ALEXANDRIA, Va., March 24 -- United States Patent no. 12,586,883, issued on March 24, was assigned to Telefonaktiebolaget LM Ericsson (publ) (Stockholm).
"Filter unit, antenna filter unit and radio unit" was invented by Jin Pu (Beijing), Junming Li (Beijing) and Xueyuan Zhang (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a filter unit, including: a cavity filter including a hollow main body, with an inner-side surface of the main body defining a closed cavity for housing resonance elements, the main body is formed by joining a filter chassis part and a filter cover part covering the filter chassis part, wherein an outer-side surface of the filter chassis part or th...