Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Design and Performance Verification of Active Phased Array Antenna Near-Field Scanner with Mobility

이동성을 구비한 능동위상배열안테나 근접전계 스캐너 설계 및 성능 검증

  • Received : 2017.03.15
  • Accepted : 2017.03.29
  • Published : 2017.03.31
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Abstract

It is necessary to check the fault of phased array antenna, when the active phased array radar installed in the site is suspected performance degradation due to external impact or long-term operation. However, the near-field test should be performed in anechoic chamber in order to measure the phased array antenna, so that much time and cost must be applied for radar disassembly and transportation, and the operational availability of the radar system is deteriorates. Therefore, we propose a near-field scanner with mobility to check the fault of the phased array antenna at the site, and the effectiveness of the proposed scanner was verified with ${\pm}0.5dB$ magnitude and ${\pm}1.5^{\circ}$ phase in comparison with measured data in anechoic chamber.

사이트에 설치되어 운용 중인 능동위상배열레이다가 외부의 충격 또는 장기간 운용에 따른 성능열화가 의심될 경우, 위상배열안테나의 이상여부를 확인해야 한다. 하지만, 위상배열안테나를 측정하기 위해서는 무반향성 챔버에서 근접전계 시험이 수행되어야 하므로, 레이다 장치의 분해 및 운송을 위해 많은 시간과 비용이 투입되어야 하고 레이다 시스템의 운용 가용도가 나빠지게 된다. 따라서, 본 논문에서는 사이트에서 위상배열안테나의 이상여부를 확인할 수 있도록 이동성을 구비한 능동위상배열안테나 근접전계 스캐너를 제안하고, 무반향성 챔버에서 측정한 데이터와 비교하여 크기 ${\pm}0.5dB$와 위상 ${\pm}1.5^{\circ}$ 오차수준으로 측정유효성을 검증하였다.

Keywords

References

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