Apparatus and method for power control

摘要

A gate voltage storage table 103 stores therein a control voltage at the time of an inverse gain characteristic of a power amplifier of signals. The control voltage is read from the gate voltage storage table 103 in response to a linear control signal. An average between a gain characteristic of the power amplifier 101 and the inverse gain characteristic thereof is taken in such a manner that this read control voltage is applied to a control electrode of the power amplifier 101, thus gain of the power amplifier 101 becomes linear.