WIRELESS RECEIVING APPARATUS, WIRELESS COMMUNICATION APPARATUS, AND WIRELESS PORTABLE TERMINAL APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a wireless receiving apparatus capable of improving an interference wave resistance characteristic without deteriorating a receiving sensitivity characteristic, to provide a wireless communication apparatus, and to provide a wireless portable terminal apparatus.;SOLUTION: The wireless receiving apparatus 100B in the wireless communication apparatus 100 is provided with: a directional coupler 1 for distributing a radio signal including a required wave and an interference wave into two directions; a band pass filter 4 for extracting an interference wave component from one signal distributed by the directional coupler 1 and outputting the extracted component; an amplifier 5 for amplifying the level of an output signal from the band pass filter 4; a phase shifter 6 for shifting the phase of an output signal from the amplifier 5 by 180°; and a synthesizer 3 for synthesizing an output signal from the phase shifter 6 and the other signal from the directional coupler 1: and is constituted so as to synthesize the radio signal including the required wave and the interference wave and a radio signal obtained by shifting the phase of the interference wave by 180° to cancel the interference wave and to obtain a radio signal including only the required wave.;COPYRIGHT: (C)2007,JPO&INPIT