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    High-linearity complementary amplifier
    3.
    发明授权
    High-linearity complementary amplifier 有权
    高线性互补放大器

    公开(公告)号：US07936217B2

    公开(公告)日：2011-05-03

    申请号：US11947570

    申请日：2007-11-29

    申请人： Junxiong Deng ,  Gurkanwal Singh Sahota ,  Solti Peng

    发明人： Junxiong Deng ,  Gurkanwal Singh Sahota ,  Solti Peng

    IPC分类号： H03F3/18

    CPC分类号： H03F1/3205 ,  H03F1/0261 ,  H03F1/086 ,  H03F1/3211 ,  H03F1/56 ,  H03F3/19 ,  H03F3/3022 ,  H03F3/45179 ,  H03F2200/18 ,  H03F2200/294 ,  H03F2200/354 ,  H03F2200/451

    摘要： A complementary amplifier includes an NMOS transistor coupled to a PMOS transistor in a stacked configuration. The NMOS transistor and the PMOS transistor receive and amplify an input signal. The NMOS and PMOS transistors operate as a linear complementary amplifier and provide an output signal. The NMOS and PMOS transistors may have separate bias voltages, which may be selected to overlap the low-to-high and high-to-low transitions of the transconductances of these transistors. The width and length dimensions of the NMOS and PMOS transistors may be selected to match the change in input capacitance and the change in transconductance of the NMOS transistor in moderate inversion region with the change in input capacitance and the change in transconductance of the PMOS transistor in moderate inversion region. The complementary amplifier may have an approximately constant total input capacitance and an approximately constant total transconductance over a range of voltages.

    摘要翻译： 互补放大器包括以堆叠配置耦合到PMOS晶体管的NMOS晶体管。 NMOS晶体管和PMOS晶体管接收和放大输入信号。 NMOS和PMOS晶体管作为线性互补放大器工作并提供输出信号。 NMOS和PMOS晶体管可以具有单独的偏置电压，其可以被选择为与这些晶体管的跨导的低到高和高到低的跃迁重叠。 可以选择NMOS和PMOS晶体管的宽度和长度尺寸以匹配输入电容的变化和中等反转区中NMOS晶体管的跨导变化，随着输入电容的变化和PMOS晶体管的跨导变化 中等反转区。 互补放大器可以具有近似恒定的总输入电容和在一定范围的电压上的近似恒定的总跨导。

    HIGH-LINEARITY COMPLEMENTARY AMPLIFIER
    4.
    发明申请
    HIGH-LINEARITY COMPLEMENTARY AMPLIFIER 有权
    高线性互补放大器

    公开(公告)号：US20090140812A1

    公开(公告)日：2009-06-04

    申请号：US11947570

    申请日：2007-11-29

    申请人： Junxiong Deng ,  Gurkanwal Singh Sahota ,  Solti Peng

    发明人： Junxiong Deng ,  Gurkanwal Singh Sahota ,  Solti Peng

    IPC分类号： H03F3/16

    CPC分类号： H03F1/3205 ,  H03F1/0261 ,  H03F1/086 ,  H03F1/3211 ,  H03F1/56 ,  H03F3/19 ,  H03F3/3022 ,  H03F3/45179 ,  H03F2200/18 ,  H03F2200/294 ,  H03F2200/354 ,  H03F2200/451

    摘要： A complementary amplifier includes an NMOS transistor coupled to a PMOS transistor in a stacked configuration. The NMOS transistor and the PMOS transistor receive and amplify an input signal. The NMOS and PMOS transistors operate as a linear complementary amplifier and provide an output signal. The NMOS and PMOS transistors may have separate bias voltages, which may be selected to overlap the low-to-high and high-to-low transitions of the transconductances of these transistors. The width and length dimensions of the NMOS and PMOS transistors may be selected to match the change in input capacitance and the change in transconductance of the NMOS transistor in moderate inversion region with the change in input capacitance and the change in transconductance of the PMOS transistor in moderate inversion region. The complementary amplifier may have an approximately constant total input capacitance and an approximately constant total transconductance over a range of voltages.

