Patent ID: 7560984

Claim:
A transmitter comprising: modulated signal generating means for generating a modulated signal, at least two amplitude amplifying means for amplifying the amplitude component of said modulated signal, first delay time correcting means for adjusting the amount of delay time of the amplitude component of said modulated signal by adding a predetermined amount of amplitude delay time to the amplitude component of said modulated signal supplied to at least any one amplitude amplifying means of at least said two amplitude amplifying means, control means for outputting a control signal according to a signal relating to the magnitude of the amplitude component of said modulated signal, switching means for selecting the amplitude components having different amounts of delay time and being output from at least said two amplitude amplifying means and for outputting the amplitude components to at least two output terminals according to said control signal, second delay time correcting means for adjusting the amount of delay time of said modulated signal by adding a predetermined amount of phase delay time to said modulated signal and for outputting said modulated signal, and a high-frequency power amplifier comprising at least two stages of amplifiers, in which said modulated signal, the amount of phase delay time of which is adjusted using said second delay time correcting means, is input to the high-frequency input terminal thereof, at least two amplitude components being output from at least two output terminals of said switching means are input to the power supply terminals of at least said two stages of amplifiers, respectively, and a modulated wave is output eventually, wherein according to said control signal, said switching means switches whether the amplitude components being output from at least said two amplitude amplifying means, having different amounts of delay time, are supplied to the power supply terminals of at least said two stages of amplifiers separately, or any one of the amplitude components of at least said two amplitude amplifying means is commonly supplied to the power supply terminals of at least said two stages of amplifiers.