POWER AMPLIFIER MODULE

To provide a power amplifier module that can improve linearity and efficiency with a simple configuration.SOLUTION: A power amplifier module 2 includes a first amplification circuit 2D that amplifies a radio frequency (RF) signal with a first gain according to a first control signal S1 to generate a first amplification signal, and a second amplification circuit 2P that amplifies the first amplification signal with a second gain corresponding to a second control signal S2 to generate a second amplification signal, and the second control signal S2 is a control signal for increasing the power supply voltage Vccp of the second amplifier circuit 2P as the peak-to-average power ratio (PAPR) of the RF signal is larger, and the first control signal S1 is a control signal for controlling the first gain of the first amplifier circuit 2D so as to compensate for the fluctuation of the second gain caused by the fluctuation of the power supply voltage Vccp of the amplifier circuit 2P.SELECTED DRAWING: Figure 1 【課題】簡易な構成で、線形性及び効率の向上を可能とする電力増幅モジュールを提供する。【解決手段】第１制御信号Ｓ１に応じた第１ゲインで無線周波数（ＲＦ）信号を増幅して第１増幅信号を生成する第１増幅回路２Ｄと、第２制御信号Ｓ２に応じた第２ゲインで第１増幅信号を増幅して第２増幅信号を生成する第２増幅回路２Ｐと、を備えた電力増幅モジュール２であって、第２制御信号Ｓ２は、ＲＦ信号のピーク対平均電力比（ＰＡＰＲ）が大きいほど第２増幅回路２Ｐの電源電圧Ｖｃｃｐを大きくするための制御信号であり、第１制御信号Ｓ１は、第２増幅回路２Ｐの電源電圧Ｖｃｃｐの変動に伴う第２ゲインの変動を補償するように、第１増幅回路２Ｄの第１ゲインを制御するための制御信号である。【選択図】図１