Patent ID: 7477882

Claim:
A reception apparatus comprising: a first amplification section that carries out processing of amplifying a received signal; a frequency conversion section that carries out processing of converting a frequency of the received signal amplified by the first amplification section from a radio frequency to a baseband comprising a lower frequency than the radio frequency; a second amplification section that amplifies the received signal whose frequency has been converted by the frequency conversion section, at a predetermined gain, in divided stages comprising an earlier stage and a later stage; a voltage calibration section that performs calibration processing on an offset voltage of the received signal generated in the earlier stage and the later stage during the amplification by the second amplification section, in order from the earlier stage to the later stage; a filter section that lets pass the received signal of a predetermined band at one of a first time constant, and a second time constant, which is a lower time constant than the first time constant, in each stage; a time constant control section that sets a time constant of the filter section with the second time constant before the calibration processing for each stage of the calibration processing, and changes the time constant of the filter section included in the stage in which the calibration processing is completed in order from the second time constant to the first time constant; and an operation control section that stops the operation of the first amplification section during the calibration processing in the earlier stage and causes the first amplification section to operate after the calibration processing in the earlier stage is completed, before the calibration processing in the later stage.