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    Low noise amplifier circuit
    3.
    发明授权
    Low noise amplifier circuit 有权
    低噪声放大器电路

    公开(公告)号：US08217723B2

    公开(公告)日：2012-07-10

    申请号：US12612691

    申请日：2009-11-05

    Applicant: Gireesh Rajendran ,  Ashish Lachhwani ,  Rakesh Kumar

    Inventor： Gireesh Rajendran ,  Ashish Lachhwani ,  Rakesh Kumar

    IPC: H03F1/22

    CPC classification number: H03G1/007 ,  H03F1/223 ,  H03F3/191 ,  H03F2200/294

    Abstract: Low noise amplifier circuit. The low noise amplifier circuit includes an amplifier that amplifies an input to provide an output. The amplifier is coupled to an input terminal. The circuit also includes a device in a cascode connection with the amplifier. The circuit further includes a tuning circuit coupled to the device to phase shift the output. Further, the circuit includes a feedback circuit that is responsive to a phase-shifted output to enhance gain of the amplifier. The feedback circuit is coupled to the tuning circuit and the amplifier.

    Abstract translation: 低噪声放大器电路。 低噪声放大器电路包括放大输入以提供输出的放大器。 放大器耦合到输入端。 该电路还包括与放大器的共源共栅连接的装置。 该电路还包括耦合到该器件以相移输出的调谐电路。 此外，电路包括响应于相移输出以增强放大器增益的反馈电路。 反馈电路耦合到调谐电路和放大器。

    Receiver front end
    4.
    发明授权
    Receiver front end 有权
    接收机前端

    公开(公告)号：US08301105B2

    公开(公告)日：2012-10-30

    申请号：US12540368

    申请日：2009-08-13

    Applicant: Gireesh Rajendran ,  Ashish Lachhwani ,  Rittu Kulwant Sachdev ,  Rakesh Kumar

    Inventor： Gireesh Rajendran ,  Ashish Lachhwani ,  Rittu Kulwant Sachdev ,  Rakesh Kumar

    IPC: H04B1/28

    CPC classification number: H04B1/18

    Abstract: A low-power receiver front-end includes a transconductance amplifier that produces a single-ended current signal in response to a single-ended voltage signal. An output of the transconductance amplifier is provided to an LC tuned circuit. At resonance, the LC tuned circuit generates a differential current signal in response to the single-ended current signal. Single-ended current signals corresponding to the resonant frequency of the LC tuned circuit are converted into differential signals. Further, the LC tuned circuit amplifies the differential current signals by an associated quality factor. Further, a mixer is coupled to an output of the LC tuned circuit. The mixer generates IF signals in response to the differential current signals.

    Abstract translation: 低功率接收器前端包括跨导放大器，其响应于单端电压信号产生单端电流信号。 跨导放大器的输出提供给LC调谐电路。 在谐振时，LC调谐电路响应于单端电流信号产生差分电流信号。 对应于LC调谐电路的谐振频率的单端电流信号被转换为差分信号。 此外，LC调谐电路通过相关联的质量因子放大差分电流信号。 此外，混频器耦合到LC调谐电路的输出端。 混频器响应于差分电流信号产生IF信号。

    Amplifier with improved input resistance and controlled common mode
    5.
    发明授权
    Amplifier with improved input resistance and controlled common mode 有权
    具有改进的输入电阻和受控共模的放大器

    公开(公告)号：US08049562B2

    公开(公告)日：2011-11-01

    申请号：US12683431

    申请日：2010-01-07

    Applicant: Rakesh Kumar ,  Gireesh Rajendran ,  Rittu Sachdev Singh

    Inventor： Rakesh Kumar ,  Gireesh Rajendran ,  Rittu Sachdev Singh

    IPC: H03F3/45

    CPC classification number: H03F3/45179 ,  H03F3/45475 ,  H03F3/45632 ,  H03F3/45928 ,  H03F2200/168 ,  H03F2200/411 ,  H03F2203/45512

    Abstract: An amplifier includes a first pair of transistors (the first pair) that defines a first output, each transistor of the first pair having a gate coupled to a first input terminal; a second pair of transistors (the second pair) that defines a second output, each transistor of the second pair having a gate coupled to a second input terminal; a first capacitor coupled to the second output terminal and to the gate of a first transistor of the first pair; a second capacitor coupled to the second output terminal and to the gate of a second transistor of the first pair; a third capacitor coupled to the first output terminal and to the gate of a third transistor of the second pair; and a fourth capacitor coupled to the first output terminal and to the gate of a fourth transistor of the second pair.

