公开(公告)号：WO2021147737A1

公开(公告)日：2021-07-29

申请号：PCT/CN2021/071549

申请日：2021-01-13

Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Inventor： ABOUDINA, Mohamed ,  EMIRA, Ahmed ,  NALOUSI, Esmail Babakrpur

IPC: H04B1/12 ,  H03F2200/165 ,  H03F2200/171 ,  H03F2200/294 ,  H03F2200/451 ,  H03F3/19 ,  H03G2201/103 ,  H03G2201/307 ,  H03G3/3036 ,  H04B1/16 ,  H04L27/14

Abstract: A receiver circuit is disclosed. The receiver circuit includes an amplifier having an input terminal, where the amplifier is configured to generate an RF signal based on a signal received at the input terminal, where the RF signal includes an information signal and a blocker signal modulating an RF carrier frequency. The receiver circuit also includes a mixer configured to receive the RF signal and to downconvert the RF signal to generate a baseband signal, where the baseband signal includes the information signal and the blocker signal modulating a baseband carrier frequency, where the baseband carrier frequency is less than the RF carrier frequency, and where the mixer is further configured to selectively attenuate the blocker signal.