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

  • 제20권3호
  • /
  • Pages.280-288
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  • 2009
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  • 1226-3133(pISSN)
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  • 2288-226X(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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S-대역 선형 배열 안테나의 급전 회로를 위한 스트립라인 10-출력 전력분배기

A Stripline 10-Way Power Divider for the Feed Network of an S-band Linear Array Antenna

  • Park, Il-Ho (Department of Radio Science and Engineering, Chungnam National University) ;
  • Kim, Rak-Young (Department of Radio Science and Engineering, Chungnam National University) ;
  • Park, Jung-Yong (Department of Radio Science and Engineering, Chungnam National University) ;
  • Jeong, Myung-Deuk (Agency for Defence and Development) ;
  • Kim, Dong-Wook (Department of Radio Science and Engineering, Chungnam National University)
  • 발행 : 2009.03.31
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초록

본 논문에서는 좁은 빔 특성을 가지고 35 dB 이상의 부엽 레벨(Side Lobe Level: SLL)을 가지는 Chebyshev 전류 분포의 선형 배열 안테나를 위한 고전력, 저손실의 스트립라인 10-출력 전력분배 기를 설계, 제작하였다. T-junction 전력분배기를 기본 구조로 하여 단위 셀을 설계하였고, 설계된 단위 셀을 결합하여 전체 전력분배기를 설계하였다. 설계 시 특성 개선을 위하여 다중 임피던스 변환기와 변형된 링 하이브리드 구조를 적용하였고 커넥터 구조의 변경을 통한 동축선로-스트립라인 천이 구조의 개선으로 반사 및 삽입 손실 특성을 개선하였다.

In this paper, a high-power and low-loss stripline 10-way power divider is designed and fabricated fur the feed network of an S-band linear array antenna with Chebyshev current distribution which has a narrow beam width and low side lobe level(SLL) of 35 dB or more. The unit cell of the power divider is based on a T-junction power divider and the whole divider is comprised of the cascaded unit cells. The multi-stage impedance transformer and modified ring hybrid are used in designing the power divider for performance improvement. And the reflection loss and insertion loss are improved by modifying a connector structure for a coaxial-to-stripline transition.

키워드

참고문헌

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