公开(公告)号：US20170077875A1

公开(公告)日：2017-03-16

申请号：US15362502

申请日：2016-11-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongge SU ,  Lei YANG ,  Kun WANG

IPC: H03F1/02 ,  H03F3/21

CPC classification number: H03F1/0288 ,  H03F3/189 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/411 ,  H03F2203/21103 ,  H03F2203/21106 ,  H03F2203/21142

Abstract: A Doherty power amplifier (100) includes: a first amplification circuit (110), including a main power amplification branch and at least one auxiliary power amplification branch; a delay device (383), connected in the main power amplification branch; a combiner network (140), configured to: perform impedance inversion on the first amplification circuit (110), and couple an output end of the main power amplification branch and an output end of the at least one auxiliary power amplification branch to a load (160); and a first power divider (130), connected to an input end of the main power amplification branch and an input end of the at least one auxiliary power amplification branch, and configured to allocate an input signal of the first power divider (130) to the main power amplification branch and the at least one auxiliary power amplification branch.

Abstract translation: 多赫蒂功率放大器（100）包括：第一放大电路（110），包括主功率放大分支和至少一个辅助功率放大分支; 延迟装置（383），连接在主功率放大分支中; 组合器网络（140），被配置为：在所述第一放大电路（110）上执行阻抗反转，并且将所述主功率放大分支的输出端和所述至少一个辅助功率放大分支的输出端耦合到负载（ 160）; 以及第一功率分配器（130），其连接到所述主功率放大分支的输入端和所述至少一个辅助功率放大分支的输入端，并且被配置为将所述第一功率分配器（130）的输入信号分配给 主功率放大分支和至少一个辅助功率放大分支。