ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,296, issued on Oct. 20, was assigned to Qorvo US Inc. (Greensboro, N.C.).
"Doherty power amplifier system" was invented by George Maxim (Saratoga, Calif.), Nadim Khlat (Cugnaux, France) and Baker Scott (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A Doherty amplifier system is disclosed. The Doherty amplifier system includes a carrier amplifier having a carrier input and a carrier output, and a peaking amplifier having a peaking input coupled to the carrier input and a peaking output coupled to the carrier output. Analog pre-distortion circuitry is configured to linearize the carrier amplifier and linearize the peaking amplifier b...