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    ESA phase shifter topology
    3.
    发明授权
    ESA phase shifter topology 有权
    ESA移相器拓扑

    公开(公告)号：US09537558B1

    公开(公告)日：2017-01-03

    申请号：US14663641

    申请日：2015-03-20

    申请人： Russell D. Wyse ,  Michael L. Hageman

    发明人： Russell D. Wyse ,  Michael L. Hageman

    IPC分类号： H01Q3/36 ,  H04B7/06 ,  H04B1/04 ,  H03F3/19 ,  H03G3/00 ,  H01Q1/00 ,  H01Q3/38

    CPC分类号： H04B7/0682 ,  H01Q1/00 ,  H01Q3/26 ,  H01Q3/36 ,  H01Q3/38 ,  H03F3/19 ,  H03F3/24 ,  H03F3/45085 ,  H03F2200/336 ,  H03F2203/45318 ,  H03F2203/45366 ,  H03F2203/45466 ,  H03G1/0023 ,  H03G1/0082 ,  H03G3/00 ,  H04B1/0483 ,  H04B2001/0408

    摘要： A phase shifter component is described. Inputs are arranged to selectively receive an inphase component of an in-phase (I) signal or an outphase I signal 180° out of phase with the inphase I signal, and to selectively receive an inphase component of a quadrature-phase (Q) signal or an outphase Q signal 180° out of phase with the inphase Q signal. A first gain portion includes only two transistor elements arranged to amplify the received outphase or inphase I signal. A second gain portion includes only two transistor elements arranged to amplify the received outphase or inphase Q signal. The first and second gain portions are configured to control the gain of the received outphase or inphase I signal and the received outphase or inphase Q signal, respectively, to provide a composite output signal with a desired phase shift between 0° and 360°.

    摘要翻译： 描述移相器组件。 输入被布置为选择性地接收与同相I信号180°异相的同相（I）信号或异相I信号的同相分量，并且有选择地接收正交相位（Q）信号的同相分量 或与同相Q信号异相180°的异相Q信号。 第一增益部分仅包括布置成放大所接收的异相或同相I信号的两个晶体管元件。 第二增益部分仅包括布置成放大所接收的异相或同相Q信号的两个晶体管元件。 第一和第二增益部分被配置为分别控制所接收的异相或同相I信号和所接收的异相或同相Q信号的增益，以提供具有在0°和360°之间的期望相移的复合输出信号。

    ENHANCED TRANSCONDUCTANCE CIRCUIT
    5.
    发明申请
    ENHANCED TRANSCONDUCTANCE CIRCUIT 审中-公开
    增强型交叉电路

    公开(公告)号：US20140159813A1

    公开(公告)日：2014-06-12

    申请号：US14182799

    申请日：2014-02-18

    申请人： Sandro HERRERA

    发明人： Sandro HERRERA

    IPC分类号： H03F3/45

    CPC分类号： H03F3/45071 ,  H03F1/3211 ,  H03F3/4508 ,  H03F3/45085 ,  H03F2203/45236 ,  H03F2203/45352 ,  H03F2203/45366

    摘要： A transconductance circuit that improves linearity and output current over a wider range of input voltages than prior designs. The transconductance circuit may include first and second sets of paired differential transistors. In each set, emitters of the paired transistors may be commonly coupled to corresponding nodes of a common impedance, and collectors may be coupled to output terminals of the transconductance circuit. The circuit may further include first and second sets of doublet differential transistor pairs, each doublet pair having transistors of different sizes. Each doublet pair may have current sources coupled between commonly coupled emitters and a source potential. Respective collectors for each doublet pair may be coupled to the output terminals of the transconductance circuit. A pair of voltage followers may be provided to replicate corresponding input voltages across corresponding bases of the differential transistor pairs and the doublet transistor pairs.

