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Type: 
Conference
Description: 
Resonant Bessel-beam launchers are azimuthally in-variant structures characterized by a circular grounded dielectric slab with an isotropic metasurface on top. Previous works ana-lyzed the launchers performance for some specific cases, assuming TE or TM polarizations, inductive or capacitive metasurfaces, cavities with sub-wavelength or half-wavelength height. We show here with both theoretical and full-wave results that the inductive or capacitive nature of the metasurface has a fundamental role in the radiating behavior of these devices. Results are reported for the relevant TM-polarized case, considering air-filled, half-wavelength thick cavities. The extension of this analysis to the TE-polarized and dielectric-filled case will be discussed at the conference.
Publisher: 
IEEE
Publication date: 
27 Mar 2022
Authors: 

Edoardo Negri, Walter Fuscaldo, Mauro Ettorre, Paolo Burghignoli, Alessandro Galli

Biblio References: 
Pages: 1-4
Origin: 
2022 16th European Conference on Antennas and Propagation (EuCAP)