한국전자통신학회논문지 (The Journal of the Korea institute of electronic communication sciences)

한국전자통신학회 (Korea Institute of Electronic Communication Science)
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해상통신용 VHF 안테나 설계

Design of VHF Antenna for Marin Communication

  • 투고 : 2014.03.14
  • 심사 : 2014.05.15
  • 발행 : 2014.05.31
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초록

본 논문에서는 해상 무선 통신 시스템에 적용 가능한 모노폴 구조의 VHF 안테나를 설계 및 제작 하였다. 제안된 안테나는 모노폴 구조를 기본으로 원형 환 구조 그리고 미앤더 구조를 결합함으로서 VHF 대역에서 동작 가능하도록 설계하였다. 최적화된 파라메타를 얻기 위해 상용 툴(HFSS)을 사용하여 시뮬레이션 하였으며 안테나 성능에 민감하게 작용하는 파라메타를 찾아내서 최적화된 수치를 얻었다. 얻어진 최적화된 수치를 사용하여 제안된 안테나를 제작하였다. 측정결과, -10dB 임피던스 대역폭을 기준으로 VHF 대역을 만족하고 있음을 확인하였으며 원하는 대역에서 측정된 이득과 방사패턴의 특성을 얻었다.

In this paper, a VHF antenna with monopole structure is designed and fabricated for marine wireless communication applications. The proposed antenna is based on a monopole design, and composed of circular ring and meander structure for VHF operation which cover VHF frequency bands. To obtain the optimized parameters, we used the simulator, Ansoft's High Frequency Structure Simulator(HFSS) and found the parameters that greatly effect antenna characteristics. Using the obtained parameters, the antenna is fabricated. The experiment results demonstrated that the proposed antenna satisfied the -10 dB impedance bandwidth requirement while covering the VHF bands. And measured characteristics of gain and radiation patterns are obtained for operating bands.

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참고문헌

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