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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Design of Flexible Reconfigurable Frequency Selective Surface for X-Band Applications

유연한 구조를 갖는 X-Band 재구성 주파수 선택구조 설계

  • Lee, In-Gon (Department of Information & Communication Engineering, Kongju National University) ;
  • Park, Chan-Sun (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Yook, Jong-Gwan (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Park, Yong-Bae (Department of Electrical & Computer Engineering, Ajou University) ;
  • Chun, Heung-Jae (Department of Mechanical Engineering, Yonsei University) ;
  • Kim, Yoon-Jae (Agency for Defense Development) ;
  • Hong, Ic-Pyo (Department of Information & Communication Engineering, Kongju National University)
  • 이인곤 (공주대학교 정보통신공학부) ;
  • 박찬선 (연세대학교 전기전자공학부) ;
  • 육종관 (연세대학교 전기전자공학부) ;
  • 박용배 (아주대학교 전자공학과) ;
  • 전흥재 (연세대학교 기계공학부) ;
  • 김윤재 (국방과학연구소) ;
  • 홍익표 (공주대학교 정보통신공학부)
  • Received : 2016.10.10
  • Accepted : 2016.12.18
  • Published : 2017.01.31
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Abstract

In this paper, the X-band reconfigurable frequency selective surface having flexible geometry was proposed. The proposed RFSS is composed of patterns of cross-shaped loop with inductive stub, which can control the frequency response for C-Band and X-band by ON/OFF state of PIN diode. To minimize the parasitic effect and to obtain the high level of isolation between the unit cell of FSS and the bias circuit, we designed the grid type bias line on bottom layer through via hole. The measured transmission characteristics show good agreement with the simulation results and good stability of frequency response for different incident angles and curvatures of surface.

본 논문에서는 휘어짐이 가능한 유연한 기판 위에 X-대역에서 동작하는 PIN 다이오드 기반 재구성 주파수 선택 표면구조 (RFSS)를 설계하였다. 제안된 구조는 윗면에 십자형 루프 패턴과 인덕턴스 성분의 스터브 사이에 위치한 PIN 다이오드의 전기적 제어를 통해 C-대역(OFF)과 X-대역(ON)에 대한 주파수 재구성이 가능하며, 그리드 형태의 전원 바이어스 회로와 비아홀구성을 통해 기생 결합을 최소화함으로써 단위구조와의 격리도를 확보하였다. 설계한 결과를 바탕으로 유연한 필름기판위에 제안한 RFSS 를 제작하고, 측정 실험을 통해 입사파의 편파와 입사각 그리고 단일 곡률을 갖는 곡면에 대한 안정적인 투과 특성을 확인하였다.

Keywords

References

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