Discrete dielectric reflectarray for generating mixed-mode OAM radio beams

A discrete dielectric reflectarray for generating mixed-mode OAM radio waves is presented. The reflectarray is introduced to transform the spherical wave emanating from the feed into a vortex beam after reflection. Through perforating the flat substrate with holes of various diameters, an azimuthal...

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Published in2016 IEEE International Symposium on Antennas and Propagation (APSURSI) pp. 1215 - 1216
Main Authors Bai, Xudong, Liang, Xianling, Yao, Yu, Li, Jianping, Geng, Junping, Jin, Ronghong
Format Conference Proceeding Journal Article
LanguageEnglish
Published IEEE 01.06.2016
Subjects
Antennas
Beams (radiation)
Dielectric constant
Dielectrics
Feeds
Laser beams
Microwave antennas
Perforating
Permittivity
Radio
Reflection
Reflector antennas
Substrates
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Summary:A discrete dielectric reflectarray for generating mixed-mode OAM radio waves is presented. The reflectarray is introduced to transform the spherical wave emanating from the feed into a vortex beam after reflection. Through perforating the flat substrate with holes of various diameters, an azimuthal variation of effective permittivity is obtained and the corresponding azimuthal phase-compensation can create multi-mode OAM waves. The designed reflectarray works in the millimeter frequency band, and can be used to generate the mixed-mode OAM states of ℓ =+1 and +2.
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SourceType-Conference Papers & Proceedings-2
ISSN:1947-1491
DOI:10.1109/APS.2016.7696315