System and method for adaptive linearization of RF amplifiers
    2.
    发明授权
    System and method for adaptive linearization of RF amplifiers 有权
    射频放大器自适应线性化的系统和方法

    公开(公告)号:US09252715B2

    公开(公告)日:2016-02-02

    申请号:US14211068

    申请日:2014-03-14

    摘要: A variable-bias power amplifier is provided, comprising: a first variable voltage source generating first bias voltages based on bias control signals; a first amplifier circuit amplifying an output RF signal to generate a first amplified signal based on the first bias voltages; a second variable voltage source generating second bias voltages based on the bias control signals; a second amplifier circuit amplifying the output RF signal to generate a second amplified signal based on the second bias voltages; and a DC isolation circuit between the first amplifier circuit and the second amplifier circuit, electrically isolating DC currents at the first amplifier from DC currents at the second amplifier, wherein the first variable voltage source can be controlled independently from the second variable voltage source, and the first amplifier circuit, the second amplifier circuit, and the DC isolation circuit are all formed on a single die.

    摘要翻译: 提供了一种可变偏置功率放大器,包括:第一可变电压源,其基于偏置控制信号产生第一偏置电压; 第一放大器电路,放大输出RF信号,以产生基于第一偏置电压的第一放大信号; 第二可变电压源,基于偏置控制信号产生第二偏置电压; 放大所述输出RF信号以产生基于所述第二偏置电压的第二放大信号的第二放大器电路; 以及在所述第一放大器电路和所述第二放大器电路之间的DC隔离电路,将所述第一放大器处的DC电流与所述第二放大器处的DC电流电隔离,其中所述第一可变电压源可独立于所述第二可变电压源而被控制,以及 第一放大器电路,第二放大器电路和DC隔离电路都形成在单个管芯上。

    RF power transistor circuit
    4.
    发明授权
    RF power transistor circuit 有权
    RF功率晶体管电路

    公开(公告)号:US08659359B2

    公开(公告)日:2014-02-25

    申请号:US12746793

    申请日:2010-04-22

    IPC分类号: H03F3/04

    摘要: A radio frequency (RF) power transistor circuit includes a power transistor and a decoupling circuit. The power transistor has a control electrode coupled to an input terminal for receiving an RF input signal, a first current electrode for providing an RF output signal at an output terminal, and a second current electrode coupled to a power supply voltage terminal. The decoupling circuit includes a first inductive element, a first resistor, and a first capacitor coupled together in series between the control electrode of the first power transistor and the power supply voltage terminal. The first decoupling circuit is for dampening a resonance at a frequency lower than an RF frequency.

    摘要翻译: 射频(RF)功率晶体管电路包括功率晶体管和去耦电路。 功率晶体管具有耦合到用于接收RF输入信号的输入端子的控制电极,用于在输出端子处提供RF输出信号的第一电流电极和耦合到电源电压端子的第二电流电极。 去耦电路包括串联耦合在第一功率晶体管的控制电极和电源电压端之间的第一电感元件,第一电阻器和第一电容器。 第一个去耦电路用于衰减低于RF频率的频率的谐振。

    RF POWER TRANSISTOR CIRCUIT
    5.
    发明申请
    RF POWER TRANSISTOR CIRCUIT 有权
    射频功率晶体管电路

    公开(公告)号:US20130033325A1

    公开(公告)日:2013-02-07

    申请号:US12746793

    申请日:2010-04-22

    IPC分类号: H03F3/16

    摘要: A radio frequency (RF) power transistor circuit includes a power transistor and a decoupling circuit. The power transistor has a control electrode coupled to an input terminal for receiving an RF input signal, a first current electrode for providing an RF output signal at an output terminal, and a second current electrode coupled to a power supply voltage terminal. The decoupling circuit includes a first inductive element, a first resistor, and a first capacitor coupled together in series between the control electrode of the first power transistor and the power supply voltage terminal. The first decoupling circuit is for dampening a resonance at a frequency lower than an RF frequency.

