Digital tunable inter-stage matching circuit
    2.
    发明授权
    Digital tunable inter-stage matching circuit 有权
    数字可调谐级间匹配电路

    公开(公告)号:US08072272B2

    公开(公告)日:2011-12-06

    申请号:US12715254

    申请日:2010-03-01

    IPC分类号: H03F3/04

    摘要: A tunable inter-stage matching circuit that can improve performance is described. In an exemplary design, an apparatus includes a first active circuit (e.g., a driver amplifier), a second active circuit (e.g., a power amplifier), and a tunable inter-stage matching circuit coupled between the first and second active circuits. The tunable inter-stage matching circuit includes a tunable capacitor that can be varied in discrete steps to adjust impedance matching between the first and second active circuits. In an exemplary design, the tunable capacitor includes (i) a plurality of capacitors coupled in parallel and (ii) a plurality of switches coupled to the plurality of capacitors, one switch for each capacitor. Each switch may be turned on to select an associated capacitor or turned off to unselect the associated capacitor. The tunable capacitor may further include a fixed capacitor coupled in parallel with the plurality of capacitors.

    摘要翻译: 描述了可以提高性能的可调谐级间匹配电路。 在示例性设计中,装置包括耦合在第一和第二有源电路之间的第一有源电路(例如,驱动器放大器),第二有源电路(例如,功率放大器)和可调谐级间匹配电路。 可调谐级间匹配电路包括可以在离散步骤中变化的可调谐电容器,以调整第一和第二有源电路之间的阻抗匹配。 在示例性设计中,可调谐电容器包括(i)并联耦合的多个电容器和(ii)耦合到多个电容器的多个开关,用于每个电容器的一个开关。 每个开关可以被接通以选择一个相关联的电容器或关闭以取消选择相关联的电容器。 可调谐电容器还可以包括与多个电容器并联耦合的固定电容器。

    Digital tunable inter-stage matching circuit
    3.
    发明授权
    Digital tunable inter-stage matching circuit 有权
    数字可调谐级间匹配电路

    公开(公告)号:US09000847B2

    公开(公告)日:2015-04-07

    申请号:US13226397

    申请日:2011-09-06

    摘要: A tunable inter-stage matching circuit that can improve performance is described. In an exemplary design, an apparatus comprises a driver amplifier and a power amplifier. The apparatus may further include an inter-stage matching circuit tunable in discrete steps for matching impedances between the driver amplifier and the power amplifier. The tunable inter-stage matching circuit may include a bank of capacitors, each capacitor of the bank coupled in series with a switch for coupling the capacitor to a ground voltage.

    摘要翻译: 描述了可以提高性能的可调谐级间匹配电路。 在示例性设计中,装置包括驱动器放大器和功率放大器。 该装置还可以包括可以在离散步骤中调节的级间匹配电路,用于匹配驱动器放大器和功率放大器之间的阻抗。 可调谐级间匹配电路可以包括一组电容器,该组的每个电容器与用于将电容器耦合到接地电压的开关串联耦合。

    DIGITAL TUNABLE INTER-STAGE MATCHING CIRCUIT
    4.
    发明申请
    DIGITAL TUNABLE INTER-STAGE MATCHING CIRCUIT 有权
    数字可调节间歇匹配电路

    公开(公告)号:US20110316636A1

    公开(公告)日:2011-12-29

    申请号:US13226397

    申请日:2011-09-06

    IPC分类号: H03H11/28 H03F3/04

    摘要: A tunable inter-stage matching circuit that can improve performance is described. In an exemplary design, an apparatus comprises a driver amplifier and a power amplifier. The apparatus may further include an inter-stage matching circuit tunable in discrete steps for matching impedances between the driver amplifier and the power amplifier. The tunable inter-stage matching circuit may include a bank of capacitors, each capacitor of the bank coupled in series with a switch for coupling the capacitor to a ground voltage.

    摘要翻译: 描述了可以提高性能的可调谐级间匹配电路。 在示例性设计中,装置包括驱动器放大器和功率放大器。 该装置还可以包括可以在离散步骤中调节的级间匹配电路,用于匹配驱动器放大器和功率放大器之间的阻抗。 可调谐级间匹配电路可以包括一组电容器,该组的每个电容器与用于将电容器耦合到接地电压的开关串联耦合。

    MULTI-STAGE IMPEDANCE MATCHING
    5.
    发明申请
    MULTI-STAGE IMPEDANCE MATCHING 有权
    多级阻抗匹配

    公开(公告)号:US20110037516A1

    公开(公告)日:2011-02-17

    申请号:US12641228

    申请日:2009-12-17

    IPC分类号: H03F3/68

    CPC分类号: H03F1/565 H03F3/211 H03F3/72

    摘要: Exemplary techniques for performing impedance matching are described. In an exemplary embodiment, the apparatus may include an amplifier (e.g., a power amplifier) coupled to first and second matching circuits. The first matching circuit may include multiple stages coupled to a first node and may provide input impedance matching for the amplifier. The second matching circuit may include multiple stages coupled to a second node and may provide output impedance matching for the amplifier. At least one switch may be coupled between the first and second nodes and may bypass or select the amplifier. The first and second nodes may have a common impedance. The apparatus may further include a second amplifier coupled in parallel with the amplifier and further to the matching circuits. The second matching circuit may include a first input stage coupled to the amplifier, a second input stage coupled to the second amplifier, and a second stage coupled to the two input stages via switches.

