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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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UWB Antenna with Band Stop Characteristic in UNII Band

UNII 밴드에서 대역 저지 특성을 갖는 초광대역 안테나

  • Roh Yang-Woon (Department of Electric & Computer Engineering Hanyang University) ;
  • Chung Kyung-Ho (Department of Electric & Computer Engineering Hanyang University) ;
  • Choi Jae-Hoon (Department of Electric & Computer Engineering Hanyang University)
  • 노양운 (한양대학교 전자전기컴퓨터공학과) ;
  • 정경호 (한양대학교 전자전기컴퓨터공학과) ;
  • 최재훈 (한양대학교 전자전기컴퓨터공학과)
  • Published : 2005.02.01
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Abstract

A novel ultra wideband microstrip-fed circular patch antenna having band stop characteristic in UNII band is presented. The band stop characteristic is realized by inverted-U shaped slot. The range of stop bandwidth can be adjusted by changing the length of the slot. The measured impedance bandwidth of the proposed antenna is from 2.9 GHz to 12.1 GHz with the stop band from 4.9 GHz to 6 GHz for VSWR<2. This antenna shows a monopole-like radiation pattern and flat gain characteristic throughout the operating frequency band.

UNII(Unlicensed National Information Infrastructure) 밴드에서 대 역 저지 특성을 갖는 새로운 형태의 UWB 통신용 마이크로스트립 급전 원형 패치 안테나를 제안한다. 안테나의 대역 저지 특성은 inverted-U 슬랏을 이용하여 구현한다. 제안한 안테나는 inverted-U 슬랏의 길이를 변화시켜 대역 저지 주파수 범위를 결정한다. 측정된 안테나의 대역폭은 VSWR<2를 기준으로 $2.9\~12.1GHz$에 걸쳐 광대역 특성을 만족하며 $4.9\~6GHz$ 부근에서 대역저지 특성을 갖는다 안테나의 복사 패턴은 모포폴과 비슷한 전 방향성 특성을 나타내며 전 동작 주파수 대역에 걸쳐 균일한 이득 특성을 갖는다.

Keywords

References

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