Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Design of Ka-band Planar Active Phased Array Antenna

Ka밴드 평면형 능동위상배열 안테나장치 설계

  • Received : 2018.08.14
  • Accepted : 2019.01.19
  • Published : 2019.02.01
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Abstract

In this paper, we described the design of Ka-band planar active phased array antenna which is applicable for small RADAR for airborne and seeker of guided missile. The antenna consists of about 1000 array radiating elements and is designed to be within 200mm diameter. We optimized the spacing of radiating elements to allow beem steering above ${\pm}55$ degrees of Field of view, and analyzed the performance of antenna. We confirmed that the Effective Isotropic Radiated Power (EIRP) of the antenna can be 94.22 dBm and receive G/T can be 1.68 dB/k through the designs of RF components and the verification of RF budget. The TX output of TR Module is designed to be over 1.3W for EIRP, and Receive noise figure of TR Module is designed to be less than 5dB for G/T.

본 논문에서는 항공용 소형 레이다나 유도 무기 탐색기 등에 적용이 가능한 Ka대역 평면형 능동위상배열 안테나장치를 설계한 내용을 설명하였다. 본 안테나장치는 1000개 급의 복사소자 면배열로 구성하고, 직경 200mm 이내의 크기로 설계하였다. 빔 조향 범위는 ${\pm}55^{\circ}$ 이상 가능하도록 빔 패턴 분석을 통하여 복사 소자 간격을 정의하고 안테나 성능 분석을 수행하였다. RF 구성품 설계와 버짓 검증을 통해 안테나장치의 송신 EIRP는 94.22 dBm, 수신 G/T는 1.68 dB/k 성능으로 요구 규격을 만족할 수 있음을 확인하였다. 송신 EIRP 규격을 만족하기 위해 TRM의 송신 출력은 1.3W 급으로 설계하였고, 수신 G/T 규격을 만족하기 위해 TRM의 수신 잡음 지수를 5dB 이하가 되도록 설계하였다.

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References

  1. Merrill, I. S., Introduction to Radar System, McGraw-Hill., NY, USA, 2001, pp. 594-615.
  2. William, L. M., and Scheer, J. A., Principle of Modern Radar Advanced Techniques, SCITECH PUBLISHING., NJ, USA, 2013, pp. 404-418.
  3. Steve, C. C., Advanced Techniques in RF Power Amplifier Design, Artech House microwave library, 2002, pp. 294-315.
  4. Lee, J. H., Lee, S. P., and Oh, S. H., "Design of Ka-band Satellite Ground Station Antenna/RF System," International Journal of Aeronautical and Space Sciences, Vol. 4, No. 2, 2003, pp. 88-94. https://doi.org/10.5139/IJASS.2003.4.2.088
  5. Chae, H. D., Joo, J. M., Yu, J. W., and Park, J. K., "Subarray Structure Optimization Algorithm for Active Phased Array Antenna Using Recursive Element Exchanging Method," The Journal of Korean Institute of Electromagnetic Engineering and Science, Vol. 27, No. 8, 2016, pp. 665-675. https://doi.org/10.5515/KJKIEES.2016.27.8.665
  6. Oh, H. S., "A Design and Fabrication of a Compact Ka Band Transmit/Receive Module Using a Quad-Pack," The Journal of Korean Institute of Electromagnetic Engineering and Science, Vol. 22, No. 3, 2011, pp. 389-398. https://doi.org/10.5515/KJKIEES.2011.22.3.389
  7. Bo, Z., "Broadband and Compact LTCC Power Divider," Electronics Letters, 2015.
  8. CST Studio Suite, "CST Microwave Studio," 2017, http://www.cst.com
  9. Piernas, B., "Improvement of the Design of $180^{\circ}$ Rat-race Hybrid," Electronics Letter, 2000.
  10. Triquint Semiconductor, ka band 2 W Power Amplifier, TGA4516, May 2009.
  11. Constantine A. B., Antenna Theory :Analysis and Design, 3rd Edition, Wiley, 2005, pp. 349-356.