US Patent Issued to Murata Manufacturing on June 16 for "Doherty amplifier circuit" (Japanese Inventor)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,658,858, issued on June 16, was assigned to Murata Manufacturing Co. Ltd. (Kyoto, Japan).

"Doherty amplifier circuit" was invented by Shohei Imai (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A Doherty amplifier circuit includes a carrier amplifier including one or more amplifiers, and a peaking amplifier including one or more amplifiers. At least one of the amplifiers includes a first transistor and a current draw circuit. The first transistor receives, at its base or gate, a first radio frequency signal, and outputs, from its emitter or source, a second radio frequency signal obtained by amplifying the first radio frequency signal. The ...