公开(公告)号：US20220416736A1

公开(公告)日：2022-12-29

申请号：US17359187

申请日：2021-06-25

Applicant: Intel Corporation

Inventor： David Ben-Haim ,  Ofir Degani ,  Assaf Ben-Bassat ,  Anna Nazimov ,  Naor Shay

IPC: H03F3/24 ,  H03F3/60 ,  H03F3/189

Abstract: Various embodiments provide systems, devices, and methods for a multi-core digital power amplifier with an unbalanced power combiner. In one example, two or more cores are combined with a transformer section that has a first coupling coefficient and another two or more cores are combined with a second transformer section that has a second coupling coefficient that is different than the first coupling coefficient. The outputs of different cores may be cross-coupled with the primary inductors of the transformers. The digital power amplifier may provide an output power that is flat over a relatively wide operating range. Other embodiments may be described and claimed.