ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,633, issued on March 18, was assigned to MURATA MANUFACTURING Co. LTD. (Nagaokakyo, Japan).
"Filter using transversely-excited film bulk acoustic resonators" was invented by Luke Myers (Santa Barbara, Calif.), Wei Yang (Goleta, Calif.), Andrew Guyette (San Mateo, Calif.) and Greg Dyer (Santa Barbara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A 5 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 360 nm, a...