Two-Dimensional Glide-Symmetric Dielectric Structures for Planar Graded-Index Lens Antennas

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

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

In this letter, we propose and study a two-dimensional glide-symmetric dielectric periodic structure. We demonstrate that glide symmetry broadens the bandwidth of operation and achieves lower effective refractive indices when compared to non-glide configurations. These two properties are beneficial for producing graded-index lens antennas. To demonstrate the potential of the proposed unit cell, we designed a Luneburg lens operating in the K- and K<sub>a</sub>-bands. The lens was manufactured with conventional additive manufacturing and it has a potential use for future wireless communications given its low-cost and low-profile.

Original languageEnglish
JournalIEEE Antennas and Wireless Propagation Letters
DOIs
StateAccepted/In press - 2021
Externally publishedYes

Keywords

  • additive manufacturing
  • Antenna measurements
  • Antennas
  • dielectric lens antennas
  • Dielectrics
  • Dispersion
  • Glide symmetry
  • Lenses
  • Luneburg lens
  • Periodic structures
  • Refractive index

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