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18 条记录 (耗时 0.015 秒)

    Doherty Amplifier with Adjustable Alpha Factor
    1.
    发明申请
    Doherty Amplifier with Adjustable Alpha Factor 有权

    公开(公告)号：US20220158592A1

    公开(公告)日：2022-05-19

    申请号：US17532778

    申请日：2021-11-22

    申请人： pSemi Corporation

    发明人： Michael P. Gaynor

    IPC分类号： H03F1/02 ,  H03F3/21

    摘要： A Doherty amplifier circuit having a tunable impedance and phase (“TIP”) circuit to provide an adjustable alpha factor, which allows for a selection of power added efficiency (PAE) curves that are useful for applications having different modulations or to meet other criteria. Embodiments include a Doherty amplifier having a TIP circuit that provides for tunability of the impedance ZINV (resulting in an adjustable alpha factor) while maintaining the phase of the output of the carrier amplifier at 90° (for a selected polarity) ±a low phase variation. Embodiments of the TIP circuit include one or more series-connected TIP cells comprising at least one TIP circuit combined with a tunable phase adjustment circuit. In operation, when the impedance of a TIP cell is adjusted, adjustments within the cell are also made to provide a phase shift correction back towards 90° (at the selected polarity).

    Interdigitated RF filter
    3.
    发明授权
    Interdigitated RF filter 有权

    公开(公告)号：US11316491B2

    公开(公告)日：2022-04-26

    申请号：US16863083

    申请日：2020-04-30

    申请人： pSemi Corporation

    发明人： Michael P. Gaynor

    IPC分类号： H03H7/01 ,  H03H9/02

    摘要： An interdigitated RF filter. The interdigitated RF filter includes input fingers connected to an input node and output fingers connected to an output node where at least one input finger is connected the output node or at least one output finger is connected to the input node. The described interdigitated RF filter can be implemented in various configurations such as series, shunt, ladder or a combination thereof.

    Doherty Amplifier with Adjustable Alpha Factor
    4.
    发明申请
    Doherty Amplifier with Adjustable Alpha Factor 审中-公开

    公开(公告)号：US20190280651A1

    公开(公告)日：2019-09-12

    申请号：US15918978

    申请日：2018-03-12

    申请人： pSemi Corporation

    发明人： Michael P. Gaynor

    IPC分类号： H03F1/02 ,  H03F3/21

    摘要： A Doherty amplifier circuit having a tunable impedance and phase (“TIP”) circuit to provide an adjustable alpha factor, which allows for a selection of power added efficiency (PAE) curves that are useful for applications having different modulations or to meet other criteria. Embodiments include a Doherty amplifier having a TIP circuit that provides for tunability of the impedance ZINV (resulting in an adjustable alpha factor) while maintaining the phase of the output of the carrier amplifier at 90° (for a selected polarity)±a low phase variation. Embodiments of the TIP circuit include one or more series-connected TIP cells comprising at least one TIP circuit combined with a tunable phase adjustment circuit. In operation, when the impedance of a TIP cell is adjusted, adjustments within the cell are also made to provide a phase shift correction back towards 90° (at the selected polarity).

    RF switch with improved isolation at target frequencies
    7.
    发明授权
    RF switch with improved isolation at target frequencies 有权

    公开(公告)号：US11736102B1

    公开(公告)日：2023-08-22

    申请号：US17577610

    申请日：2022-01-18

    申请人： pSemi Corporation

    发明人： Michael P. Gaynor

    IPC分类号： H03K17/00 ,  H03K17/16 ,  H03K17/687

    CPC分类号： H03K17/161 ,  H03K17/687

    摘要： A compact RF switch with improved isolation is presented. According to one aspect, the RF switch includes a basic single-pole single-throw (SPST) switch element that includes an inductor in parallel with a series FET transistor. An inductance of the inductor is selected to provide in combination with an off capacitance of the series FET transistor a resonance at a specific frequency of interest. The frequency of interest can be in-band or out-of-band, including the band's fundamental frequency or a harmonic thereof. According to another aspect, the inductor is conditionally coupled to the series FET transistor via a reduced size FET transistor. Complex RF switches can include a plurality of the SPST switch elements, each tuned to a same or different frequency of interest. According to yet another aspect, SPST switch elements in their OFF states can provide matching to an SPST element in the ON state.

    Doherty amplifier with adjustable alpha factor
    8.
    发明授权
    Doherty amplifier with adjustable alpha factor 有权

    公开(公告)号：US11190144B2

    公开(公告)日：2021-11-30

    申请号：US16682842

    申请日：2019-11-13

    申请人： pSemi Corporation

    发明人： Michael P. Gaynor

    IPC分类号： H03F3/68 ,  H03F1/02 ,  H03F3/21

    摘要： A Doherty amplifier circuit having a tunable impedance and phase (“TIP”) circuit to provide an adjustable alpha factor, which allows for a selection of power added efficiency (PAE) curves that are useful for applications having different modulations or to meet other criteria. Embodiments include a Doherty amplifier having a TIP circuit that provides for tunability of the impedance ZINV (resulting in an adjustable alpha factor) while maintaining the phase of the output of the carrier amplifier at 90° (for a selected polarity)±a low phase variation. Embodiments of the TIP circuit include one or more series-connected TIP cells comprising at least one TIP circuit combined with a tunable phase adjustment circuit. In operation, when the impedance of a TIP cell is adjusted, adjustments within the cell are also made to provide a phase shift correction back towards 90° (at the selected polarity).

    Doherty Amplifier with Adjustable Alpha Factor
    10.
    发明申请
    Doherty Amplifier with Adjustable Alpha Factor 审中-公开

    公开(公告)号：US20200153389A1

    公开(公告)日：2020-05-14

    申请号：US16682842

    申请日：2019-11-13

    申请人： pSemi Corporation

    发明人： Michael P. Gaynor

    IPC分类号： H03F1/02 ,  H03F3/21

    摘要： A Doherty amplifier circuit having a tunable impedance and phase (“TIP”) circuit to provide an adjustable alpha factor, which allows for a selection of power added efficiency (PAE) curves that are useful for applications having different modulations or to meet other criteria. Embodiments include a Doherty amplifier having a TIP circuit that provides for tunability of the impedance ZINV (resulting in an adjustable alpha factor) while maintaining the phase of the output of the carrier amplifier at 90° (for a selected polarity)±a low phase variation. Embodiments of the TIP circuit include one or more series-connected TIP cells comprising at least one TIP circuit combined with a tunable phase adjustment circuit. In operation, when the impedance of a TIP cell is adjusted, adjustments within the cell are also made to provide a phase shift correction back towards 90° (at the selected polarity).