Digitalized radio frequency receiver with broadband

The invention discloses a digitalized radio frequency receiver with broadband for wireless communication and a digitalized radio frequency harmonic suppression unit. A radio frequency signal passes through a harmonic rejection (HR) sampling unit; high-mode interferences in the input signal are filtered and sampling is carried out on the signal by the sampling unit; an output intermediate frequency signal is processed by subsequent units, so that an interference of an aliasing effect can be effectively inhibited and broadband multimode and multi-protocol reception can be supported. Moreover, the architecture of the digitalized radio frequency receiver containing the HR sampling unit is characterized in that: a received radio frequency signal enters an LNA by an antenna; filtering and sampling are carried out on the amplified radio frequency signal by the HR sampling unit; a discrete intermediate frequency signal is outputted by the HR sampling unit and then is filtered and amplified by a DT filtering unit and an IFA; the processed signal is transmitted to an ADC; a generated digital signal is processed by a digital signal process part so as to complete signal demodulation, wherein a needed clock and control signal is provided by a clock and control unit. According to the provided receiver and the harmonic suppression unit, a broadband multi-mode and multi-protocol mode is supported; and the provided receiver is a novel digitalized radio frequency receiver.