公开(公告)号：US20200328769A1

公开(公告)日：2020-10-15

申请号：US16911868

申请日：2020-06-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kaituo YANG ,  Xiang YI ,  Chirn Chye BOON ,  Junping ZHANG

IPC: H04B1/18 ,  H04B1/16 ,  H03F3/189

Abstract: A signal receiving circuit amplifies a radio frequency signal by using a first radio frequency amplifier, and outputs a first amplified signal in a same phase; amplifies the radio frequency signal by using a second radio frequency amplifier, and outputs a second amplified signal at an inverse phase. A first mixer mixes a first local oscillator signal with the first amplified signal to obtain a first frequency mixing signal; a second mixer mix a second local oscillator signal with the second amplified signal to obtain a second frequency mixing signal, where a phase of the first local oscillator signal is opposite to a phase of the second local oscillator signal; and after adding the first frequency mixing signal and the second frequency mixing signal, an output interface outputs the first frequency mixing signal and the second frequency mixing signal.