A high frequency variable gain amplification device 100 includes: a
feedback circuit 103 capable of changing a feedback impedance to adjust
the gain of an amplifier 101 in accordance with a control signal from a
control device 200; and a current consumption adjustment circuit 102
capable of adjusting current consumption of the amplifier 101. The
control device 200 controls the feedback impedance and the current
consumption based on a desired signal power level and an undesired signal
power level. If the desired signal power level exceeds a predetermined
value, the control device 200 reduces the feedback impedance to increase
the amount of a feedback signal, thereby allowing the amplifier 101 to
operate with low gain so as to prevent the distortion characteristic from
being reduced and to reduce the current consumption.