two walls slot

This paper describes the design of a W-band dual polarized slotted waveguide (WG) array antenna. The slotted WG array is arranged on an annular disk, and so the feeding technique for this annular slotted WG array is more complicated than a regular array such as rectangular array. Broad wall longitudinal offset slot WG and edge wall inclined slot WG are staggered in turn to form the dual ... star slot 77