Two-Dimensional Glide-Symmetric Dielectric Structures for Planar Graded-Index Lens Antenna Articles uri icon

authors

  • POYANCO ACEVEDO, JOSE MANUEL
  • Zetterstrom, Oskar
  • Castillo Tapia, Pilar
  • G. FONSECA, NELSON JORGE
  • PIZARRO, FRANCISCO
  • Quevedo Teruel, Oscar

publication date

  • June 2021

start page

  • 2171

end page

  • 2175

issue

  • 11

volume

  • 20

International Standard Serial Number (ISSN)

  • 1536-1225

Electronic International Standard Serial Number (EISSN)

  • 1548-5757

abstract

  • In this letter, we propose and study a 2-D 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 a -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.

subjects

  • Telecommunications

keywords

  • lenses; dielectrics; antenna measurements; periodic structures; refractive index; dispersion; antennas