Patent ID: 8089327
Filing Date: 2012-01-03
Classification: H01P

Abstract:
1. A waveguide to microstrip transition comprising: a waveguide having an opening at one end, a dielectric substrate having a first and a second side and a ground plane on said first side of said substrate, said ground plane having an opening, said dielectric substrate overlying said waveguide opening so that said ground plane faces said waveguide and said ground plane opening registers with said waveguide opening, a back short having a housing positioned on said second side of said dielectric substrate, said back short housing forming a cavity which registers with at least a portion of said ground plane opening, said back short having at least one opening to said cavity along said second side of said dielectric substrate, a pair of spaced apart microstrips on said second side of said dielectric substrate, each microstrip having a free end positioned in said cavity so that said free ends of said microstrips are spaced apart from each other, each microstrip extending through said at least one back short opening, wherein at least one portion of said back short housing is spaced inwardly from said waveguide opening.