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20 条记录 (耗时 0.019 秒)

    Power distribution and biasing in RF switch-mode power amplifiers
    14.
    发明授权
    Power distribution and biasing in RF switch-mode power amplifiers 有权

    公开(公告)号：US07250820B2

    公开(公告)日：2007-07-31

    申请号：US11282158

    申请日：2006-01-13

    申请人： Ronald A. Meck

    发明人： Ronald A. Meck

    IPC分类号： H03F3/04

    CPC分类号： H03F1/0261 ,  H03F1/30 ,  H03F3/195 ,  H03F2200/408

    摘要： Methods of and apparatus for distributing power and biasing RF PAs. A power distribution network includes a pre-final amplifier stage power distribution network and a final amplifier stage power distribution network. The pre-final amplifier stage power distribution network includes one or more pre-final amplifier stage power distribution branches, which may be configured to distribute power from one or more pre-final amplifier power supplies to one or more pre-final amplifier stages. Each pre-final amplifier stage power distribution branch comprises a π C-R-C network coupled to an inductive load. A final amplifier stage power distribution network is configured to distribute power from a final amplifier stage power supply to a final stage of the amplifier circuit.

    Power distribution and biasing in RF switch-mode power amplifiers
    15.
    发明授权
    Power distribution and biasing in RF switch-mode power amplifiers 有权

    公开(公告)号：US07227419B2

    公开(公告)日：2007-06-05

    申请号：US11233397

    申请日：2005-09-21

    申请人： Ronald A. Meck

    发明人： Ronald A. Meck

    IPC分类号： H03F3/04

    CPC分类号： H03F1/0261 ,  H03F1/30 ,  H03F3/195 ,  H03F2200/408

    摘要： Methods of and apparatus for distributing power and biasing RF PAs. A power distribution network includes a pre-final amplifier stage power distribution network and a final amplifier stage power distribution network. The pre-final amplifier stage power distribution network includes one or more pre-final amplifier stage power distribution branches, which may be configured to distribute power from one or more pre-final amplifier power supplies to one or more pre-final amplifier stages. Each pre-final amplifier stage power distribution branch comprises a π C-R-C network coupled to an inductive load. A final amplifier stage power distribution network is configured to distribute power from a final amplifier stage power supply to a final stage of the amplifier circuit.

    Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance
    16.
    发明授权
    Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance 有权
    使用集总和分布电感的放大器中阻抗匹配的方法和装置

    公开(公告)号：US07206553B2

    公开(公告)日：2007-04-17

    申请号：US11194047

    申请日：2005-07-28

    申请人： Ronald A. Meck

    发明人： Ronald A. Meck

    IPC分类号： H04B1/04 ,  H01Q11/12

    CPC分类号： H03H7/383

    摘要： An impedance matching circuit (140) includes a capacitive element (C1, 220), having a capacitance C, coupled in parallel with an output node (215) of the matching circuit, and an inductor (L1, 225) coupled in series with a transmission line (T1, 230) between the input node and the output node. The transmission line has a length that, in combination with the inductor, provides impedance substantially equal to the input impedance of the transmission circuit (150) at a frequency of interest. In one embodiment, the inductor is connected to an output (195) of an amplifier (180), and the transmission line is connected to the inductor and to the output (215). The capacitive element is connected to the transmission line such that the length of the transmission line between the inductor and the capacitive element provides the desired inductance.

    摘要翻译： 阻抗匹配电路（140）包括具有与匹配电路的输出节点（215）并联耦合的电容C的电容元件（C 1，220）和电感器（L 在输入节点和输出节点之间与传输线（T 1，T 2，230）串联耦合。 传输线具有与感应器组合提供的阻抗基本上等于感兴趣频率的传输电路（150）的输入阻抗的长度。 在一个实施例中，电感器连接到放大器（180）的输出（195），并且传输线连接到电感器和输出端（215）。 电容元件连接到传输线，使得电感器和电容元件之间的传输线的长度提供期望的电感。

    Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance
    17.
    发明授权
    Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance 有权
    使用集总和分布电感的放大器中阻抗匹配的方法和装置

