Abstract: A transmission circuit comprises a ??? modulator to perform ??? modulation of an amplitude modulation component of a modulation signal and to output a pulse width modulation signal, an angle modulator to generate an angle modulation component signal of a signal obtained by multiplying the modulation signal by a transmission output control coefficient corresponding to a transmission output in a power amplifier, and a multiplier to multiply the pulse width modulation signal by the angle modulation component signal and to output a result of the multiplication as an output signal to the power amplifier.
Type:
Grant
Filed:
June 21, 2012
Date of Patent:
July 29, 2014
Assignees:
Fujitsu Limited, The University of Elecro-Communications