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변형된 항아리형 초 광대역 패치안테나의 설계에 관한 연구

김선효;이영철
Kim, Sun-Hyo;Rhee, Young-Chul

  • 투고 : 2016.02.13
  • 심사 : 2016.03.24
  • 발행 : 2016.03.31

초록

본 논문에서는 변형된 항아리형 패치안테나를 사용하여 초 광대역 안테나를 구현하였다. 설계한 패치안테나의 물리적 길이와 홈(노치)를 광대역 특성 조건으로 최적화시켰으며, $10mm{\times}21.8mm$크기로 설계된 변형된 항아리형 패치안테나를 제작하였다. 설계된 최적화 패치안테나의 표면 전류분포를 분석하고 초 광대역 특성 조건을 만족함을 확인하였다. 실험 결과 제작된 초 광대역 패치안테나의 입력반사손실은 -10 dB 이하로 전압정재파비 역시 2 이하의 특성을 나타내었으며, 3.1~10.6 GHz 대역에서 약 1~3 dBi 이득범위를 나타내었다. 이와 같은 실험결과는 초 광대역 통신시스템에 활용이 가능할 것으로 판단된다.

키워드

초 광대역;패치 안테나;방사 패턴;반사 손실;전류밀도 분포

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