    公开(公告)号：US07071792B2

    公开(公告)日：2006-07-04

    申请号：US09942448

    申请日：2001-08-29

    申请人： Ronald A. Meck

    发明人： Ronald A. Meck

    IPC分类号： H04B1/04 ,  H04Q11/12

    CPC分类号： H03H7/383

    摘要： An impedance matching circuit (140) includes a capacitive element (C1, 220), having a capacitance C, coupled in parallel with an output node (215) of the matching circuit, and an inductor (L1, 225) coupled in series with a transmission line (T1, 230) between the input node and the output node. The transmission line has a length that, in combination with the inductor, provides impedance substantially equal to the input impedance of the transmission circuit (150) at a frequency of interest. In one embodiment, the inductor is connected to an output (195) of an amplifier (180), and the transmission line is connected to the inductor and to the output (215). The capacitive element is connected to the transmission line such that the length of the transmission line between the inductor and the capacitive element provides the desired inductance.

    摘要翻译： 阻抗匹配电路（140）包括具有与匹配电路的输出节点（215）并联耦合的电容C的电容元件（C 1，220）和电感器（L 在输入节点和输出节点之间与传输线（T 1，T 2，230）串联耦合。 传输线具有与感应器组合提供的阻抗基本上等于感兴趣频率的传输电路（150）的输入阻抗的长度。 在一个实施例中，电感器连接到放大器（180）的输出（195），并且传输线连接到电感器和输出端（215）。 电容元件连接到传输线，使得电感器和电容元件之间的传输线的长度提供期望的电感。

    Constant impedance for switchable amplifier with power control
    18.
    发明授权
    Constant impedance for switchable amplifier with power control 有权
    具有功率控制的可切换放大器的恒定阻抗

    公开(公告)号：US06215355B1

    公开(公告)日：2001-04-10

    申请号：US09416865

    申请日：1999-10-13

    申请人： Ronald A. Meck ,  Earl W. McCune ,  Lawrence M. Burns

    发明人： Ronald A. Meck ,  Earl W. McCune ,  Lawrence M. Burns

    IPC分类号： H03F114

    CPC分类号： H03G1/0023 ,  H03F3/604 ,  H03F3/72 ,  H03F2203/7209 ,  H03F2203/7221

    摘要： The present invention, generally speaking, provides an improved power amplifier that minimizes impedance changes as the power amplifier changes from one operational state to another. In an exemplary embodiment, the present power amplifier is based on the well-known cascode amplifier. In a cascode amplifier, a first transistor operates in the common-source (common emitter) configuration to convert the input signal voltage (or current) into an amplified current, and a second transistor operates in the common-gate (common-base) configuration to convert the output current from the first transistor into an output voltage.

    摘要翻译： 一般而言，本发明提供了一种改进的功率放大器，其在功率放大器从一个操作状态变为另一个操作状态时使阻抗变化最小化。 在示例性实施例中，本功率放大器基于公知的共源共栅放大器。 在共源共栅放大器中，第一晶体管以共源（公共发射极）配置工作，以将输入信号电压（或电流）转换为放大电流，并且第二晶体管以共栅（公共基极）配置 以将来自第一晶体管的输出电流转换为输出电压。

    RF power amplifier having high power-added efficiency
    19.
    发明授权
    RF power amplifier having high power-added efficiency 有权
    RF功率放大器具有高功率附加效率

    公开(公告)号：US07265618B1

    公开(公告)日：2007-09-04

    申请号：US09564548

    申请日：2000-05-04

    申请人： Ronald A. Meck

    发明人： Ronald A. Meck

    IPC分类号： H03F3/217

    CPC分类号： H03F3/193 ,  H03C5/00 ,  H03F1/0227 ,  H03F1/0244 ,  H03F1/0261 ,  H03F2200/168 ,  H03F2200/18 ,  H03F2200/504 ,  H03F2200/75 ,  H03G3/004

