Bloch Analysis of Glide-symmetric Structures Using a Multimode Transmission Matrix

摘要

Glide-symmetric structures have recently been used in the design of planar lenses for ultraband applications or in gap waveguide technology as electromagnetic bandgap structures. We use here a Bloch analysis to propose a method for obtaining the dispersive behavior of these structures. While previous works proposed a monomodal interaction among periodic scatterers, including higher-order modes is proved here to enhance the accuracy of the solution in dense glide-symmetric geometries.