A Study on Sample Frequency Channel Selection of Near-Field Receiving Measurement for the Active Phased Array Antenna for Mono-Pulse Accuracy

모노펄스 정확도를 위한 능동배열위상레이다의 근접전계 수신시험 표본 주파수 채널 선택에 대한 연구

  • Received : 2017.02.09
  • Accepted : 2017.04.03
  • Published : 2017.04.30


It is essential for the near-field receiving measurement to make beam pattern and check the performance of a active phased array antenna system. Also, we could obtain compensation value for mono-pulse function through the near-field receive test, however, if the radar has many frequency channel, the test would take long time and hard effort. So it is needed that frequency channels are selected for measurement and calculates the values for other frequency channels to improve efficiency in development and manufacture. In this case, the phase variations in sum and del channels would be checked. The phase measurement includes un-linear characteristic because of wrapping effect. Generally, radars have similar path length in sum and del channel, but if a radar has a electrical length gap between sum and del channel, errors could occur by phase's wrapping effect. In this paper, the interpolation method's error caused by electrical length gap is checked and the effective method for frequency channel selection to avoid wrapping effect is introduced.


  1. Merrill Skolnik, Raadar Hndbook, McGraw-Hill Publishing Co, N.Y, 1990.
  2. Stephen E. Lipsky, Microwave Passive Direction Finding, John Wiley and Sons, New York, 1987.
  3. E. Grorud, C. Mehl, C. Renard, E. Semmler, and K. Weidmann, "Design and measurement of an active array antenna for an airborne X-Band SAR/MTI radar", Proceedings of The European Conference on Antennas and Propagation(EuCAP 2006), Nice, France, Nov. 2006.
  4. W. Haselwander, M. Uhlmann, S. Wustefeld, and M. Bock, "Measurement on an active phased array antenna on a near-field range and an anechoic far-field chamber", 31st European Microwave Conference, London, Sep. 2001.
  5. J. J. H. Wang, "An examination of the theory and practices of planar near-field measurement", IEEE Trans. Antennas Propagat., vol. 36, pp. 746-753, Jun. 1988.
  6. 채희덕, 김한생, 이동국, 정명득, 박종국, "근접 전계시험 시설을 이용한 능동 위상 배열 안테나 송신 빔패턴 측정", 한국전자파학회논문지, 22(12), pp. 1155-1163, 2011년 12월.
  7. 유제우, 채희덕, 박종국, 임재환, 김덕환, 진형석, 김한생, "보정 경로를 활용한 디지털 레이더의 능동 위상 배열 근접전계 수신시험", 한국전자파학회논문지, 27 (6), pp. 504-511, 2016년 6월.
  8. 문영찬, 박찬구, 표철식, 전순익, "능동 위상배열 안테나 채널의 초기위상 천이 보정 방법", 전자공학회논문지-TC 37(7), pp. 18-23, 2000년 7월.
  9. 이종필, 이일근, 금현주, "3차원 펄스 레이더 시험용 타이밍 신호 발생기 구현", 한국전기전자학회논문지, 9 (2), pp. 136-142, 2005년 12월.
  10. 김은희, 김태형, 김선주, "광대역 레이더의 표적 반사신호 모의 방법에 관한 연구", 한국전자파학회논문지, 26(2), pp. 179-188, 2015년 2월.
  11. 노지은, 양진모, 유경주, 구영석, 이상화, 송성찬, 이희영, 최병관, 이민준, "다채널 직접 디지털 합성을 이용한 레이더 반사신호 모의장치", 한국전자파학회논문지, 22(10), pp. 966-980, 2011년 10월.