公开(公告)号：US20220200541A1

公开(公告)日：2022-06-23

申请号：US17695065

申请日：2022-03-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie SUN ,  Yijun SUN ,  Hailei SUO ,  Jinhu CHEN ,  Song LI

IPC: H03F1/42 ,  H03F3/24 ,  H03F1/56

Abstract: A power amplifier circuit, a transmitter, and a network device are provided. The power amplifier circuit includes N input ports, N power amplifier branches, one combiner circuit, and one output port. Each of the N input ports is connected to one power amplifier branch, each of the power amplifier branches is connected to the combiner circuit, and the combiner circuit is further connected to the output port; the N power amplifier branches and the combiner circuit are configured to perform power amplification and combining on N input signals, to generate an output signal. The N power amplifier branches include one first power amplifier branch operates in a class AB or class B operating mode, and N−1 second power amplifier branches operate in a class C operating mode with different gate bias voltages, the gate bias voltages of the N−1 second power amplifier branches become lower in order.