Generation of microwave orbital angular momentum states using hemispherical dielectric resonator antenna

Jian Ren; Kwok Wa Leung

doi:10.1063/1.5021951

Generation of microwave orbital angular momentum states using hemispherical dielectric resonator antenna

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

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Detail(s)

Original language	English
Article number	131103
Journal / Publication	Applied Physics Letters
Volume	112
Issue number	13
Publication status	Published - 26 Mar 2018

Link(s)

DOI	DOI https://doi.org/10.1063/1.5021951 Final Published version
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Attachment(s)	Documents 21929256.pdf Final Published version, 2.28 MB, PDF Publisher's Copyright Statement This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Jian Ren and Kwok Wa Leung , "Generation of microwave orbital angular momentum states using hemispherical dielectric resonator antenna", Appl. Phys. Lett. 112, 131103 (2018) and may be found at https://doi.org/10.1063/1.5021951.
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85044784879&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(b4e70e93-b14e-4954-8e25-22d09d8b8868).html

Abstract

A hemispherical dielectric resonator antenna (DRA) generating two orbital angular momentum (OAM) states of l = +1 and -1 is studied theoretically and experimentally. The DRA is fed with two orthogonal signals, exciting two degenerate higher-order TE₂₂₁ modes that generate the two OAM states. It was simulated with full-wave simulation software to verify the design method. A prototype operating in the microwave band (5.8 GHz) was fabricated and measured. Its S-parameters, intensity profile, and phase pattern are simulated, and the results are compared with measurements. Also, its far-field radiation pattern, realized antenna gain, and total antenna efficiency are shown for a complete study of the antenna.