公开(公告)号：US20210273615A1

公开(公告)日：2021-09-02

申请号：US16804929

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Jing-Hwa CHEN ,  Junzhi YU ,  Yan Kit Gary HAU ,  Guoqing FU ,  Xinwei WANG ,  Xiangdong ZHANG

IPC: H03F1/56 ,  H03F3/24 ,  H03F3/195 ,  H03F3/60 ,  H03F1/02

Abstract: Certain aspects of the present disclosure are directed to an amplifier. The amplifier may include a transistor coupled to an output of the amplifier, and a resonator coupled between the output of the amplifier and a reference potential node, a resonant frequency of the resonator being set to be at a subharmonic of a fundamental frequency of the amplifier, and an impedance of the resonator being greater than a load impedance of the amplifier at the fundamental frequency of the amplifier.