    摘要翻译: 射频(RF)功率晶体管电路包括功率晶体管和去耦电路。 功率晶体管具有耦合到用于接收RF输入信号的输入端子的控制电极,用于在输出端子处提供RF输出信号的第一电流电极和耦合到电源电压端子的第二电流电极。 去耦电路包括串联耦合在第一功率晶体管的控制电极和电源电压端之间的第一电感元件,第一电阻器和第一电容器。 第一个去耦电路用于衰减低于RF频率的频率的谐振。

    Aquacycle
    9.
    发明授权
    Aquacycle 失效
    水族馆

    公开(公告)号:US4789365A

    公开(公告)日:1988-12-06

    申请号:US040036

    申请日:1987-04-20

    申请人: Jeffrey K. Jones

    发明人: Jeffrey K. Jones

    IPC分类号: B60F3/00

    CPC分类号: B60F3/0084

    摘要: Apparatus for converting a bicycle to a maneuverable, pedal-operable aquacycle is disclosed. A twin hull assembly includes a support framework for supporting a bicycle by its horizontal frame member. A friction wheel, which may be rotated with the rear wheel of the bicycle by pedal action, turns symmetrically spaced apart, oppositely pitched, twin propellers via dual flexible axles that extend laterally and rearwardly from the friction wheel. An in-line dual rudder control system is provided that, responsive to the turning of the handlebars, efficiently turns the aquacycle in a direction corresponding to the direction a bicycle would turn. Except for conversion hardware consisting of two U-bolts and four nuts, the apparatus is of lightweight, polymeric materials.

    摘要翻译: 公开了一种用于将自行车转换成可操纵的踏板可操作的水循环的装置。 双壳体组件包括用于通过其水平框架构件支撑自行车的支撑框架。 可以通过踏板动作与自行车的后轮一起旋转的摩擦轮通过从摩擦轮横向和向后延伸的双重柔性轴而对称地间隔开,相对地倾斜的双螺旋桨。 提供了一种在线双舵控制系统,其响应于车把的转动,有效地沿与自行车转向方向相反的方向转动水车。 除了由两个U型螺栓和四个螺母组成的转换硬件之外,该设备是重量轻的聚合材料。

    Configurable power amplifier and related construction method
    10.
    发明授权
    Configurable power amplifier and related construction method 有权
    配置功率放大器及相关施工方法

    公开(公告)号:US09225300B2

    公开(公告)日:2015-12-29

    申请号:US14265849

    申请日:2014-04-30

    摘要: A multiple-path, configurable, radio-frequency (RF) circuit is provided, including: a first amplifier path amplify a first RF signal to generate a first amplified signal; a second amplifier path configured to amplify a second RF signal to generate a second amplified signal; a corrective input matching circuit, configured to change first input-impedance-matching properties of the first amplifier path, and to change second input-impedance-matching properties of the second amplifier path; a first isolation element configured to selectively ground an input node of the second amplifier path; a second isolation element configured to selectively ground an output node of the second amplifier path; and a third isolation element connected between the first and second amplifier paths, configured to selectively isolate the corrective input matching circuit from first and second input nodes of the first and second amplifier paths, respectively, or connect the corrective input matching circuit to the first and second input nodes.

    摘要翻译: 提供多路径,可配置的射频(RF)电路,包括:第一放大器路径放大第一RF信号以产生第一放大信号; 第二放大器路径,被配置为放大第二RF信号以产生第二放大信号; 校正输入匹配电路,被配置为改变第一放大器路径的第一输入阻抗匹配特性,并改变第二放大器路径的第二输入阻抗匹配特性; 第一隔离元件,被配置为选择性地接地第二放大器路径的输入节点; 第二隔离元件,被配置为选择性地接地所述第二放大器路径的输出节点; 以及连接在第一和第二放大器路径之间的第三隔离元件,被配置为分别将校正输入匹配电路与第一和第二放大器路径的第一和第二输入节点分离,或将校正输入匹配电路连接到第一和第二放大器路径 第二输入节点。