Patent ID: 8036303

Claim:
A transmitting apparatus comprising: a first pulse generating section that generates an in-phase component pulse signal; a second pulse generating section that generates a quadrature component pulse signal; a first pulse shaping filter that receives the in-phase component pulse signal as an input signal; a second pulse shaping filter that receives the quadrature component pulse signal as an input signal; a first variable coefficient filter that receives the in-phase component pulse signal as an input signal; a second variable coefficient filter that receives the quadrature component pulse signal as an input signal; a first addition operation section that adds an output signal of the first pulse shaping filter and an output signal of the first variable coefficient filter and outputs this added signal as a first in-phase component modulation signal; a second addition operation section that adds an output signal of the second pulse shaping filter and an output signal of the second variable coefficient filter and outputs this added signal as a first quadrature component modulation signal; an amplitude signal voltage generating section that generates an amplitude component modulation signal using a combination of the first in-phase component modulation signal and the first quadrature component modulation signal or a combination of an output signal of the first pulse shaping filter and an output signal of the second pulse shaping filter; a phase modulation wave generating section that generates a phase modulation wave using a signal not used in the amplitude signal voltage generating section in the combination of the first in-phase component modulation signal and the first quadrature component modulation signal or the combination of the output signal of the first pulse shaping filter and the output signal of the second pulse shaping filter; and a power amplifying section that generates a vector modulation wave acquired by amplitude-modulating the phase modulation wave in the amplitude component modulation signal.