Planar Glide-Symmetric Dielectric Half-Luneburg Lens at K/Kα-Band

Oskar Zetterstrom, Pilar Castillo-Tapia, Jose Manuel Poyanco, Nelson J.G. Fonseca, Francisco Pizarro, Oscar Quevedo-Teruel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this work, we design a planar half-Luneburg lens antenna. The gradient of refractive index is realized using a dielectric slab periodically loaded with air-cavities of varying size. The cavities are glide-symmetrically arranged. It is demonstrated that by introducing glide symmetry, the bandwidth and range of realizable refractive indices are increased compared to a non-glide-symmetric structure. The lens antenna operates from 22 to 32 GHz and can scan its directive beam over a 50 degree range in the H-plane. The side lobe level in this scan range is lower than-10dB throughout the band.

Original languageEnglish
Title of host publication2022 16th European Conference on Antennas and Propagation, EuCAP 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9788831299046
StatePublished - 2022
Externally publishedYes
Event16th European Conference on Antennas and Propagation, EuCAP 2022 - Madrid, Spain
Duration: 27 Mar 20221 Apr 2022

Publication series

Name2022 16th European Conference on Antennas and Propagation, EuCAP 2022

Conference

Conference16th European Conference on Antennas and Propagation, EuCAP 2022
Country/TerritorySpain
CityMadrid
Period27/03/221/04/22

Keywords

  • Dielectric lens
  • glide symmetry
  • planar Luneburg lens

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