ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,930, issued on Sept. 30, was assigned to CHANGQING BARROT TECHNOLOGY Ltd. (Chongqing, China).
"Power mixer, radio frequency circuit, device and equipment" was invented by Jie Su (Chongqing, China), Yizhe Xu (Chongqing, China) and Yong Zhu (Chongqing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention discloses a power mixer, radio frequency circuit, device and equipment, and belongs to the technical field of electronics and communication. The power mixer includes a mixer module, which amplifies an analog baseband current signal by a silicon germanium heterojunction bipolar transistor amplifying circuit, and converts a local oscillat...