MULTI-CORE DIGITAL POWER AMPLIFIER WITH UNBALANCED COMBINER

    公开(公告)号:US20220416736A1

    公开(公告)日:2022-12-29

    申请号:US17359187

    申请日:2021-06-25

    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.

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