Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
권호 표지
DOI QR코드

DOI QR Code

Design of Optimized Two Baseline Waveguide Slot Array Antenna for Interferometric Radar Altimeter

기저선이 최적화된 간섭계 레이다 고도계용 도파관 슬롯 배열 안테나 설계

  • Yoon, Nanae (Department of Specific Radar, Hanwha Systems) ;
  • Kim, Jihyung (Department of Specific Radar, Hanwha Systems) ;
  • Kim, Jinsu (Department of Millimeter Microwave Device, Eltronix) ;
  • Jang, Jonghun (The 1st Research and Development Institute, Agency for Defense Development)
  • 윤나내 (한화시스템(주) 특수레이다팀) ;
  • 김지형 (한화시스템(주) 특수레이다팀) ;
  • 김진수 (엘트로닉스(주) 초고주파부품 연구소) ;
  • 장종훈 (국방과학연구소 미사일연구원)
  • Received : 2021.11.09
  • Accepted : 2022.03.21
  • Published : 2022.04.05
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, the compact waveguide slot array antenna for interferometric radar altimeter is proposed. The proposed antenna structure consist of corrugation structure which is applied between each channel to improve isolation, three-channel waveguide slot array antenna and feeder. In addition, to reduce the occurrence of phase ambiguity, the baseline spacing of the three-channel antenna is analyzed and the results are applied to the design. For compact design, reduced height and SMP connector structure are used and the dip brazing method which is the conjugation method after dipping to flux is used for the fabrication of the lightweight antenna. The measurement result of the proposed antenna shows less than 1.41 : 1 (VSWR) and 48.3 dBc (isolation). The antenna gain is higher than 20.2 dBi and the side lobe levels are lower than 18.8 dB (vertical plane) and 10.0 dB (horizontal plane).

Keywords

References

  1. H. Wi, et. al., "Development of Interferometric Radar Altimeter Transceiver Using De-Ramping," 2015 IEIE FALL CONFERENCE, pp. 283-284, Nov. 2015.
  2. J. H. Kang, et. al., "The Design of the Waveguide Array Antenna Used in Interferometric Radar Altimeter," 2015 KIMST FALL CONFERENCE, pp. 1159-1160, Nov. 2015.
  3. S. E. Lipsky, "Microwave Passive Direction Finding," SciTech, 2004.
  4. J. H. Lee and J. M. Woo, "The Direction Fining Ambiguity Analysis for 3 Element and 4 Element Phase Interferometer DF System," Journal of the KIMST, Vol. 17, No. 4, pp. 544-550, 2014.
  5. B. L. Cho, et. al., "Performance Comparison to Solve Angle Ambiguity Needed to Angle of Arrival Estimation in 2D Radar Interferometer," The Journal of Korean Institute of Electromagnetic And Science, Vol. 23, No. 3, pp. 410-413, Mar. 2012. https://doi.org/10.5515/KJKIEES.2012.23.3.410
  6. J. Park, et. al., "Improving Signal Processing of Interferometry Radar Altimeter with Captive Flight Tests," KIMST CONFERENCE, pp. 2425-426, Jun. 2019.
  7. R. S. Elliott and L. A. Kurtz, "The Design of Small Arrays," IEEE Trans. on AP, Vol. AP-26, pp. 214-219, Mar. 1978.
  8. R. S. Elliott, "An Improved Design Procedure for Small Arrays of Shunt Slots," IEEE Trans. on AP, Vol. AP-31, pp. 48-53, Jan. 1983. https://doi.org/10.1109/TAP.1983.1143002
  9. P. S. Shin, et. al., "Design of a Linear PolarizedSlotted Waveguide Antenna Using Longitudinal Slots on the Broad Wall of a Rectangular Waveguide," IEIE CONFERENCE, pp. 153-156, Jul. 1998.
  10. J. S. Ha, et. al., "Angle Ambiguity Analysis of Antenna Baseline for Interferometric Radar Altimeter," The Journal of Korean Institute of Electromagnetic Engineering and Science Vol. 32, No. 7 pp. 626-634, 2021. https://doi.org/10.5515/KJKIEES.2021.32.7.626
  11. T-V Son, S. C. Song, S. H. Seo and K. C. Hwang, "Waveguide Slot Array Antenna with a Hybrid-Phase Feed for Grating Lobe Reduction," International Journal of Antennas and Propagation, Vol. 2016, pp. 1-8, 2016.
  12. J. Yun, D. Park, D. Jang and K. C. Hwang, "Isolation Improvement in Vivaldi Antennas Using DSRR," The Journal of Korean Institute of Electromagnetic Engineering and Science, Vol. 29, No. 10, pp. 739-744, 2018. https://doi.org/10.5515/KJKIEES.2018.29.10.739
  13. F. N. Atkin, "Dip-Brazing Aluminum Alloys for Light-Weight, Compact Aerospace Electronics Equipment," IEEE Transactions on Product Engineering and Production, Vol. 9, No. 1, pp. 3-7, 1965. https://doi.org/10.1109/TPEP.1965.1136693