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High gain and broad bandwidth antenna design using cylindrical magneto material

원통형 자성체를 이용한 고이득 및 광대역 안테나 설계

  • Lee, Ji-Chul (Graduate school of National Korea Maritime University) ;
  • Min, Kyeong-Sik (Department of Radio Science and Engineering, National Korea Maritime University)
  • 이지철 (한국해양대학교 대학원) ;
  • 민경식 (한국해양대학교 전파공학과)
  • Published : 2010.02.28

Abstract

This paper describes patch antenna design method of antenna high gain and broad bandwidth using cylindrical magneto material around feeding line. Strong current induction method applied combination to generate magnetic fields around feeding line for antenna high gain characteristic and principle of PIFA designed application for design of antenna broadband. In case of single CMM, gain increased 3.96 dB compare with the reference antenna gain however bandwidth characteristic not increased compare with the reference antenna. In case of dual CMM, gain improved about 10 dB compare with the reference antenna and -10 below bandwidth is 700 MHz(50 MHz~750 MHz) with this paper designed high gain characteristic.

본 논문은 패치 안테나의 급전선 주위에 원통형 자성체을 이용하여 안테나의 고이득 및 광대역 안테나 설계법에 대해서 기술한다. 안테나의 고이득 설계를 위해서 급전선 주위에 생기는 자기장과 원통형 자성체 주위에 생기는 자기장을 결합시켜 급전선에 강한 전류를 유도시키는 방법을 사용하였고, 안테나의 광대역 설계를 위해서 shorting 스티브를 추가한 PIFA의 원리를 적용하여 설계하였다. 단일 원통형 자성체의 경우, 참고 안테나와 비교하여 3.96 dB 이득이 증가하였으나 대역폭 특성은 개선되지 않았다. 이중 원통형 자성체의 경우, 참고 안테나와 비교하여 이득은 약 10 dB 개선되었으며, -10 dB 이하 대역폭은 700 MHz(50 MHz~750 MHz)로써 광대역 특성을 가지는 안테나를 설계하였다.

Keywords

References

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