GA-Enhanced Thin Square Array with Cyclic Difference Sets

Gina KWON  Keum-Cheol HWANG  Joon-Young PARK  Seon-Joo KIM  Dong-Hwan KIM  

IEICE TRANSACTIONS on Electronics   Vol.E96-C   No.4   pp.612-614
Publication Date: 2013/04/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E96.C.612
Print ISSN: 0916-8516
Type of Manuscript: BRIEF PAPER
Category: Electromagnetic Theory
thinned array,  cyclic difference sets,  genetic algorithm,  optimization,  

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A hybrid approach for the synthesis of square thinned arrays with low sidelobes is presented. The proposed method combines the advantages of a genetic algorithm and combinatorial technique-cyclic difference sets (CDSs). The peak sidelobe level (PSL) and the thinning factor are numerically evaluated to show the effectiveness and reliability of the proposed hybrid method. In the proposed GA-enhanced square arrays with the DS and the best CDS, reductions of the PSL, of 4.16 dB and 2.45 dB, respectively, were achieved as compared to the results of conventional rectangular DS and CDS arrays.