The Journal of Korea Institute of Information, Electronics, and Communication Technology (한국정보전자통신기술학회논문지)

Korea Information Electronic Communication Technology (한국정보전자통신기술학회)
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Analysis on the Power Handling Capability of Ground Navigation Loran-C Transmitting Antenna

지상항법 로란-C 송신 안테나의 출력 처리 용량 분석

  • Jang-Han Kim (Department of Electrical Engineering and Computer Science, DGIST)
  • Received : 2024.09.30
  • Accepted : 2024.10.15
  • Published : 2024.10.29
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Abstract

The power handling capacity of the Loran-C transmitting antenna for terrestrial navigation was analyzed in this paper. The power handling capacity of a shortened umbrella-type monopole antenna for terrestrial navigation is determined by the insulation voltages of the base and guy insulators used in the antenna in addition to the effective height of the antenna. In this paper, the insulation voltage of the base insulator according to the transmitting antenna power was derived, and in order to obtain the insulation voltages of the points where the antenna and the guy lines are connected, the antenna voltages for the antenna height were derived. By comparing with the insulation voltages of the insulators used, the power handling capacity of the antenna can be analyzed. As a result of comparative analysis of the insulation characteristics of the insulators used for the transmitter antenna, the guy line insulation voltages were approximately 69[kV]~128[kV] depending on the antenna output of 50[kW]~100[kW], so the method of using two guy insulators in series was appropriate, and the insulation voltages at the base of the antenna were 64.8[kV]~91.7[kV], so it was possible to have a power handling capacity that could operate the antenna output power from 50[kW] to 100[kW].

본 논문에서는 지상항법용 로란-C 송신 안테나의 전력 처리 용량을 분석하였다. 지상항법용 단축형 우산형 모노폴 안테나의 전력 처리 용량은 안테나 실효고 이외에 안테나에 사용된 기부 및 지선 애자의 절연 전압에 의해 결정된다. 본 논문에서는 송신 안테나 전력에 따른 기부 애자의 절연 전압과 안테나와 지선이 연결되는 지점의 절연 전압을 구하기 위해 안테나 높이에 대한 안테나 전압을 도출하여 사용된 애자들의 절연 전압과 비교하여 안테나의 전력 처리 용량을 분석할 수 있도록 하였다. 송신국 안테나를 대상으로 사용된 애자의 절연 특성과 비교 분석한 결과, 50[kW]~100[kW] 안테나 출력에 따라 지선 연결점들의 절연 전압은 약 69[kV]~128[kV]로 2개의 지선 애자를 직렬로 사용하는 방법이 적합하며, 안테나 기저부의 절연 전압은 64.8[kV]~91.7[kV]로 안테나 출력을 50[kW]에서 100[kW]로 운용할 수 있는 전력 처리 용량을 가질 수 있었다.

Keywords

References

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