    摘要翻译： 一种跨导电路，可在比现有设计更宽的输入电压范围内提高线性度和输出电流。 跨导电路可以包括第一组和第二组成对的差分晶体管。 在每组中，成对晶体管的发射极可以共同耦合到公共阻抗的对应节点，并且集电极可以耦合到跨导电路的输出端子。 电路还可以包括第一组和第二组双差分晶体管对，每个双对具有不同尺寸的晶体管。 每个双引线对可以具有耦合在共同耦合的发射极和源电位之间的电流源。 每个双绞线对的各个集电极可以耦合到跨导电路的输出端子。 可以提供一对电压跟随器来复制跨越差分晶体管对和双晶体管对的相应基极的对应输入电压。

    Rail-to rail input circuit
    6.
    发明授权
    Rail-to rail input circuit 有权
    轨到轨输入电路

    公开(公告)号：US08680922B2

    公开(公告)日：2014-03-25

    申请号：US13352654

    申请日：2012-01-18

    申请人： Quan Wan

    发明人： Quan Wan

    IPC分类号： H03F3/45

    CPC分类号： H03F3/45183 ,  H03F1/0205 ,  H03F3/45188 ,  H03F3/45192 ,  H03F3/45237 ,  H03F3/45708 ,  H03F2200/513 ,  H03F2203/45242 ,  H03F2203/45246 ,  H03F2203/45366 ,  H03F2203/45686 ,  H03K5/2445 ,  H03K5/2481

    摘要： A power-efficient, rail-to-rail input circuit includes two differential pairs, one having devices of a first threshold voltage and one having devices of a second, different threshold voltage. In various embodiments, the two differential pairs receive a differential input in parallel and are supplied a tail current, which a control circuit steers between the pairs in accordance with a common-mode level of the input.

    摘要翻译： 功率高效的轨至轨输入电路包括两个差分对，一个具有第一阈值电压的器件，另一个具有第二不同阈值电压的器件。 在各种实施例中，两个差分对并行地接收差分输入并且被提供尾电流，控制电路根据输入的共模电平在对之间转向。

    Dual Carrier Amplifier Circuits And Methods
    8.
    发明申请
    Dual Carrier Amplifier Circuits And Methods 审中-公开
    双载波放大器电路和方法

    公开(公告)号：US20130293303A1

    公开(公告)日：2013-11-07

    申请号：US13936400

    申请日：2013-07-08

    申请人： Marvell World Trade Ltd.

    发明人： Gregory UEHARA ,  Xiaohua Fan

    IPC分类号： H03H11/04

    CPC分类号： H03H11/0461 ,  H03F1/223 ,  H03F3/45076 ,  H03F3/72 ,  H03F2200/222 ,  H03F2200/294 ,  H03F2200/414 ,  H03F2200/429 ,  H03F2200/451 ,  H03F2203/45352 ,  H03F2203/45366 ,  H03F2203/45394 ,  H03F2203/45464 ,  H03F2203/7209 ,  H03F2203/7236

    摘要： A circuit includes first and second transconductance stages that generate first and second currents, respectively, in response to an input signal. A current combiner circuit selectively couples the first current to a first output, selectively couples the second current to the first output, selectively couples the first current to a second output, and selectively couples the second current to the second output. In response to the first current being coupled to both the first and second outputs, the current combiner circuit couples the second current to both the first and second outputs. In response to the first current being decoupled from the second output, the current combiner circuit decouples the second current from both the first and second outputs. In response to the first current being decoupled from the first output, the current combiner circuit decouples the second current from both the first and second outputs.

