ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,512,791, issued on Dec. 30, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Doherty amplifier" was invented by Takuma Torii (Tokyo), Yuji Komatsuzaki (Tokyo) and Shintaro Shinjo (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A Doherty amplifier includes: a first amplifying element to amplify a first signal; a second amplifying element to amplify a second signal having a phase difference with the first signal; a first transmission line connected to an output terminal of the first amplifying element; and a second transmission line connected to an output terminal of the second amplifying element, wherein the first transmission line and the secon...