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    • 10. 发明授权
    • Amplifier and mobile communication device
    • 放大器和移动通信设备
    • US09088248B2
    • 2015-07-21
    • US13472939
    • 2012-05-16
    • Amr ZohnyStephan LeuschnerJan-Erik Mueller
    • Amr ZohnyStephan LeuschnerJan-Erik Mueller
    • H03F1/22H03F3/193
    • H03F3/193
    • An amplifier includes a first lower active sub cell and a second lower active sub cell, each comprising an input terminal and an output terminal, wherein the input terminals of the lower active sub cells are connected to the amplifier input and the output terminals of the lower active sub cells are not shorted. Furthermore, the amplifier includes a first upper active sub cell and a second upper active sub cell, each including a biasing terminal, wherein the input terminals and the output terminals of the upper active sub cells are coupled between the output terminals of the lower active sub cells and the amplifier output. The amplifier includes a bias controller configured to provide a first biasing signal to the first upper active sub cell and a second biasing signal to the second upper active sub cell based on an output power of the output signal.
    • 放大器包括第一下部有源子单元和第二下部有源子单元,每个包括输入端子和输出端子,其中下部有源子单元的输入端子连接到放大器输入端,而下部有源子单元的输出端子 活动子单元不短路。 此外,放大器包括第一上活动子单元和第二上有源子单元,每个包括偏置端,其中上活动子单元的输入端和输出端耦合在下活动子的输出端之间 单元和放大器输出。 放大器包括偏置控制器,其被配置为基于输出信号的输出功率向第一上活动子单元提供第一偏置信号,并将第二偏置信号提供给第二上活动子单元。