    摘要翻译： 互补放大器包括以堆叠配置耦合到PMOS晶体管的NMOS晶体管。 NMOS晶体管和PMOS晶体管接收和放大输入信号。 NMOS和PMOS晶体管作为线性互补放大器工作并提供输出信号。 NMOS和PMOS晶体管可以具有单独的偏置电压，其可以被选择为与这些晶体管的跨导的低到高和高到低的跃迁重叠。 可以选择NMOS和PMOS晶体管的宽度和长度尺寸以匹配输入电容的变化和中等反转区中NMOS晶体管的跨导变化，随着输入电容的变化和PMOS晶体管的跨导变化 中等反转区。 互补放大器可以具有近似恒定的总输入电容和在一定范围的电压上的近似恒定的总跨导。

    Dual band radio frequency transmitter
    5.
    发明授权
    Dual band radio frequency transmitter 有权
    双频射频发射机

    公开(公告)号：US08095082B2

    公开(公告)日：2012-01-10

    申请号：US11870365

    申请日：2007-10-10

    申请人： Junxiong Deng ,  Maulin Pareshbhai Bhagat ,  Gurkanwal Singh Sahota

    发明人： Junxiong Deng ,  Maulin Pareshbhai Bhagat ,  Gurkanwal Singh Sahota

    IPC分类号： H04B1/02 ,  H04B1/04 ,  H01Q11/12

    CPC分类号： H04B1/0067 ,  H04B1/0458 ,  H04B1/0483

    摘要： A transmitter includes a transformer and a transformer tuning circuit. The transformer transforms a differential radio frequency (RF) signal to a single-ended RF signal. The transformer tuning circuit tunes the transformer to permit the transmitter to transmit the single-ended RF signal in a first frequency band (e.g., cellular frequency band) or a second frequency band (e.g., PCS frequency band).

    摘要翻译： 变送器包括变压器和变压器调谐电路。 变压器将差分射频（RF）信号转换为单端RF信号。 变压器调谐电路调谐变压器以允许发射机在第一频带（例如，蜂窝频带）或第二频带（例如，PCS频带）中发送单端RF信号。

    DUAL BAND RADIO FREQUENCY TRANSMITTER
    6.
    发明申请
    DUAL BAND RADIO FREQUENCY TRANSMITTER 有权
    双频无线电频率发射机

    公开(公告)号：US20090098831A1

    公开(公告)日：2009-04-16

    申请号：US11870365

    申请日：2007-10-10

    申请人： Junxiong Deng ,  Maulin Pareshbhai Bhagat ,  Gurkanwal Singh Sahota

    发明人： Junxiong Deng ,  Maulin Pareshbhai Bhagat ,  Gurkanwal Singh Sahota

    IPC分类号： H04B1/38

    CPC分类号： H04B1/0067 ,  H04B1/0458 ,  H04B1/0483

    摘要： A transmitter includes a transformer and a transformer tuning circuit. The transformer transforms a differential radio frequency (RF) signal to a single-ended RF signal. The transformer tuning circuit tunes the transformer to permit the transmitter to transmit the single-ended RF signal in a first frequency band (e.g., cellular frequency band) or a second frequency band (e.g., PCS frequency band).

    摘要翻译： 变送器包括变压器和变压器调谐电路。 变压器将差分射频（RF）信号转换为单端RF信号。 变压器调谐电路调谐变压器以允许发射机在第一频带（例如，蜂窝频带）或第二频带（例如，PCS频带）中发送单端RF信号。

    Local oscillator buffer and mixer having adjustable size
    10.
    发明授权
    Local oscillator buffer and mixer having adjustable size 有权
    具有可调大小的本地振荡器缓冲器和混频器

    公开(公告)号：US08019310B2

    公开(公告)日：2011-09-13

    申请号：US11955201

    申请日：2007-12-12

    申请人： Gurkanwal Singh Sahota ,  Frederic Bossu ,  Ojas M. Choksi

    发明人： Gurkanwal Singh Sahota ,  Frederic Bossu ,  Ojas M. Choksi

    IPC分类号： H04B1/26 ,  H04B7/00 ,  H04B15/00

    CPC分类号： H03D7/1441 ,  H03D7/165 ,  H03D7/166 ,  H03D2200/0084 ,  H03D2200/009

    摘要： Selectable sizes for a local oscillator (LO) buffer and mixer are disclosed. In an embodiment, LO buffer and/or mixer size may be increased when a receiver operates in a high gain mode, while LO buffer and/or mixer size may be decreased when the receiver operates in a low gain mode. In an embodiment, LO buffer and mixer sizes are increased and decreased in lock step. Circuit topologies and control schemes for specific embodiments of LO buffers and mixers having adjustable size are disclosed.

    摘要翻译： 公开了本地振荡器（LO）缓冲器和混频器的可选尺寸。 在一个实施例中，当接收机以高增益模式工作时，可以增加LO缓冲器和/或混频器的大小，而当接收器以低增益模式工作时，可以减小LO缓冲器和/或混频器的大小。 在一个实施例中，LO缓冲器和混合器尺寸在锁定步骤中增加和减小。 公开了具有可调节尺寸的LO缓冲器和混合器的具体实施例的电路拓扑和控制方案。