ALEXANDRIA, Va., June 9 -- United States Patent no. 12,289,098, issued on April 29, was assigned to Murata Manufacturing Co. Ltd. (Nagaokakyo, Japan).
"Filter using transversely-excited film bulk acoustic resonators" was invented by Wei Yang (Goleta, Calif.), Andrew Guyette (San Mateo, Calif.) and Gregory Dyer (Santa Barbara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A 6 GHz Wi-Fi bandpass filter includes a ladder filter circuit with two or more shunt transversely-excited film bulk acoustic resonators (XBARs) and two or more series XBARs. Each of the two or more shunt XBARS includes a diaphragm having an LN-equivalent thickness greater than or equal to 310 nm, and each of the two or more series X...