Patent ID: 8665165
Filing Date: 2014-03-04
Classification: H01Q

Abstract:
1. A waveguide feed, comprising: a ridged waveguide section comprising a wall structure and spaced-apart opposing ridges disposed on an internal surface of the wall structure, the spaced-apart opposing ridges extending along a major axis of the wall structure; and a feed section coupled to the ridged waveguide section, the feed section comprising (a) an extension of a portion of the wall structure of the ridged waveguide section, and (b) an extension of the spaced-apart opposing ridges disposed on an internal surface of the extended wall structure, wherein the extended portion of the wall structure of the ridged waveguide section is disposed over the extended portion of the spaced-apart opposing ridges, wherein the ridged waveguide section comprises a rectangular waveguide section, and wherein the wall structure comprises four walls, wherein the feed section comprises two walls which extend from a corresponding two walls of the four walls of the wall structure of the ridged waveguide section, wherein the two extended walls of the feed section are tapered, and wherein (i) the wall thickness of each of the two extended walls is tapered from a larger thickness proximate to the ridged waveguide section to a smaller thickness distal from the ridged waveguide section, or (ii) the wall width of each of the two extended walls is tapered from a broader width proximate to the ridged waveguide section to a narrower width distal from the ridged waveguide section.