Hybrid alternate projection algorithm and its application for practical conformal array pattern synthesis

Based on the fabricated 12-element cavity-backed microstrip sector cylinder array,a novel hybrid alternate projection algorithm（HAPA）,which combines analytical method with numerical techniques effectively,is proposed for synthesizing the pattern of practical conformal array.The algorithm applies the...

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Bibliographic Details
Published in:Journal of systems engineering and electronics 2012-10, Vol.23 (5), p.625-632
Main Authors: Zhao, Fei, Chai, Shunlian, Qi, Huiying, Xiao, Ke, Mao, Junjie
Format: Article
Language:English
Subjects:
Algorithms
Arrays
Beams (radiation)
Cylinders
Mutual coupling
Projection
Sidelobes
Synthesis
交替投影算法
共形阵列
应用
收敛速度
数字技术
方向图综合
校正技术
混合
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Summary:Based on the fabricated 12-element cavity-backed microstrip sector cylinder array,a novel hybrid alternate projection algorithm（HAPA）,which combines analytical method with numerical techniques effectively,is proposed for synthesizing the pattern of practical conformal array.The algorithm applies the variable direction aperture projection method with mutual coupling correction techniques to provide the good initial excitations of elements to the enhanced alternate projection algorithm（EAPA）.In order to do further optimization,which improves the convergent speed of the algorithm significantly.Finally,the HAPA has been applied to the fabricated sector cylinder array with mutual coupling considered.The results of synthesized patterns,such as low sidelobe with null points formed pattern,beam scanning with low sidelobe pattern and the shaped beam pattern are presented.It demonstrates the validity of HAPA in practical conformal array synthesis.
ISSN:1004-4132
1004-4132
DOI:10.1109/JSEE.2012.00078