A Bessel Beam Launcher based on glide-symmetric metamaterials

In this paper, a full-metallic Bessel beam launcher working at 16.5 GHz is proposed. The Bessel beams are produced by an impedance-matching metamaterial lens and the lens is realized by a parallel plate equipped with glide-symmetric configurations with internal metal pins. The application of the metallic glide-symmetric structures which have the advantages of ultra-low dispersion, high efficiency and wide band guarantees the good performance of the lens. The lens is fed by a waveguide horn and a protype of the launcher is simulated with CST.