ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,408, issued on Dec. 2, was assigned to Qorvo US Inc. (Greensboro, N.C.).
"Power amplifier system" was invented by Baker Scott (San Jose, Calif.), George Maxim (Saratoga, Calif.) and Chong Woo (Fremont, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power amplifier system is disclosed having an N number of transistors coupled together drain-to-source between a supply node and a fixed voltage node, wherein a first one of the N number of transistors coupled nearest to the fixed voltage node is configured to operate as an amplifying device in an ON-mode, and remaining ones of the N number of transistors are configured to operate as cascode devic...