ALEXANDRIA, Va., June 16 -- United States Patent no. 12,658,855, issued on June 16, was assigned to Ohio State Innovation Foundation (Columbus, Ohio).
"Single-input broadband Doherty-HDmax continuum power amplifier" was invented by Patrick Roblin (Columbus, Ohio) and Chenyu Liang (Columbus, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a single-input hybrid Doherty power amplifier (PA). Unlike the conventional Lambda/4 Doherty PA inverter which only performs the correct load modulation at its center frequency, the hybrid Doherty PA (HDOmega-PA) combiner network achieves a wideband load modulation using the frequency dependence of the electrical length of the output combiner lines ve...