Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Design of Dual-band Frequency Selective Surface Applicable to Wi-Fi 6E System

Wi-Fi 6E 시스템에 적용 가능한 이중대역 주파수 선택표면 구조 설계

  • Yun-Seok Mun (Dept. of Smart Information Technology Engineering, Kongju National University) ;
  • Sung-Sil Cho (Dept. of Smart Information Technology Engineering, Kongju National University) ;
  • Ic-Pyo Hong (Dept. of Smart Information Technology Engineering, Kongju National University)
  • Received : 2023.03.09
  • Accepted : 2023.03.23
  • Published : 2023.03.31
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Abstract

In this paper, a dual-band stopband frequency selective surface that can be applied to Wi-Fi 6E systems is designed to block external interfering signals with adjacent operating frequency spectrum in indoor wireless LAN environments. The proposed frequency selective surface structure has frequency blocking characteristics in the 2.4GHz and 6GHz bands, and is realized through a modified crossed dipole structure and an interlocking puzzle form between unit structures. The proposed structure is designed to have stable frequency response characteristics with respect to incident angle and polarization, and the experimental results show good agreement with the simulation results for incident waves from 0° to 45°.

본 논문에서는 실내 무선랜 환경에서 인접한 동작 주파수 스펙트럼을 가진 외부 간섭신호를 차단하기 위해 Wi-Fi 6E 시스템에 적용할 수 있는 이중대역 차단 주파수 선택표면을 설계하였다. 제안한 주파수 선택적 표면 구조는 2.4GHz 대역과 6GHz 대역에서 주파수 차단 특성을 가지며, 변형된 교차 쌍극자 구조와 단위 구조간 서로 맞물린 퍼즐 형태를 통해 구현되었다. 제안한 구조는 입사각과 편파에 대해 안정적인 주파수 응답 특성을 갖도록 설계되었으며, 제작 및 실험으로부터 0°~45°의 입사파에 대해 시뮬레이션에서 얻은 결과와 잘 일치하는 것을 확인하였다.

Keywords

Acknowledgement

This work was supported in part by the Basic Science Research Program under Grant 2020R1I1A3057142, in part by the Priority Research Center Program through the National Research Foundation under Grant 2019R1A6A1A03032988, and in part by the Underground City of the Future Program funded by the Ministry of Science and ICT.

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