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 Film-Type Frequency Selective Surface Structure Based on Printed Electronic Technology to Implement Frequency-Selective Space in Buildings

건물 내 주파수 선택적 공간 구현을 위한 인쇄전자 기술 기반 필름형 주파수 선택 표면구조 설계

  • Lee, In-Gon (Department of Information & Communication Engineering, Kongju National University) ;
  • Yoon, Sun-Hong (IT Application Research Center, Korea Electronics Technology Institute) ;
  • Hong, Ic-Pyo (Department of Information & Communication Engineering, Kongju National University)
  • 이인곤 (국립공주대학교 정보통신공학부) ;
  • 윤선홍 (전자부품연구원) ;
  • 홍익표 (국립공주대학교 정보통신공학부)
  • Received : 2017.10.10
  • Accepted : 2017.11.18
  • Published : 2017.12.29
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Abstract

In this paper, a frequency selective surface(FSS) with bandstop operation for radio-frequency spectrum management is presented. The proposed FSS is composed of patterns of fractal-based miniaturized unit cells for stable performance for angles of incidence and polarizations. For practical applications requiring high productivity and environmental compatibility, we fabricated a film-type FSS by screen-printing using Ag ink, rather than a conventional manufacturing method using a printed circuit board. To validate this study, we measured the transmission characteristics of the proposed FSS using the free-space measurement method, and observed the received strength of signal penetrating the FSS film applied to a wall.

본 논문에서는 건물 내에서 통신성능 저하의 원인이 되는 인접 채널의 신호를 제어하기 위해 대역 저지 특성을 갖는 주파수 선택 표면구조를 설계하였다. 제안된 구조는 입사파의 편파 및 입사각에 안정적인 주파수 특성 구현을 위해 프랙탈 형상 기반의 소형화된 단위구조를 사용하였으며, 실제 적용성을 고려, 적은 제작비용으로 대량생산이 용이한 인쇄전자 기술을 이용하여 얇은 필름형 주파수 선택 표면구조를 제작하였다. 전통적인 회로제작 방식인 PCB 공정이 아닌 전도성 Ag 잉크를 이용한 스크린 프린팅 공정을 통해 생산성 및 환경성을 개선하였으며, 설계한 결과를 바탕으로 자유공간 측정을 통해 입사파의 편파 및 입사각에 대한 안정적인 특성을 검증하고, 실제 건물 내벽에 적용 후, 수신 신호강도 측정을 통해 주파수 선택 성능을 확인하였다.

Keywords

References

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