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

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 achieves lower effective refractive indices when compared to non-glide configurations. These two properties are beneficial for producing graded-index lens antennas. To potential proposed unit cell, designed Luneburg operating in K- K $_\text {a}\!$ -bands. The was manufactured with conventional additive manufacturing it has use future wireless communications given its low-cost low-profile.