Exciting Vorticity Through Higher Order Bessel Beams With a Radial-Line Slot-Array Antenna - Laboratoire d'Electronique et Electromagnétisme Access content directly
Journal Articles IEEE Transactions on Antennas and Propagation Year : 2017

Exciting Vorticity Through Higher Order Bessel Beams With a Radial-Line Slot-Array Antenna

Abstract

In this communication, it is shown that a nondiffracting vortex beam (i.e., a higher order Bessel beam with azimuthal phase variation) can be generated in the near field by synthesizing an inward cylindrical traveling-wave distribution over a finite aperture antenna. A radial line slot array (RLSA) is then designed to prove the concept. The collimated vortex beam is excited in the proximity of the RLSA, within a region properly defined by the nondiffracting range of the generated beam. The radial dependence of the longitudinal electric field of the vortex-beam magnitude follows a first-order Bessel function, and its phase presents a linear azimuthal variation. Full-wave results validate the generation of the nondiffractive higher order Bessel beam within the radiative near field of the launcher.
Fichier principal
Vignette du fichier
01551691.pdf (10.3 Mo) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-01551691 , version 1 (12-03-2020)

Identifiers

Cite

Davide Comite, Guido Valerio, Matteo Albani, Allessandro Galli, Massimiliano Casaletti, et al.. Exciting Vorticity Through Higher Order Bessel Beams With a Radial-Line Slot-Array Antenna. IEEE Transactions on Antennas and Propagation, 2017, 65 (4), pp.2123 - 2128. ⟨10.1109/TAP.2017.2670503⟩. ⟨hal-01551691⟩
128 View
157 Download

Altmetric

Share

Gmail Facebook X LinkedIn More