| 摘要 |
A power amplifier (106) has a linear operation mode for performing power amplification by use of a linear operating domain in an input-output power characteristic and a saturation operation mode for performing power amplification by use of a saturation operation domain in the input-output power characteristic. An amplitude control section (112) outputs gain control voltage data for controlling a gain of a gain control amplifier (105) and power control voltage data for controlling a source voltage of a power amplifier (106) in accordance with a transmission power setting value, thereby causing the power amplifier (106) to operate in any one of the operation modes. An amplitude correction section (122) outputs a reference correction value for correcting the gain control voltage data and the power control voltage data output from the amplitude control section (112) in accordance with the operation mode determined by a mode determination section (110) and temperature information detected by a temperature sensor (130).
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