ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,463,595, issued on Nov. 4, was assigned to Qorvo US Inc. (Greensboro, N.C.).
"Doherty power amplifier" was invented by Ming Ji (Melrose, Mass.) and Douglas Andrew Teeter (Lexington, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an amplifier having a carrier amplifier configured as a common-emitter carrier power stage and a peaking amplifier configured as a common-emitter peaking power stage. Further included is power adaptive biasing circuitry coupled between the carrier amplifier and the peaking amplifier, wherein the power adaptive biasing circuitry is configured to sense direct current base voltages of the common-emitter carrier po...