ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,482,915, issued on Nov. 25, was assigned to Apple Inc. (Cupertino, Calif.).
"Transformer based series Doherty power amplifier" was invented by Fei Wang (Santa Clara, Calif.) and Xiang Guan (Santa Clara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure is directed to a series Doherty power amplifier including two-transformers. The series Doherty combiner may include a first branch including a main amplifier and a first transformer coupled to a load. In particular, a primary inductor of the first transformer may be coupled to the main amplifier and a secondary inductor of the first transformer may couple to the load. The series Dohert...