HIGH FREQUENCY AMPLIFIER CIRCUIT AND FEEDFORWARD DISTORTION COMPENSATION AMPLIFIER CIRCUIT

PROBLEM TO BE SOLVED: To provide a technology of executing temperature compensation of a high frequency amplifier circuit with a simple configuration. SOLUTION: The high frequency amplifier circuit 1b of the feedforward distortion compensation system is provided with a thermistor 16a (or 26a) connected in series with a main amplifier 18 (or a distortion component amplifier 28) and whose resistance decreases with a temperature rise in the main amplifier 18 (or a distortion component amplifier 28). Further, the high frequency amplifier circuit 1b is provided with an inductor 16b (or 26b) connected in parallel with the thermistor 16a (or 26a) and whose inductive component L is selected to be a value of satisfying a relation of ωL