ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,230,852, issued on Feb. 18, was assigned to KMW Inc. (Hwaseong-si, South Korea).
"Waveguide filter" was invented by Yeon Ho Shin (Yongin-si, South Korea) and Kwon Won Lee (Hwaseong-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a waveguide filter particularly including a filter housing having a plurality of resonance blocks, a plurality of resonators configured by resonator posts respectively formed on the resonance blocks provided on the filter housing, and a resonator tunnel provided in the filter housing and configured to apply cross-coupling at least two resonance blocks among the plurality of resonan...