Journal of the Korea Knowledge Information Technology Society (한국지식정보기술학회논문지)
- Volume 12 Issue 4
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- Pages.539-550
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- 2017
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- 1975-7700(pISSN)
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- 2734-0570(eISSN)
An Omnidirectional High Gain Antenna for UHF Band Ground Station
UHF대역 지상국용 무지향 고이득 안테나
- Bae, Ki-Hyoung (Satellite-Datalink Team, Hanwha Systems) ;
- Chang, Min-Soo (Satellite-Datalink Team, Hanwha Systems) ;
- Joo, Jae-Woo (Agency for Defence Development) ;
- Hwang, Chan-Ho (Agency for Defence Development) ;
- Hong, Ki-Pyo (Antenna Team, Mutronics, Inc.)
- Received : 2017.07.19
- Accepted : 2017.08.11
- Published : 2017.08.30
Abstract
In this paper, we designed, fabricated and tested an UHF band cylindrical dipole array antenna. In the proposed antenna, cylindrical dipoles were vertically arranged in four stages. A parallel structure feeding circuit was installed inside the cylindrical dipole and mounted so as to be broadband matching. The feeding circuit was installed at the center of the cylindrical dipole to optimize the gain flatness characteristic of the azimuth direction omnidirectional radiation pattern. Minimizing the difference between the signals branched from the feeding circuit and realizing the symmetry of the radiation pattern. The required specifications are more than 11.2% bandwidth in UHF band, above 6dBi antenna gain, standing wave ratio of 2:1 or less, less than
본 논문에서는 UHF대역 원통형 다이폴 배열 안테나에 대해서 설계, 제작 및 시험을 하였다. 제안하는 안테나는 원통형 다이폴을 수직으로 4단 배열하였다. 원통형 다이폴 내부에는 병렬구조 급전회로를 설치하여 광대역 매칭이 되도록 구현하였다. 급전회로를 원통형 다이폴 중심에 설치하여 방위각 방향 무지향 방사패턴의 이득평탄도 특성을 최적화하였다. 급전회로에서 분기되는 신호의 차이를 최소화하여 대칭적인 방사패턴을 구현하였다. 요구 규격은 UHF대역에서 대역폭 11.2% 이상, 이득 6dBi 이상, 2:1 이하의 정재파비, 수평방향 방사패턴 이득평탄도
Keywords
- Datalink;
- Ground station antenna;
- Dipole array;
- Broad band;
- High gain;
- Omni-directional;
- Parallel structure feeding circuit