Glide-symmetric periodic structures have attracted increasing interest in the last decade thanks to their unconventional dispersion features. They have been proposed to design electromagnetic bandgap materials, planar lenses, and, more generally, microwave and millimeter waves devices. A glidesymmetric load within a metallic waveguide produces linear dispersion within the first pass band, then an open stop-band with maximized spectral width. The modes propagating within the structures become a slow wave and, therefore, an all-metal glidesymmetric load defines an artificial dielectric. This contribution proposes, for the first time, a preliminary dispersive analysis of the complex mode supported by an open glide-symmetric allmetal waveguide loaded with glide-symmetric corrugations. To this aim, an ad-hoc method-of-moments approach is introduced, whose results are compared with full-wave simulations achieved by implementing a Bloch analysis.
All-metal glide-symmetric slotted planar antennas: modal analysis / Tong, Yuhuan; Valerio, Guido; Ambrogi, Beatrice; Comite, Davide. - (2024). (Intervento presentato al convegno 18th European Conference on Antennas and Propagation, EuCAP 2024 tenutosi a Glasgow).
All-metal glide-symmetric slotted planar antennas: modal analysis
Beatrice Ambrogi;Davide Comite
2024
Abstract
Glide-symmetric periodic structures have attracted increasing interest in the last decade thanks to their unconventional dispersion features. They have been proposed to design electromagnetic bandgap materials, planar lenses, and, more generally, microwave and millimeter waves devices. A glidesymmetric load within a metallic waveguide produces linear dispersion within the first pass band, then an open stop-band with maximized spectral width. The modes propagating within the structures become a slow wave and, therefore, an all-metal glidesymmetric load defines an artificial dielectric. This contribution proposes, for the first time, a preliminary dispersive analysis of the complex mode supported by an open glide-symmetric allmetal waveguide loaded with glide-symmetric corrugations. To this aim, an ad-hoc method-of-moments approach is introduced, whose results are compared with full-wave simulations achieved by implementing a Bloch analysis.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.