    Abstract translation: 放大器包括限定第一输出的第一对晶体管（第一对），第一对的每个晶体管具有耦合到第一输入端的栅极; 限定第二输出的第二对晶体管（第二对），第二对的每个晶体管具有耦合到第二输入端的栅极; 第一电容器，耦合到所述第二输出端子和所述第一对的第一晶体管的栅极; 耦合到所述第二输出端子和所述第一对的第二晶体管的栅极的第二电容器; 耦合到所述第一输出端子和所述第二对的第三晶体管的栅极的第三电容器; 以及耦合到所述第一输出端子和所述第二对的第四晶体管的栅极的第四电容器。

    AMPLIFIER WITH IMPROVED INPUT RESISTANCE AND CONTROLLED COMMON MODE
    6.
    发明申请
    AMPLIFIER WITH IMPROVED INPUT RESISTANCE AND CONTROLLED COMMON MODE 有权
    具有改进的输入电阻和控制通用模式的放大器

    公开(公告)号：US20110163808A1

    公开(公告)日：2011-07-07

    申请号：US12683431

    申请日：2010-01-07

    Applicant: Rakesh Kumar ,  Gireesh Rajendran ,  Rittu Sachdev Singh

    Inventor： Rakesh Kumar ,  Gireesh Rajendran ,  Rittu Sachdev Singh

    IPC: H03F3/45 ,  H03F3/04

    CPC classification number: H03F3/45179 ,  H03F3/45475 ,  H03F3/45632 ,  H03F3/45928 ,  H03F2200/168 ,  H03F2200/411 ,  H03F2203/45512

    Abstract: An amplifier includes a first pair of transistors (the first pair) that defines a first output, each transistor of the first pair having a gate coupled to a first input terminal; a second pair of transistors (the second pair) that defines a second output, each transistor of the second pair having a gate coupled to a second input terminal; a first capacitor coupled to the second output terminal and to the gate of a first transistor of the first pair; a second capacitor coupled to the second output terminal and to the gate of a second transistor of the first pair; a third capacitor coupled to the first output terminal and to the gate of a third transistor of the second pair; and a fourth capacitor coupled to the first output terminal and to the gate of a fourth transistor of the second pair.

    Abstract translation: 放大器包括限定第一输出的第一对晶体管（第一对），第一对的每个晶体管具有耦合到第一输入端的栅极; 限定第二输出的第二对晶体管（第二对），第二对的每个晶体管具有耦合到第二输入端的栅极; 第一电容器，耦合到所述第二输出端子和所述第一对的第一晶体管的栅极; 耦合到所述第二输出端子和所述第一对的第二晶体管的栅极的第二电容器; 耦合到所述第一输出端子和所述第二对的第三晶体管的栅极的第三电容器; 以及耦合到所述第一输出端子和所述第二对的第四晶体管的栅极的第四电容器。

    RECEIVER FRONT END
    8.
    发明申请
    RECEIVER FRONT END 有权
    接收器前端

    公开(公告)号：US20110039511A1

    公开(公告)日：2011-02-17

    申请号：US12540368

    申请日：2009-08-13

    Applicant: Gireesh Rajendran ,  Ashish Lachwani ,  Rittu Kulwant Sachdev ,  Rakesh Kumar

    Inventor： Gireesh Rajendran ,  Ashish Lachwani ,  Rittu Kulwant Sachdev ,  Rakesh Kumar

    IPC: H04B1/26

    CPC classification number: H04B1/18

    Abstract: A low-power receiver front-end includes a transconductance amplifier that produces a single-ended current signal in response to a single-ended voltage signal. An output of the transconductance amplifier is provided to an LC tuned circuit. At resonance, the LC tuned circuit generates a differential current signal in response to the single-ended current signal. Single-ended current signals corresponding to the resonant frequency of the LC tuned circuit are converted into differential signals. Further, the LC tuned circuit amplifies the differential current signals by an associated quality factor. Further, a mixer is coupled to an output of the LC tuned circuit. The mixer generates IF signals in response to the differential current signals.

    Abstract translation: 低功率接收器前端包括跨导放大器，其响应于单端电压信号产生单端电流信号。 跨导放大器的输出被提供给LC调谐电路。 在谐振时，LC调谐电路响应于单端电流信号产生差分电流信号。 对应于LC调谐电路的谐振频率的单端电流信号被转换为差分信号。 此外，LC调谐电路通过相关联的质量因子放大差分电流信号。 此外，混频器耦合到LC调谐电路的输出端。 混频器响应于差分电流信号产生IF信号。

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