ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,513, issued on Jan. 27, was assigned to Korea Institute of Fusion Energy (Daejeon, South Korea).

"Standard rectangular waveguide with RF port input transition" was invented by Hyun Ho Wi (Daejeon, South Korea) and Son Jong Wang (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a waveguide with an RF port input transition. The waveguide includes: a tubular rectangular body having openings formed at opposite sides thereof, each of the openings having a flange therearound; multiple isolator ports formed at predetermined intervals in one wall of the rectangular body, the isolator ports each being switchable between...