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    • 2. 发明申请
    • POWER AMPLIFIER AND METHOD THEREOF
    • 功率放大器及其方法
    • US20080079499A1
    • 2008-04-03
    • US11536134
    • 2006-09-28
    • Ming-Lin Tsai
    • Ming-Lin Tsai
    • H03F1/22
    • H03F3/21H03F1/223H03F3/193
    • A power amplifier amplifying an input signal to generate an output signal, comprising a cascode unit and a bias circuit. The cascode unit comprises a cascode stage, a first input stage, and a second input stage. The cascode stage generates the output signal. The first input stage, in cascode with the cascode transistor, has a first signal input to be biased to provide a first amplifier gain. The second input stage, in cascode with the cascode transistor, has a second signal input to be biased to provide a second amplifier gain. The bias circuit, coupled to the first and the second input stages comprises first and second switches. The first switch, coupled to the first input stage, is switched on to bias the first input stage with a bias voltage. The second switch, coupled to the second input stage, is switched on to bias the second input stage with the bias voltage.
    • 放大输入信号以产生输出信号的功率放大器,包括共源共同体单元和偏置电路。 共源共栅单元包括共源共栅级,第一输入级和第二输入级。 共源共栅级产生输出信号。 与共源共栅晶体管共源共栅的第一输入级具有被偏置以提供第一放大器增益的第一信号输入。 与共源共栅晶体管共源共栅的第二输入级具有被偏置以提供第二放大器增益的第二信号输入。 耦合到第一和第二输入级的偏置电路包括第一和第二开关。 耦合到第一输入级的第一开关被接通,以偏置第一输入级。 耦合到第二输入级的第二开关被接通,以偏置第二输入级。
    • 3. 发明授权
    • Power amplifier and method thereof
    • 功率放大器及其方法
    • US07420425B2
    • 2008-09-02
    • US11536134
    • 2006-09-28
    • Ming-Lin Tsai
    • Ming-Lin Tsai
    • H03F3/04
    • H03F3/21H03F1/223H03F3/193
    • A power amplifier amplifying an input signal to generate an output signal, comprising a cascode unit and a bias circuit. The cascode unit comprises a cascode stage, a first input stage, and a second input stage. The cascode stage generates the output signal. The first input stage, in cascode with the cascode transistor, has a first signal input to be biased to provide a first amplifier gain. The second input stage, in cascode with the cascode transistor, has a second signal input to be biased to provide a second amplifier gain. The bias circuit, coupled to the first and the second input stages comprises first and second switches. The first switch, coupled to the first input stage, is switched on to bias the first input stage with a bias voltage. The second switch, coupled to the second input stage, is switched on to bias the second input stage with the bias voltage.
    • 放大输入信号以产生输出信号的功率放大器,包括共源共同体单元和偏置电路。 共源共栅单元包括共源共栅级,第一输入级和第二输入级。 共源共栅级产生输出信号。 与共源共栅晶体管共源共栅的第一输入级具有被偏置以提供第一放大器增益的第一信号输入。 与共源共栅晶体管共源共栅的第二输入级具有被偏置以提供第二放大器增益的第二信号输入。 耦合到第一和第二输入级的偏置电路包括第一和第二开关。 耦合到第一输入级的第一开关被接通,以偏置第一输入级。 耦合到第二输入级的第二开关被接通,以偏置第二输入级。