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International Journal of Antennas and Propagation
Volume 2015 (2015), Article ID 316962, 9 pages
Research Article

An Improved Antenna Array Pattern Synthesis Method Using Fast Fourier Transforms

1Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China
2University of Chinese Academy of Sciences, Beijing 100190, China

Received 21 April 2014; Revised 18 August 2014; Accepted 22 August 2014

Academic Editor: Michelangelo Villano

Copyright © 2015 Xucun Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An improved antenna array pattern synthesis method using fast Fourier transform is proposed, which can be effectively applied to the synthesis of large planar arrays with periodic structure. Theoretical and simulative analyses show that the original FFT method has a low convergence rate and the converged solution can hardly fully meet the requirements of the desired pattern. A scaling factor is introduced to the original method. By choosing a proper value for the scaling factor, the convergence rate can be greatly improved and the final solution is able to fully meet the expectations. Simulation results are given to demonstrate the effectiveness of the proposed algorithm.