    摘要翻译： 电路包括分别响应于输入信号产生第一和第二电流的第一和第二跨导级。 当前组合器电路选择性地将第一电流耦合到第一输出，选择性地将第二电流耦合到第一输出，选择性地将第一电流耦合到第二输出，并且选择性地将第二电流耦合到第二输出。 响应于第一电流耦合到第一和第二输出，当前组合器电路将第二电流耦合到第一和第二输出。 响应于第一电流与第二输出端分离，当前组合器电路使第二电流与第一和第二输出端分离。 响应于第一电流与第一输出端分离，当前组合器电路使第二电流与第一和第二输出端分离。

    Amplifier common-mode control methods
    9.
    发明授权
    Amplifier common-mode control methods 有权
    放大器共模控制方式

    公开(公告)号：US08552801B2

    公开(公告)日：2013-10-08

    申请号：US12930757

    申请日：2011-01-14

    申请人： Andrew Myles

    发明人： Andrew Myles

    IPC分类号： H03F3/45

    CPC分类号： H03F3/45932 ,  H03F1/0205 ,  H03F3/45183 ,  H03F3/45475 ,  H03F3/45654 ,  H03F3/45704 ,  H03F3/45717 ,  H03F3/45959 ,  H03F3/45964 ,  H03F2200/453 ,  H03F2200/456 ,  H03F2203/45074 ,  H03F2203/45078 ,  H03F2203/45134 ,  H03F2203/45354 ,  H03F2203/45366 ,  H03F2203/45406 ,  H03F2203/45408 ,  H03F2203/45528 ,  H03F2203/45588 ,  H03F2203/45642

    摘要： Systems and methods for providing a fully differential amplifier performing common-mode voltage control having reduced area and power requirements are disclosed. The amplifier disclosed comprises an additional input stage at the amplifier input which senses the common mode voltage of the amplifier's inputs and applies internal feedback control to adjust the output common-mode voltage until the input common-mode voltage matches a target voltage and thereby indirectly set the output common-mode voltage. Furthermore the internal common-mode control can be implemented in such a manner as to provide a feed-forward transconductance function in addition to common-mode control if desired. Moreover it is possible to use feedback from other amplifier stages in an amplifier chain to implement common-mode feedback.

    摘要翻译： 公开了提供具有减小面积和功率要求的共模电压控制的全差分放大器的系统和方法。 所公开的放大器包括在放大器输入处的附加输入级，其感测放大器输入的共模电压，并且施加内部反馈控制以调整输出共模电压，直到输入共模电压与目标电压相匹配，从而间接设置 输出共模电压。 此外，如果需要，可以以除了共模控制之外提供前馈跨导功能的方式来实现内部共模控制。 此外，可以使用放大器链中其他放大器级的反馈来实现共模反馈。

    Radio transmitter
    10.
    发明授权
    Radio transmitter 有权
    无线电发射机

    公开(公告)号：US08320845B2

    公开(公告)日：2012-11-27

    申请号：US12168357

    申请日：2008-07-07

    申请人： Robert Bristow

    发明人： Robert Bristow

    IPC分类号： H04B1/04 ,  H01Q11/12

    CPC分类号： H03F1/02 ,  H03F1/26 ,  H03F3/24 ,  H03F3/45085 ,  H03F2200/372 ,  H03F2200/451 ,  H03F2203/45366 ,  H04B1/0475 ,  H04B2001/0491

    摘要： A radio transmitter includes a transmitter circuit which produces a signal at a first frequency, and has digital divider circuitry, for dividing the first frequency to produce a signal at a second frequency. The noise performance of the digital divider is adjusted, depending upon the transmitter output power. Specifically, the digital divider is operated with a relatively good noise performance when the gain of the power amplifier is high, and is operated with a worse noise performance at low output powers. This can ensure that a specified noise requirement is met, without excessively increasing the power consumption or the size of the device.

    摘要翻译： 无线电发射机包括发射电路，其以第一频率产生信号，并具有数字分频器电路，用于分割第一频率以产生第二频率的信号。 数字分频器的噪声性能根据发射机输出功率进行调整。 具体来说，当功率放大器的增益高时，数字分频器的噪声性能相对较好，在低输出功率下以较差的噪声性能运行。 这可以确保满足特定的噪声要求，而不会过度增加功耗或设备的尺寸。