The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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A Study on Excitation Error Estimation for Active Phased Array Antenna

능동위상배열안테나의 급전신호 오차 추정에 관한 연구

  • Received : 2021.11.15
  • Accepted : 2022.02.17
  • Published : 2022.02.28
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Abstract

The active phased array antenna system performs beam steering, multi-beam formation and adaptive beam forming by controlling the amplitude and phase of signals fed to each radiating element. In order to obtain the desired radiation characteristics using an active phased array antenna system, the accurate amplitude and phase of the signal must be fed to each radiating element; however, due to various causes, the signal errors occurs in each radiating element. In this paper, a signal error estimation method of each radiating element is proposed. The proposed method simplifies the process of signal error estimation, and can quickly and accurately calculate the signal error.

능동위상배열안테나 시스템은 각 방사 소자에 급전되는 신호의 크기 및 위상을 조절하여 빔 조향, 다중 빔 형성, 적응형 빔 형성 등을 할 수 있다. 능동위상배열안테나 시스템을 이용하여 원하는 방사특성을 얻기 위해서는 각 방사 소자에 정확한 신호의 크기 및 위상값이 급전되어야 한다. 그러나 다양한 원인에 의해 급전 신호 오차가 발생하며, 본 논문에서는 이와 같은 급전 신호의 오차 값을 산출하는 방법을 제안하였다. 제안된 방법은 급전 신호의 오차 추정 절차가 간단하며, 급전 신호 크기 및 위상 오차를 빠르고 정확하게 탐색할 수 있다.

Keywords

References

  1. T. Joo, Y. Kim, C. Hwang, K. Kim, and J. Jeong, "Design of Tx multi-beam active phased array atenna system for aerial communications," The J. of Korean Institute of Electromagnetic Engineering and Science, vol. 32, no. 4, 2021, pp. 334-343. https://doi.org/10.5515/KJKIEES.2021.32.4.334
  2. S. Park and J. Jung, "A study on adaptive pattern null synthesis for active phased array antenna," J. of the Korea Institute of Electronic Communication Sciences, vol. 16, no. 3, 2021, pp. 407-416. https://doi.org/10.13067/JKIECS.2021.16.3.407
  3. I. Hwang, Y. Lee, J. Kim, S. Jang, and S. Kim, "Design and implementation of an X-band low-profile active electronically scanned array for airborne radar," The J. of Korean Institute of Electromagnetic Engineering and Science, vol. 32, no. 2, 2013, pp. 127-143.
  4. J. Jeong, J. Lim, and D. Jang "4-channel GaAs MMIC multi-function chips for an active phased array antenna for Ku-band mobile SARCOM," The J. of Korean Institute of Electromagnetic Engineering and Science, vol. 31, no. 11, 2020, pp. 913-924. https://doi.org/10.5515/kjkiees.2020.31.11.913
  5. T. Kim and S. Hwang, "Adaptive beamforming system based on combined array antenna," J. of the Korea Institute of Electronic Communication Sciences, vol. 16, no. 1, 2021, pp. 9-18. https://doi.org/10.13067/JKIECS.2021.16.1.9
  6. G. L. He, X. Gao, and R. T. Zhang, "Impact analysis and calibration methods of excitation errors for phased array atennas," IEEE Access, vol. 9, 2021, pp. 59010-59022. https://doi.org/10.1109/ACCESS.2021.3073222
  7. J. W. Yu, "MIMO/3-D beamforming antenna," The proceedings of The Korean Institute of Electromagnetic Enginerring and Science, vol. 25, no. 6, 2016, pp. 3-11.
  8. S. Son, W. Hwang, and S. Jeon, "Gain enhancement of large phased array antennas by phase error correction," In 2007 IEEE Antennas Propagation Society International Symp., Honolulu, USA, June 2007.
  9. B. Cho, J. Lee, S. Sun, J. Lee, E. Lee, and S. Lee, "A study on calibration of transmitter and receiver channels using coupling lines in an active phased array radar systems," J. of Korean Institute of Information Technology, vol. 14, no. 10, 2016, pp. 43-49.
  10. J. Joo, H. Chae, J. Park, H. Jin, Y. Kang, I. Han, D. Kim, and D. -Lee, "Study on the beam pattern correction in transmitting Near-Field measurements of a digital Multi-Function radar," The J. of Korean Institute of Electromagnetic Engineering and Science, vol. 31, no. 2, 2020, pp. 173-187. https://doi.org/10.5515/kjkiees.2020.31.2.173