ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,880, issued on Sept. 8, was assigned to Telefonaktiebolaget LM Ericsson (publ) (Stockholm).
"TM dual-mode dielectric resonator and TM dual-mode filter" was invented by Haiju Kang (Beijing), Xueyuan Zhang (Beijing) and Weidong Wang (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A TM dual-mode dielectric resonator, comprising: a metal cavity; and a TM dielectric resonator body located in the cavity and having grounding surfaces connected with walls of the cavity so that two electric fields are formed in first and second directions perpendicular to each other, characterized in that, two end surfaces of the TM dielectric resonator body which ar...