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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Analysis of Multilayer Slab with Lossy Metamaterials

손실 특성의 메타 물질이 포함된 다층 구조 Slab의 특성 분석

  • Lee, Kyung-Won (Dept. of Electrical and Electronics Engineering, Yonsei University) ;
  • Hong, Ic-Pyo (Dept. of Information and Communication Engineering, Kongju University) ;
  • Chung, Yeong-Chul (Defense Agency Technology and Quality) ;
  • Yook, Jong-Gwan (Dept. of Electrical and Electronics Engineering, Yonsei University)
  • Published : 2008.12.31
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Abstract

In this paper, we analyzed the multilayer structure with lossy metamaterials using ABCD Matrix method to get the transmission characteristics. Compared to the recursive method which cannot be used to analyze the lossy characteristics of multilayer structure because of its complexity, we used the ABCD matrix method is easy to apply because of its matrix chain concepts for arbitrary number of multilayer structure and lossy material. To verify the results of this paper, we used both for multilayer dielectric and metamaterial, respectively, and obtained the same results. Multilayer structure with lossy metamaterial showed minimized ripple and broadband transmission compared to dielectric multilayered structure. This can be used in various applications as antenna radome and shielding material, etc.

본 논문에서는 손실 특성을 갖는 메타 물질로 구성된 다층 구조 slab의 특성을 해석하였다. 기존 메타 물질을 가진 다층 구조 해석은 recursive 방법을 이용했으며, 계산의 복잡성으로 인한 무손실을 가정할 수밖에 없었지만, 본 논문에서는 손실 메타 물질을 갖는 다층 구조를 해석하기 위해 해석 방법이 간단하고, 임의의 다층 구조를 갖는 물질에 대한 전파 특성을 쉽게 얻을 수 있는 ABCD 행렬을 이용하였다. 적용한 ABCD 행렬 방법의 유효함을 검증하기 위해서 유전체-유전체로 구성된 구조와 메타-유전체 물질로 구성된 다층 구조에 적용하여 기존의 recursive 방법과 비교하였다. 본 논문에서 해석한 손실 메타 물질을 갖는 다층 구조는 유전체 다층 구조보다 리플이 없고 광대역 전송 특성을 얻을 수 있다는 장점이 있으며, 안테나의 레이돔이나 전파를 차폐할 수 있는 차폐 물질 등에 다양하게 적용될 수 있다.

Keywords

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