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    Waveform-Tailored Average Power Tracking
    12.
    发明申请
    Waveform-Tailored Average Power Tracking 有权

    公开(公告)号：US20220200535A1

    公开(公告)日：2022-06-23

    申请号：US17129384

    申请日：2020-12-21

    Applicant: Qualcomm Incorporated

    Inventor： Xiangdong Zhang ,  Ryan Scott Castro Spring ,  Marco Cassia ,  Yan Kit Gary Hau ,  Kanan Gandhi ,  Robert Wilson

    IPC: H03F1/02 ,  H03F3/195

    Abstract: An apparatus is disclosed for waveform-tailored average power tracking. In an example aspect, the apparatus includes an amplifier, a power converter, and an average power tracking module. The amplifier is configured to amplify radio-frequency signals using a supply voltage. The radio-frequency signals have different waveforms. The power converter is coupled to the amplifier and configured to provide the supply voltage. The average power tracking module is coupled to the power converter and configured to adjust the supply voltage according to the different waveforms to cause the supply voltage to vary across at least two waveforms of the different waveforms for related average output powers.

    Step attenuator with constant input capacitance
    13.
    发明授权
    Step attenuator with constant input capacitance 有权

    公开(公告)号：US09985601B2

    公开(公告)日：2018-05-29

    申请号：US13826265

    申请日：2013-03-14

    Applicant: QUALCOMM Incorporated

    Inventor： Xinwei Wang ,  Xiangdong Zhang ,  Marc Gerald Dicicco

    IPC: H01P1/22 ,  H03H7/25

    CPC classification number: H03H7/25 ,  H01P1/22

    Abstract: A step attenuator with constant input capacitance and having good performance is disclosed. In an exemplary design, an apparatus includes a step attenuator having a constant input capacitance for different amounts of attenuation. The step attenuator receives an input signal, provides a variable amount of attenuation for the input signal, and provides an output signal. The step attenuator may include a plurality of attenuator sections coupled in series. Each attenuator section may include a plurality of capacitors and may have the constant input capacitance. At least one of the plurality of attenuator sections may be selected or unselected to obtain a selected amount of attenuation for the step attenuator. An attenuator section may provide a predetermined amount of attenuation or a variable amount of attenuation when selected. The apparatus may further include a power detector that receives and determines the power of the output signal from the step attenuator.

    VARYING THICKNESS INDUCTOR
    16.
    发明申请
    VARYING THICKNESS INDUCTOR 审中-公开
    变化厚度电感器

    公开(公告)号：US20160358709A1

    公开(公告)日：2016-12-08

    申请号：US15242007

    申请日：2016-08-19

    Applicant: QUALCOMM Incorporated

    Inventor： Daeik Daniel Kim ,  Chengjie Zuo ,  Changhan Hobie Yun ,  Mario Francisco Velez ,  Robert Paul Mikulka ,  Xiangdong Zhang ,  Jonghae Kim ,  Je-Hsiung Lan

    IPC: H01F41/04 ,  H01F27/28

    CPC classification number: H01F41/041 ,  H01F17/0013 ,  H01F27/2804 ,  H01F41/042 ,  H01F2017/0053 ,  H01F2017/0073 ,  H01F2027/2809

    Abstract: A method includes forming a first conductive spiral and a second conductive spiral of a spiral inductor coupled to a substrate. The second conductive spiral overlays the first conductive spiral. A first portion of an innermost turn of the spiral inductor has a first thickness in a direction perpendicular to the substrate. The first portion of the innermost turn includes a first portion of the first conductive spiral and does not include the second conductive spiral. A second portion of the innermost turn includes a first portion of the second conductive spiral. A portion of an outermost turn of the spiral inductor has a second thickness in the direction perpendicular to the substrate. The second thickness is greater than the first thickness. The portion of the outermost turn includes a second portion of the first conductive spiral and a second portion of the second conductive spiral.

    Abstract translation: 一种方法包括形成耦合到衬底的螺旋电感器的第一导电螺旋和第二导电螺旋。 第二导电螺旋覆盖第一导电螺旋。 螺旋电感器的最内圈的第一部分在垂直于衬底的方向上具有第一厚度。 最内圈的第一部分包括第一导电螺旋的第一部分，并且不包括第二导电螺旋。 最内圈的第二部分包括第二导电螺旋的第一部分。 螺旋电感器的最外圈的一部分在垂直于衬底的方向上具有第二厚度。 第二厚度大于第一厚度。 最外圈的部分包括第一导电螺旋的第二部分和第二导电螺旋的第二部分。

    Analog switch for RF front end
    18.
    发明授权
    Analog switch for RF front end 有权
    RF前端模拟开关

