ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,413,187, issued on Sept. 9, was assigned to NXP USA INC. (Austin, Texas).
"Doherty amplifiers" was invented by Qi Hua (Wu Xi, China), Yunfei Wang (Chengdu, China), Qi Wu (Guiyang, China) and Changyang Wang (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A Doherty amplifier includes first and second input terminals, first and second amplifiers, and an output combiner circuit. The first amplifier includes a first amplifier input coupled to the first input terminal, and a first amplifier output. The second amplifier includes a second amplifier input coupled to the second input terminal, and a second amplifier output. The output combiner circuit i...