ALEXANDRIA, Va., June 12 -- United States Patent no. 12,300,867, issued on May 13, was assigned to Telefonaktiebolaget LM Ericsson (publ) (Stockholm).
"Dielectric filter" was invented by Jingpeng Li (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a dielectric filter. The dielectric filter includes a body; at least one dual mode resonant unit and at least one single mode resonant unit arranged in the body; and a groove structure formed in the body and configured to partially separate the at least one single mode resonant unit and the at least one dual mode resonant unit adjacent thereto. Each dual mode resonant unit at least has a first frequency resonant hole and a second frequency reson...