Arbitrarily-Shaped Reflectarray Resonant Elements for Dual-Polarization Use and Polarization Conversion

Hiroyuki DEGUCHI  Daichi HIGASHI  Hiroki YAMADA  Shogo MATSUMOTO  Mikio TSUJI  

IEICE TRANSACTIONS on Communications   Vol.E101-B    No.2    pp.277-284
Publication Date: 2018/02/01
Publicized: 2017/08/22
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2017ISI0001
Type of Manuscript: Special Section INVITED PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2016)
reflectarray,  infinite periodic array,  dual-polarization,  polarization conversion,  

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This paper proposes a genetic algorithm (GA) based design method for arbitrarily-shaped resonant elements that offer enhanced reflectarray antenna performance. All elements have the specified phase property over the range of 360°, and also have dual-polarization and low cross-polarization properties for better reflectarray performance. In addition, the proposal is suitable for linear-to-circular polarization conversion elements. Thus, polarizer reflectarray elements are also presented in this paper. The proposed elements are validated using both numerical simulations and experiments.