Signal receiving circuit, signal processing chip, communications device, and signal receiving method

    公开(公告)号:US11128333B2

    公开(公告)日:2021-09-21

    申请号:US16911868

    申请日:2020-06-25

    IPC分类号: H04B1/18 H03F3/189 H04B1/16

    摘要: A signal receiving circuit amplifies a radio frequency signal by using a first radio frequency amplifier, 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, and a second mixer mixes 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. 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.

    COMMUNICATION RECEIVER AND METHOD
    2.
    发明申请

    公开(公告)号:US20180054221A1

    公开(公告)日:2018-02-22

    申请号:US15803002

    申请日:2017-11-03

    IPC分类号: H04B1/00 H04B1/18

    摘要: The communication receiver comprises a mixer being configured to mix the communication signal with a periodic mixing signal having a mixing frequency fC to obtain a mixed communication signal, wherein the mixed communication signal comprises a first frequency spectrum portion comprising the spectral region of interest being situated around a frequency fRF+fC and a second frequency spectrum portion comprising the spectral range of interest being situated around fRF−fC; a first demodulator being configured to demodulate a first frequency channel of the plurality of frequency channels within the spectral range of interest of the first frequency spectrum portion on the basis of a first local oscillator frequency fLO1; and a second demodulator being configured to demodulate a second frequency channel of the plurality of frequency channels within the spectral region of interest of the second frequency spectrum portion on the basis of a second local oscillator frequency fLO2.

    Communication receiver and method

    公开(公告)号:US10326480B2

    公开(公告)日:2019-06-18

    申请号:US15803002

    申请日:2017-11-03

    IPC分类号: H04B1/00 H04B1/18

    摘要: The communication receiver comprises a mixer being configured to mix the communication signal with a periodic mixing signal having a mixing frequency fC to obtain a mixed communication signal, wherein the mixed communication signal comprises a first frequency spectrum portion comprising the spectral region of interest being situated around a frequency fRF+fC and a second frequency spectrum portion comprising the spectral range of interest being situated around fRF−fC; a first demodulator being configured to demodulate a first frequency channel of the plurality of frequency channels within the spectral range of interest of the first frequency spectrum portion on the basis of a first local oscillator frequency fLO1; and a second demodulator being configured to demodulate a second frequency channel of the plurality of frequency channels within the spectral region of interest of the second frequency spectrum portion on the basis of a second local oscillator frequency fLO2.