| 摘要 |
It is possible to increase linearity in a power amplification circuit. A power amplification circuit includes a first amplification element which amplifies and outputs an input signal with a gain according to the level of the input signal and the level of a bias voltage, a second amplification element which has the same gain characteristic as the first amplification element and amplifies and outputs the input signal, and a variable bias voltage generation circuit which generates a bias voltage decreasing with an increase in level of an output signal of the second amplification element. |
