[EN] This letter presents a microwave planar lens illuminated by a radially corrugated horn antenna. The lens is formed by a set of 5x5 multilevel unit cells working as a frequency selective surface. Each layer of the unit ...
Sánchez-Escuderos, Daniel; Moy-Li, Hon Ching; Antonino Daviu, Eva; Cabedo Fabrés, Marta; Ferrando Bataller, Miguel(Institute of Electrical and Electronics Engineers, 2017)
[EN] A multilevel Frequency Selective Surface (FSS) formed by a non-uniform distribution of circular holes on a metallic sheet is presented. The FSS is aimed at working as a planar lens to increase the gain of the feeding ...