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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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A Circular Micro-Strip Patch Antenna Using a PBG

광 밴드 갭(Photonic Band Gap) 구조를 응용한 원형 마이크로스트립 패치 안테나

  • Lee Bong-Geol (School of Electrical Engineering, University of Ulsan) ;
  • Jung Chun-Suk (School of Electrical Engineering, University of Ulsan) ;
  • Woo Jong-Woon (School of Electrical Engineering, University of Ulsan) ;
  • Ahn Sang-Chul (School of Electrical Engineering, University of Ulsan)
  • 이봉걸 (울산대학교 전자공학과) ;
  • 정천석 (울산대학교 전자공학과) ;
  • 우종운 (울산대학교 전자공학과) ;
  • 안상철 (울산대학교 전자공학과)
  • Published : 2005.11.01
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Abstract

Studied antenna's basic structure was circular micro-strip patch antenna. Bandwidth was broaden and back-radiation pattern was decreased because studied antenna had PBG on a ground for improvement in its defect which is skin-effects. And character of antenna according to different shape of PBG was observed. Finally, air-gap whose dielectric constant is lower than substrates was added between substrates sc respond frequency was higher despite small size antenna.

원형 마이크로스트립 안테나를 기본 구조로 하고 단점인 표면파의 영향을 개선하기 위해 접지면에 광 밴드 갭 구조를 취하여 대역폭을 늘리고 안테나의 후방 방사를 줄였다. 또한 광 밴드 갭의 형태를 각기 달리하여 그에 따른 안테나 특성의 변화를 관찰하였다. 끝으로 유전체 사이에 비유전율이 유전체보다 낮은 공기층을 삽입하여 전체적인 비유전율을 낮게 만들어 작은 크기로 높은 응답 주파수 특성을 보였다.

Keywords

References

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