    公开(公告)号：US09128502B2

    公开(公告)日：2015-09-08

    申请号：US13961852

    申请日：2013-08-07

    Applicant: QUALCOMM Incorporated

    Inventor： James Francis Imbornone ,  Xinwei Wang ,  Zhenying Luo ,  Xiangdong Zhang

    IPC: H03K17/687 ,  G05F1/46 ,  H03K17/06

    CPC classification number: G05F1/461 ,  H03K17/063 ,  H03K2017/066 ,  H03K2217/0018 ,  H03K2217/0054

    Abstract: Techniques for improving the linearity of radio-frequency (RF) front-end switches. In an aspect, open-loop techniques are disclosed for superimposing the output voltage of one or more negative rectifiers on a negative substrate bias voltage to reduce the non-linearities associated with voltage-dependent substrate leakage current. In another aspect, closed-loop techniques are further disclosed for maintaining the substrate bias voltage close to a reference voltage. Exemplary embodiments of the circuit blocks are further described.

    Abstract translation: 提高射频（RF）前端交换机线性度的技术。 在一方面，公开了开环技术，用于将一个或多个负整流器的输出电压叠加在负的衬底偏置电压上，以减少与依赖于电压的衬底漏电流相关的非线性。 在另一方面，进一步公开了闭环技术以保持衬底偏置电压接近参考电压。 进一步描述电路块的示例性实施例。

    QUADRATURE CURRENT-COMBINING LINEARIZING CIRCUIT FOR GENERATING ARBITRARY PHASE AND AMPLITUDE
    19.
    发明申请
    QUADRATURE CURRENT-COMBINING LINEARIZING CIRCUIT FOR GENERATING ARBITRARY PHASE AND AMPLITUDE 有权
    用于产生相位和幅度的三角形电流组合线性化电路

    公开(公告)号：US20150222319A1

    公开(公告)日：2015-08-06

    申请号：US14173085

    申请日：2014-02-05

    Applicant: QUALCOMM Incorporated

    Inventor： James Francis Imbornone ,  Xinwei Wang ,  Marc Gerald Dicicco ,  Frederic Carrez ,  Zhenying Luo ,  Xiangdong Zhang

    IPC: H04B1/48

    CPC classification number: H04B1/48 ,  H04B1/0057 ,  H04B1/0475 ,  H04B2001/485

    Abstract: A device includes a first circuit path coupled to a first node and a second node, the first circuit path having at least one first varactor circuit configured to receive a first tuning voltage, the first circuit path having a resistor with a selectable value, and a second circuit path coupled to the first node and the second node, the second circuit path having at least one second varactor circuit configured to receive a second tuning voltage, the second circuit path having a capacitor with a selectable value.

    Abstract translation: 一种设备包括耦合到第一节点和第二节点的第一电路路径，第一电路路径具有被配置为接收第一调谐电压的至少一个第一变容二极管电路，第一电路路径具有可选择值的电阻器，以及 第二电路路径，其耦合到第一节点和第二节点，第二电路路径具有被配置为接收第二调谐电压的至少一个第二变容二极管电路，第二电路路径具有具有可选择值的电容器。

    ANALOG SWITCH FOR RF FRONT END
    20.
    发明申请
    ANALOG SWITCH FOR RF FRONT END 有权
    射频前端模拟开关

    公开(公告)号：US20150042399A1

    公开(公告)日：2015-02-12

    申请号：US13961852

    申请日：2013-08-07

    Applicant: QUALCOMM Incorporated

    Inventor： James Francis Imbornone ,  Xinwei Wang ,  Zhenying Luo ,  Xiangdong Zhang

    IPC: G05F1/46

    CPC classification number: G05F1/461 ,  H03K17/063 ,  H03K2017/066 ,  H03K2217/0018 ,  H03K2217/0054

    Abstract: Techniques for improving the linearity of radio-frequency (RF) front-end switches. In an aspect, open-loop techniques are disclosed for superimposing the output voltage of one or more negative rectifiers on a negative substrate bias voltage to reduce the non-linearities associated with voltage-dependent substrate leakage current. In another aspect, closed-loop techniques are further disclosed for maintaining the substrate bias voltage close to a reference voltage. Exemplary embodiments of the circuit blocks are further described.

    Abstract translation: 提高射频（RF）前端交换机线性度的技术。 在一方面，公开了开环技术，用于将一个或多个负整流器的输出电压叠加在负的衬底偏置电压上，以减少与依赖于电压的衬底漏电流相关的非线性。 在另一方面，进一步公开了闭环技术以保持衬底偏置电压接近参考电压。 进一步描述电路块的示例性实施例。

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