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Vortex Beam Generation in Microwave Band

By Ahmad Alamayreh and Nidal Qasem
Progress In Electromagnetics Research C, Vol. 107, 49-63, 2021


This paper describes a theoretical characterization of a Transverse Electric (TE)-polarized vortex beam antenna in the microwave range. The main body of the antenna consists of a cylindrical waveguide that is excited by a traveling-wave current ring feeder. A new design of the feeder is proposed. Closed-form formulas are obtained for the fields and the antenna input impedance following a conventional derivation based on the electric vector potential. A detailed dispersion analysis is used for accurate evaluation of the relevant spectrum and propagation properties. The effectiveness of the theoretical derivations is validated via full-wave numerical simulations.


Ahmad Alamayreh and Nidal Qasem, "Vortex Beam Generation in Microwave Band," Progress In Electromagnetics Research C, Vol. 107, 49-63, 2021.


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