DEVICES AND METHODS THAT FACILITATE POWER AMPLIFIER OFF STATE PERFORMANCE
    3.
    发明申请
    DEVICES AND METHODS THAT FACILITATE POWER AMPLIFIER OFF STATE PERFORMANCE 审中-公开
    使功率放大器关闭状态的设备和方法

    公开(公告)号:US20170063308A1

    公开(公告)日:2017-03-02

    申请号:US14840963

    申请日:2015-08-31

    Abstract: A peaking amplifier is disclosed. The peaking amplifier includes a driver stage, a final stage, and an interstage matching network. The driver stage has a load impedance and is configured to generate a driver output based on an input signal. The final stage has a final stage input impedance and is configured to generate a peaking output based on the driver output. The interstage matching network is coupled to the driver stage and the final stage. The interstage matching network is configured to transform the final stage input impedance to the load impedance for the driver stage when the peaking amplifier is ON and to provide a short to an input of the final stage when the peaking amplifier is in an OFF state.

    Abstract translation: 公开了一种峰值放大器。 峰值放大器包括驱动级,最后级和级间匹配网络。 驱动器级具有负载阻抗,并且被配置为基于输入信号产生驱动器输出。 最终阶段具有最终级输入阻抗,并且被配置为基于驱动器输出生成峰值输出。 阶段匹配网络耦合到驱动阶段和最后阶段。 阶段匹配网络被配置为当峰化放大器导通时将最终级输入阻抗转换为驱动级的负载阻抗,并且当峰化放大器处于关闭状态时,将最终级输入阻抗转换为最终级的输入。

    Interstage Matching Network
    5.
    发明申请

    公开(公告)号:US20180367104A1

    公开(公告)日:2018-12-20

    申请号:US15627880

    申请日:2017-06-20

    Abstract: A circuit includes a first power transistor stage internally configured to function as a voltage-controlled current source, a second power transistor stage having an input impedance which varies as a function of input power and an interstage matching network coupling an output of the first power transistor stage to an input of the second power transistor stage. The interstage matching network is configured to provide impedance inversion between the input of the second power transistor stage and the output of the first power transistor stage. The impedance inversion provided by the interstage matching network transforms the first power transistor stage from functioning as a voltage-controlled current source to functioning as a voltage-controlled voltage source at the input of the second power transistor stage.

    LOW-COMPLEXITY ACPR-ENHANCING DIGITAL RF MIMO TRANSMITTER
    8.
    发明申请
    LOW-COMPLEXITY ACPR-ENHANCING DIGITAL RF MIMO TRANSMITTER 有权
    低复杂度ACPR增强型数字射频MIMO发射机

    公开(公告)号:US20160329935A1

    公开(公告)日:2016-11-10

    申请号:US14704294

    申请日:2015-05-05

    CPC classification number: H04L27/205 H04B1/0475 H04B1/0483 H04L25/4902

    Abstract: The present disclosure relates to a low-complexity transmitter architecture that drives phase modulators with digital signals to generate a pulse width modulated (PWM) signal that is transmitted by an antenna. In some embodiments, the system has a pre-processing element that generates first and second digital control signals from a digital baseband signal. A first phase modulation component introduces a first phase shift into a first local oscillator signal based upon the first control signal and generates a first digital signal corresponding to the first phase shift. A second phase modulation component introduces a second phase shift into the first local oscillator signal based upon the second control signal and generates a second digital signal corresponding to the second phase shift. A combination element is configured to combine the first and second digital output signals to generate an RF pulse width modulated (RF-PWM) signal.

    Abstract translation: 本公开涉及一种低复杂度的发射机架构,其用数字信号驱动相位调制器以产生由天线发射的脉宽调制(PWM)信号。 在一些实施例中,系统具有从数字基带信号产生第一和第二数字控制信号的预处理元件。 第一相位调制分量基于第一控制信号将第一相移引入第一本地振荡器信号,并产生对应于第一相移的第一数字信号。 第二相位调制分量基于第二控制信号将第二相移引入第一本地振荡器信号,并产生对应于第二相移的第二数字信号。 组合元件被配置为组合第一和第二数字输出信号以产生RF脉冲宽度调制(RF-PWM)信号。

    System and Method for Generating a Pulse-width Modulated Signal
    9.
    发明申请
    System and Method for Generating a Pulse-width Modulated Signal 审中-公开
    用于产生脉宽调制信号的系统和方法

    公开(公告)号:US20140132363A1

    公开(公告)日:2014-05-15

    申请号:US14159252

    申请日:2014-01-20

    CPC classification number: H03K7/08 H03F3/187 H03F3/217 H03F2200/351

    Abstract: In an embodiment, a method of generating a pulse-width modulated signal from an input signal includes calculating a finite number of basis functions of a first pulse-width modulated signal based on the input signal, and forming an electronic output based on the calculated finite number of basis functions.

    Abstract translation: 在一个实施例中,从输入信号产生脉冲宽度调制信号的方法包括:基于输入信号计算第一脉冲宽度调制信号的有限数量的基函数,以及基于所计算的有限值形成电子输出 基础功能数量。

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