ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,512,596, issued on Dec. 30, was assigned to Lockheed Martin Corp. (Bethesda, Md.).
"Longitudinally ridged quad polarizer feed" was invented by Jason Stewart Wrigley (Littleton, Colo.) and Nathan Jastram (Highlands Ranch, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Longitudinally ridged quad polarizer feeds include a waveguide spanning a longitudinal axis between a feed port and an antenna port, with first ridge elements that span longitudinally from the feed port on first opposing walls of the waveguide and second ridge elements that span longitudinally from the feed port on second opposing walls of the waveguide. A polarization of a radio freq...