The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
권호 표지
DOI QR코드

DOI QR Code

Synthesis of Linear Antenna Array Patterns with Multiple Broad Nulls Using Schelkunoff Polynomial

Schelkunoff 다항식을 사용한 다중의 넓은 Null들을 가지는 선형 배열 안테나 패턴 합성

  • Park, Eui-Joon (School of Electronic Engineering, Kumoh National Institute of Technology)
  • 박의준 (금오공과대학교 전자공학부)
  • Published : 2011.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a method for synthesizing the linear antenna array patterns with broad nulls(BN) at the interference directions is newly presented. Opposit to the conventional methods in which the weights of array elements are optimized for BN control, this method simplifies the control process for multiple BN directions and widths by optimally perturbing the zero positions inherent to Schelkunoff polynomial transformed from the array factor. It is also shown that this method can be easily applicable to the phased array antennas. The proposed scheme is numerically verified by substituting the extracted complex weights into the array factor.

본 논문에서는 간섭 신호 방향으로 넓은 폭의 null(BN)들을 가지도록 하는 선형 배열 안테나 패턴 합성 방법을 새로이 제안한다. 배열 소자들의 가중치들을 최적화시켜 BN을 제어하는 기존의 방법과는 달리, 본 방법에서는 배열계수를 Schelkunoff 다항식으로 변환하고, 이 다항식에 내재된 영점들을 최적 섭동시킴으로써 다중의 BN 방향 및 폭의 제어를 간단히 하였다. 또한, 이 방법은 위상 배열 안테나에도 쉽게 적용됨을 보였다. 도출된 복소 가중치들을 배열계수에 대입함으로써 제안한 방법의 타당성을 수치적으로 검증하였다.

Keywords

References

  1. R. L. Haupt, "Null synthesis with phase and amplitude controls at the subarray outputs", IEEE Trans. Antennas Propagat., vol. 33, no. 5, pp. 505-509, May 1985. https://doi.org/10.1109/TAP.1985.1143619
  2. H. L. Van Trees, Optimum Array Processing, John Wiley & Sons, 2002.
  3. A. Georgiadis, A. Collado, and A. Suarez, "Pattern nulling in coupled ocillator antenna arrays", IEEE Trans. Antennas Propagat., vol. 55, no. 5, pp. 1267-1274, May 2007. https://doi.org/10.1109/TAP.2007.895631
  4. H. Steyskal, "Methods for null control and their effects on the radiation pattern", IEEE Trans. Antennas Propagat., vol. 34, pp. 404-409, Mar. 1986. https://doi.org/10.1109/TAP.1986.1143816
  5. M. H. Er, "Linear antenna array pattern synthesis with prescribed broad nulls", IEEE Trans. Antennas Propagat., vol. 38, pp. 1496-1498, Sep. 1990. https://doi.org/10.1109/8.57004
  6. W. C. Wang, F. Yung, and A. Z. Elsherbeni, "Linear antenna array synthesis using Taguchi's method: A novel optimization technique in electromagnetics", IEEE Trans. Antennas Propagat., vol. 55, no. 3, pp. 723-730, Mar. 2007. https://doi.org/10.1109/TAP.2007.891548
  7. J. Ye, Y. Wang, "Synthesis of linear array with broad nulls using immune algolithm", 9'th International Symposium on Antennas Propagation and EM theory, pp. 1238-1241, Nov. 2010.
  8. T. Heath, "Simultaneous beam steering and null formation with coupled, nonlinear oscillator arrays", IEEE Trans. Antennas and Propagat., vol. 53, no. 6, pp. 2031-2035, Jun. 2005. https://doi.org/10.1109/TAP.2005.848467
  9. R. S. Elliott, Antenna Theory and Design. Prentice Hall, 1981.
  10. K. C. Gupta, R. Garg, and R. Chadha, Computer Aided-Design of Microwave Circuits, Artech House, 1981.
  11. H. Jixian, Z. Shuqing, "Linear array pattern synthesis with multiple broad nulls", International Conference on Computational Electromagnetics and Its Applications, pp. 160-163, Nov. 1999.