Circular Polarization Conversion Reflectarray Suppressing Beam Shift

This paper proposes arbitrary shaped elements for a linear-to-circular polarization reflectarray suppressing beam shift depending on frequencies. To make aperture phase distribution uniform even at different frequencies, each element achieves specified different frequency properties. So we optimize...

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Bibliographic Details
Published in2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting pp. 299 - 300
Main Authors Yamada, Hiroki, Sakagawa, Kotaro, Deguchi, Hiroyuki, Tsuji, Mikio
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2019
Subjects
Antenna radiation patterns
Apertures
beam shift
circular polarization
genetic algorithm
Genetic algorithms
Polarization
reflectarray
Reflection
Resonant frequency
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Summary:This paper proposes arbitrary shaped elements for a linear-to-circular polarization reflectarray suppressing beam shift depending on frequencies. To make aperture phase distribution uniform even at different frequencies, each element achieves specified different frequency properties. So we optimize the elements with orthogonal two axial symmetries by the genetic algorithm (GA). Furthermore, linearly polarized orthogonal waves will be transformed into a circularly polarized one by making reflection-phase difference between TE/TM incidences 90 degrees.
ISSN:1947-1491
DOI:10.1109/APUSNCURSINRSM.2019.8888475