Apparatus and method for suppressing low-frequency signal attenuation characteristics in a wireless communication system

摘要

The present invention is intended to realize an apparatus for effectively suppressing low frequency signal attenuation characteristics in a wireless communication system not only in a transmission operation but also in a reception waiting operation. In order to achieve these objects, a wireless communication system according to the present invention comprises a first frequency converter for mixing an RF signal received by a receiver and a predetermined local oscillation signal to output an intermediate frequency signal, A first modulator for modulating a local oscillation signal output from the first frequency converter using a voice signal transmitted from a transmitter and applying a modulated signal to the first frequency converter; A second modulator for modulating the local oscillation signal output from the first frequency converter using a predetermined low frequency oscillation signal to apply the modulated signal to the first frequency converter; and a second modulator for modulating the intermediate frequency signal output from the down-A second frequency converter for converting the signal into a band signal and outputting the signal; Emitter composed of a demodulating baseband signal output demodulator.