ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,699,127, issued on Aug. 4.
"Mixed mode hybrid harmonic load pull system" was invented by Christos Tsironis (Kirkland, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hybrid multi-harmonic load pull tuner is composed of a main frame and a harmonic extension module. The main frame includes two independently controlled synchronized signal sources, one injecting power into the input of a DUT (transistor) and the other injecting power via a power amplifier into the output of the DUT. The harmonic extension module pre-matches the amplifier to the DUT at a fundamental frequency and creates arbitrary user defined impedances at two harmonic frequencies. T...