Open AccessSynthesis of multiple‐pattern planar arrays with A hybrid generalised iterative fast Fourier transform algorithm
Author(s) -
Li Wen Tao,
Hei Yong Qiang,
Yang Jing,
Shi Xiao Wei
Publication year - 2016
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2014.0595
Subject(s) - robustness (evolution) , planar , algorithm , fourier transform , amplitude , fast fourier transform , computer science , iterative method , planar array , sensitivity (control systems) , mathematics , electronic engineering , engineering , optics , physics , telecommunications , mathematical analysis , biochemistry , chemistry , computer graphics (images) , gene
This study investigates the synthesis of multiple‐pattern periodic phase‐only control planar arrays. A hybrid generalised iterative Fourier technique is proposed to iteratively derive the array element excitations efficiently from the prescribed array factor, in which the two‐dimensional Woodward–Lawson method is employed in order to generate good initial values. During the synthesis process, the phase‐only control reconfigurable array is obtained by changing the corresponding phase for different array patterns while keeping the excitation amplitude constant. The robustness of the proposed algorithm has been testified by investigating the sensitivity of the radiation pattern affected by the amplitude and phase errors. Furthermore, three totally different types of reconfigurable numerical examples are discussed to validate the proposed method. Simulation results reveal the superior performance, the efficiency and the robustness of the proposed algorithm in dealing with multiple‐pattern arrays.