    摘要翻译: 描述了用于执行阻抗匹配的示例性技术。 在示例性实施例中,该装置可以包括耦合到第一和第二匹配电路的放大器(例如,功率放大器)。 第一匹配电路可以包括耦合到第一节点的多个级并且可以为放大器提供输入阻抗匹配。 第二匹配电路可以包括耦合到第二节点的多个级并且可以为放大器提供输出阻抗匹配。 至少一个开关可以耦合在第一和第二节点之间,并且可以旁路或选择放大器。 第一和第二节点可以具有公共阻抗。 该装置还可以包括与放大器并联并且进一步耦合到匹配电路的第二放大器。 第二匹配电路可以包括耦合到放大器的第一输入级,耦合到第二放大器的第二输入级,以及经由开关耦合到两个输入级的第二级。

    Multi-stage impedance matching
    6.
    发明授权
    Multi-stage impedance matching 有权
    多级阻抗匹配

    公开(公告)号:US08536950B2

    公开(公告)日:2013-09-17

    申请号:US12641228

    申请日:2009-12-17

    IPC分类号: H03F3/04

    CPC分类号: H03F1/565 H03F3/211 H03F3/72

    摘要: Exemplary techniques for performing impedance matching are described. In an exemplary embodiment, the apparatus may include an amplifier (e.g., a power amplifier) coupled to first and second matching circuits. The first matching circuit may include multiple stages coupled to a first node and may provide input impedance matching for the amplifier. The second matching circuit may include multiple stages coupled to a second node and may provide output impedance matching for the amplifier. At least one switch may be coupled between the first and second nodes and may bypass or select the amplifier. The first and second nodes may have a common impedance. The apparatus may further include a second amplifier coupled in parallel with the amplifier and further to the matching circuits. The second matching circuit may include a first input stage coupled to the amplifier, a second input stage coupled to the second amplifier, and a second stage coupled to the two input stages via switches.

    摘要翻译: 描述了用于执行阻抗匹配的示例性技术。 在示例性实施例中,该装置可以包括耦合到第一和第二匹配电路的放大器(例如,功率放大器)。 第一匹配电路可以包括耦合到第一节点的多个级并且可以为放大器提供输入阻抗匹配。 第二匹配电路可以包括耦合到第二节点的多个级并且可以为放大器提供输出阻抗匹配。 至少一个开关可以耦合在第一和第二节点之间,并且可以旁路或选择放大器。 第一和第二节点可以具有公共阻抗。 该装置还可以包括与放大器并联并且进一步耦合到匹配电路的第二放大器。 第二匹配电路可以包括耦合到放大器的第一输入级,耦合到第二放大器的第二输入级,以及经由开关耦合到两个输入级的第二级。

    DIGITAL TUNABLE INTER-STAGE MATCHING CIRCUIT
    7.
    发明申请
    DIGITAL TUNABLE INTER-STAGE MATCHING CIRCUIT 有权
    数字可调节间歇匹配电路

    公开(公告)号:US20110043285A1

    公开(公告)日:2011-02-24

    申请号:US12715254

    申请日:2010-03-01

    IPC分类号: H03F3/16

    摘要: A tunable inter-stage matching circuit that can improve performance is described. In an exemplary design, an apparatus includes a first active circuit (e.g., a driver amplifier), a second active circuit (e.g., a power amplifier), and a tunable inter-stage matching circuit coupled between the first and second active circuits. The tunable inter-stage matching circuit includes a tunable capacitor that can be varied in discrete steps to adjust impedance matching between the first and second active circuits. In an exemplary design, the tunable capacitor includes (i) a plurality of capacitors coupled in parallel and (ii) a plurality of switches coupled to the plurality of capacitors, one switch for each capacitor. Each switch may be turned on to select an associated capacitor or turned off to unselect the associated capacitor. The tunable capacitor may further include a fixed capacitor coupled in parallel with the plurality of capacitors.

    摘要翻译: 描述了可以提高性能的可调谐级间匹配电路。 在示例性设计中,装置包括耦合在第一和第二有源电路之间的第一有源电路(例如,驱动器放大器),第二有源电路(例如,功率放大器)和可调谐级间匹配电路。 可调谐级间匹配电路包括可以在离散步骤中变化的可调谐电容器,以调整第一和第二有源电路之间的阻抗匹配。 在示例性设计中,可调谐电容器包括(i)并联耦合的多个电容器和(ii)耦合到多个电容器的多个开关,用于每个电容器的一个开关。 每个开关可以被接通以选择一个相关联的电容器或关闭以取消选择相关联的电容器。 可调谐电容器还可以包括与多个电容器并联耦合的固定电容器。