ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,218,635, issued on Feb. 4, was assigned to Huawei Technologies'Co.'Ltd.' (Guangdong, China).
"Power amplifier circuit" was invented by Zhixiong Zeng (Shanghai), Jie Sun (Shanghai) and Hailei Suo (Chengdu, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power amplifier circuit includes: a first branch, including a first amplifier and a first matching network cascaded; a second branch, including a second amplifier and a second matching network cascaded, where a first coupled line enables the first branch and the second branch to form a first combiner; a third branch, including a third amplifier and a third matching network cascaded; and a fourth bra...