    摘要： The present invention, generally speaking, provides an RF power amplifier that exhibits high PAE at high output powers. The design of the power amplifier is based on the observation that the switching transistor is controlled by either voltage (for a FET) or current (for bipolar transistors), but not both. Thus, it is not necessary to develop power from the driver amplifier in order to operate the final stage as a switch. This recognition runs exactly counter to conventional wisdom, i.e., the concept of impedance matching for interstage design of high efficiency power amplifiers. It is impossible to develop solely a voltage waveform or a current waveform in a passband (resonant) network such as an RF power amplifier—both voltages and current must exist. In accordance with one aspect of the invention, however, instead of maximizing power transfer, power consumption is reduced while maintaining the magnitude of the voltage (or current) waveform. In accordance with another aspect of the invention, the driver is designed to, along with the final stage, operate in switch mode. In this instance, the design of the interstage network is similar to that of a Class E output stage. In the case of the interstage network, however, the objective is not to develop maximum power across the load (as in the case of the Class E output stage). Rather, the objective is to develop the maximum voltage across the driver's load (which is the switch input). In this arrangement, the input drive of the switch may be sufficiently high that the operating voltage of the driver stage may be reduced. This reduction further reduces the DC supply power to the driver, enhancing PAE.

    摘要翻译： 一般而言，本发明提供一种在高输出功率下表现出高PAE的RF功率放大器。 功率放大器的设计是基于开关晶体管由电压（对于FET）或电流（双极晶体管）控制的观察，但不是两者都是这样。 因此，不需要从驱动放大器开发功率，以便将最终级作为开关进行操作。 这种识别与传统智慧（即，用于高效率功率放大器的级间设计的阻抗匹配的概念）完全相反。 在RF功率放大器这样的通带（谐振）网络中，仅仅开发电压波形或电流波形是不可能的，因此必须存在电压和电流。 然而，根据本发明的一个方面，代替最大化功率传输，在保持电压（或电流）波形的幅度的同时降低功耗。 根据本发明的另一方面，驱动器被设计成与最终级一起在开关模式下操作。 在这种情况下，级间网络的设计类似于E类输出级的设计。 然而，在级联网络的情况下，目标是不要跨负载开发最大功率（如E类输出级的情况）。 相反，目标是开发驱动器负载（这是开关输入）的最大电压。 在这种布置中，开关的输入驱动可能足够高，使得驱动级的工作电压可能降低。 这种降低进一步降低了对驱动器的直流供电能力，增强了PAE。

    Power distribution and biasing in RF switch-mode power amplifiers
    20.
    发明授权
    Power distribution and biasing in RF switch-mode power amplifiers 有权
    RF开关模式功率放大器的功率分配和偏置

    公开(公告)号：US06995613B2

    公开(公告)日：2006-02-07

    申请号：US10631931

    申请日：2003-07-30

    申请人： Ronald A. Meck

    发明人： Ronald A. Meck

    IPC分类号： H03F3/04

    CPC分类号： H03F1/0261 ,  H03F1/30 ,  H03F3/195 ,  H03F2200/408

    摘要： Methods of and apparatus for distributing power and biasing RF PAs. A power distribution network includes a pre-final amplifier stage power distribution network and a final amplifier stage power distribution network. The pre-final amplifier stage power distribution network includes one or more pre-final amplifier stage power distribution branches, which may be configured to distribute power from one or more pre-final amplifier power supplies to one or more pre-final amplifier stages. Each pre-final amplifier stage power distribution branch comprises a π C-R-C network coupled to an inductive load. A final amplifier stage power distribution network is configured to distribute power from a final amplifier stage power supply to a final stage of the amplifier circuit.

    摘要翻译： 用于分配功率和偏置RF PA的方法和设备。 配电网络包括一个最终的放大器级配电网络和一个最终的放大器级配电网络。 预最终放大器级配电网络包括一个或多个预最终放大器级功率分配分支，其可被配置为将功率从一个或多个预最终放大器电源分配到一个或多个预最终放大器级。 每个预最终的放大器级配电支路包括耦合到电感负载的pi C-R-C网络。 最后的放大器级配电网络被配置为将功率从最终放大器级电源分配到放大器电路的最后级。