Method of compensating operation of a transmitter includes a power amplifier of RF and modulation circuit current for use with a power amplifier of RF.

摘要

Method of compensating operation of a transmitter includes a power amplifier of RF and modulation circuit for use with a current amplifier RF power amplification circuit includes a power amplifier for operation so as saturad polarized The current source, and a controllable to provide power supply for the power amplifier.The controllable current source performs desired amplitude modulation of the output signal from the power amplifier by modulating the current of supply that he provides responsive to an information signal amplitude.In one or more forms of realization, the current source includes a circuit that is configured to adjust one or more parameters of operation of the transmitter, responsive to changes of detection in DC resistance effective power amplifier.For example, the circuit can generate a signal compensation reduces the resistance of the CC effective responsive to detection that the effective resistance of CC was unwanted.By way of examples is not limiting, such compensation may be effected by change of a current mirror, a combination of impedance of the amplifier to antenna, a bias amplifier or dimension of the device, or the imposition of some form of regression of signs of T. Ransmissu00e3o.