ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,824, issued on Oct. 14, was assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (Stockholm).
"Resonator apparatus, filter apparatus as well as radio frequency and microwave device" was invented by Honglan Wang (Beijing), Weidong Wang (Beijing), Jun Fu (Beijing) and Haitao Liu (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A resonator apparatus, a filter apparatus as well as a radio frequency and microwave device are disclosed. According to an embodiment, the resonator apparatus comprises an electrically conductive case and a dual-mode dielectric resonator provided in the electrically conductive case. The dual-mode dielectric resonator compri...