The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Design of Paper-Based Reconfigurable Frequency Selective Surface for Spectrum Control of Indoor Environments

실내 공간 스펙트럼 제어를 위한 종이기반 재구성 주파수 선택구조 설계

  • Cho, Sung-Sil (Kongju National University Department of Information and Communication Engineering) ;
  • Hong, Ic-Pyo (Kongju National University Department of Information and Communication Engineering)
  • Received : 2016.04.26
  • Accepted : 2016.06.20
  • Published : 2016.07.31
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Abstract

In this paper, we presented the paper-based reconfigurable frequency selective surface(FSS) for transmitting or blocking the wireless LAN signal in indoor environments. The proposed reconfigurable FSS are designed on coated paper using a printing of conductive ink and conductive adhesive for PIN diode, which provides ON/OFF of the reconfigurable FSS for passing or blocking the 5GHz signal. The reconfigurable FSS attached on the wall can pass or block the incident wireless signal as the received signal strength in indoor. To provide the validity of the proposed FSS, we fabricated the reconfigurable FSS on the paper and confirmed the very similar results between simulations and measurements. From the measured results of the proposed spectrum control system, we know that the proposed reconfigurable FSS can block about 20dB at 5.745GHz~5.805GHz.

본 논문에서는 실내 전파 환경에서 5GHz 대역 무선LAN 신호를 투과 또는 차단하기 위한 종이기반 재구성 FSS를 설계하였다. 5GHz 대역에서 핀 다이오드의 ON/OFF 상태에 따라 통과 또는 차단이 가능한 재구성 FSS를 잉크젯 프린팅기법과 전도성 접착제를 이용하여 종이 위에 설계하였으며, 실내 환경을 가정한 공간 벽면에 적용하여 외부로부터 입사된 무선LAN 신호를 측정하여 신호의 세기에 따라 투과 또는 차단할 수 있는 제어 시스템을 설계하였다. 설계한 재구성 FSS 구조는 입사각과 편파에 대해 안정된 특성을 가지며, 설계결과를 검증하기 위하여 잉크젯 프린팅 방식으로 재구성 FSS를 제작하였다. 제작된 FSS 구조의 재구성동작을 측정을 통해 확인하고, 실내공간에 부착하여 실내공간에 유입되는 5GHz 대역 무선LAN 신호세기에 따라 FSS 구조가 재구성동작이 되는 시스템을 구현하고 측정을 통하여 확인하였다. 측정을 통하여 제작된 재구성 FSS 구조가 IEEE 802.11n의 5GHz 무선LAN 대역 중 5.745GHz~5.805GHz 대역의 신호를 약 20dB 차단하는 성능을 가짐을 확인하였다.

Keywords

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