을 나타내며, 곡면 구조에도 응용이 가능한 금속의 접지 판이 없는 메타물질 흡수체의 역량도 검토될 것이다.

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