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    LINEARITY AND NOISE IMPROVEMENT FOR MULTILEVEL POWER AMPLIFIER SYSTEMS USING MULTI-PULSE DRAIN TRANSITIONS
    4.
    发明申请
    LINEARITY AND NOISE IMPROVEMENT FOR MULTILEVEL POWER AMPLIFIER SYSTEMS USING MULTI-PULSE DRAIN TRANSITIONS 有权
    使用多脉冲排水过渡的多功率放大器系统的线性和噪声改进

    公开(公告)号：US20160099686A1

    公开(公告)日：2016-04-07

    申请号：US14968045

    申请日：2015-12-14

    Applicant: Eta Devices, Inc.

    Inventor： David J. Perreault ,  Joel L. Dawson ,  Wei Li ,  Yevgeniy A. Tkachenko ,  Balaji Lakshminarayanan ,  John Hoversten

    IPC: H03F1/02 ,  H03F3/21 ,  H03F3/19

    CPC classification number: H03F1/0211 ,  H03F1/02 ,  H03F1/0227 ,  H03F3/19 ,  H03F3/21 ,  H03F3/211 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/511 ,  H03F2200/555 ,  H03F2203/21106 ,  H03G3/004 ,  H03G3/3042 ,  H04B1/0475 ,  H04B1/0483 ,  H04B2001/0408 ,  H04B2001/045

    Abstract: Described embodiments provide a radio frequency (RF) amplifier system having at least one amplifier. The at least one amplifier includes an RF input port, an RF output port and a drain bias port. At least one voltage modulator is coupled to the bias port of the least one amplifier to provide a bias voltage. The bias voltage is selected by switching among a plurality of discrete voltages. At least one filter circuit is coupled between the at least one voltage modulator and the at least one amplifier. The at least one filter circuit controls spectral components resultant from transitions in the bias voltage when switching among the plurality of discrete voltages. A controller dynamically adapts at least one setting of the at least one voltage modulator by using multi-pulse transitions when switching among the plurality of discrete voltages for a first operating condition of the RF amplifier.

    Abstract translation: 所描述的实施例提供了具有至少一个放大器的射频（RF）放大器系统。 所述至少一个放大器包括RF输入端口，RF输出端口和漏极偏置端口。 至少一个电压调制器耦合到至少一个放大器的偏置端口以提供偏置电压。 通过在多个离散电压之间切换来选择偏置电压。 至少一个滤波电路耦合在至少一个电压调制器和至少一个放大器之间。 所述至少一个滤波器电路控制在所述多个离散电压之间切换时由偏置电压的转变产生的频谱分量。 当在RF放大器的第一工作状态之间切换多个离散电压时，控制器通过使用多脉冲跃迁来动态地适配至少一个电压调制器的至少一个设置。

    Transmission-line resistance compression networks and related techniques
    5.
    发明授权
    Transmission-line resistance compression networks and related techniques 有权
    传输线电阻压缩网络及相关技术

    公开(公告)号：US08830709B2

    公开(公告)日：2014-09-09

    申请号：US13800221

    申请日：2013-03-13

    Applicant: Eta Devices, Inc.

    Inventor： David J. Perreault

    IPC: H02J1/10 ,  H03H7/38 ,  H02M7/06 ,  H02M7/217 ,  H03F3/00

    CPC classification number: H02M7/217 ,  H02M7/06 ,  H03F1/02 ,  H03F3/00 ,  H03F3/195 ,  H03F3/211 ,  H03F3/24 ,  H03F3/245 ,  H03F3/602 ,  H03F2200/06 ,  H03F2200/09 ,  H03F2200/192 ,  H03F2200/204 ,  H03F2200/462 ,  H03H7/38 ,  Y10T307/25

    Abstract: A resistance compression network to shape an input impedance at a port for transferring energy to multiple loads at a first frequency includes first and second transmission line segments having outputs for coupling to first and second loads and having different electrical lengths at a first frequency and a compression port coupled to inputs of both the first and the second transmission line segments. Over a set of operating conditions of interest, an equivalent resistance looking into the compression port at the frequency varies over a first resistance range as equivalent resistances of the first and second loads vary over a second resistance range and a range ratio associated with the first resistance range is less than a range ratio associated with the second resistance range and the range ratio of a subject range is a ratio of a largest resistance value in the subject range to a smallest resistance value in the subject range.

    Abstract translation: 在端口处形成输入阻抗以将能量传递到多个负载的电阻压缩网络以第一频率包括具有输出的第一和第二传输线段，其具有耦合到第一和第二负载并且在第一频率和压缩下具有不同的电长度 端口耦合到第一和第二传输线段的输入。 在一组感兴趣的操作条件下，在第一电阻范围内观察频率处的压缩端口的等效电阻在第一和第二负载的等效电阻在第二电阻范围和与第一电阻相关联的范围比中变化时变化 范围小于与第二电阻范围相关联的范围比，并且被摄体范围的范围比是被摄体范围内的最大电阻值与被摄体范围内的最小电阻值的比。

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