Amplifiers with configurable mutually-coupled source degeneration inductors
    31.
    发明授权
    Amplifiers with configurable mutually-coupled source degeneration inductors 有权
    具有可配置的相互耦合的源极退化电感的放大器

    公开(公告)号:US09154087B2

    公开(公告)日:2015-10-06

    申请号:US13956626

    申请日:2013-08-01

    CPC classification number: H03F1/565 H03F1/223 H03F3/193 H03F3/68

    Abstract: Amplifiers with configurable mutually-coupled source degeneration inductors are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a gain transistor and a plurality of inductors, which may implement an amplifier. The gain transistor receives an input signal and provides an amplified signal. The plurality of inductors are mutually coupled, are coupled to the gain transistor, and provide a programmable source degeneration inductance for the gain transistor. The inductors may have a positive coupling coefficient and may provide a larger source degeneration inductance. Alternatively, the inductors may have a negative coupling coefficient and may provide a smaller source degeneration inductance.

    Abstract translation: 公开了具有可配置的相互耦合的源极退化电感器的放大器。 在示例性设计中,装置(例如,无线装置或集成电路)包括增益晶体管和可以实现放大器的多个电感器。 增益晶体管接收输入信号并提供放大信号。 多个电感器相互耦合,耦合到增益晶体管,并为增益晶体管提供可编程的源极退化电感。 电感器可以具有正耦合系数并且可以提供更大的源极退化电感。 或者,电感器可以具有负耦合系数并且可以提供较小的源极退化电感。

    AMPLIFIERS WITH CONFIGURABLE MUTUALLY-COUPLED SOURCE DEGENERATION INDUCTORS
    36.
    发明申请
    AMPLIFIERS WITH CONFIGURABLE MUTUALLY-COUPLED SOURCE DEGENERATION INDUCTORS 有权
    具有可配置的耦合源变换电感的放大器

    公开(公告)号:US20150035600A1

    公开(公告)日:2015-02-05

    申请号:US13956626

    申请日:2013-08-01

    CPC classification number: H03F1/565 H03F1/223 H03F3/193 H03F3/68

    Abstract: Amplifiers with configurable mutually-coupled source degeneration inductors are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a gain transistor and a plurality of inductors, which may implement an amplifier. The gain transistor receives an input signal and provides an amplified signal. The plurality of inductors are mutually coupled, are coupled to the gain transistor, and provide a programmable source degeneration inductance for the gain transistor. The inductors may have a positive coupling coefficient and may provide a larger source degeneration inductance. Alternatively, the inductors may have a negative coupling coefficient and may provide a smaller source degeneration inductance.

    Abstract translation: 公开了具有可配置的相互耦合的源极退化电感器的放大器。 在示例性设计中,装置(例如,无线装置或集成电路)包括增益晶体管和可以实现放大器的多个电感器。 增益晶体管接收输入信号并提供放大信号。 多个电感器相互耦合,耦合到增益晶体管,并为增益晶体管提供可编程的源极退化电感。 电感器可以具有正耦合系数并且可以提供更大的源极退化电感。 或者,电感器可以具有负耦合系数并且可以提供较小的源极退化电感。

    RECEIVER FRONT END FOR CARRIER AGGREGATION
    37.
    发明申请
    RECEIVER FRONT END FOR CARRIER AGGREGATION 有权
    接收端前端用于载波聚合

    公开(公告)号:US20140348274A1

    公开(公告)日:2014-11-27

    申请号:US13901924

    申请日:2013-05-24

    Abstract: Techniques for providing a receiver front end supporting carrier aggregation with gain alignment and improved matching across modes. In an aspect, auxiliary circuitry is configurable to selectively enable or disable mutual coupling between a source degeneration inductor of an LNA input transistor and an auxiliary inductor. A negative turns ratio coupling is provided between the inductors, such that the effective inductance of the source degeneration inductor is lowered when mutually coupled to the auxiliary inductor. In a non-carrier aggregation (non-CA) mode, the auxiliary inductor is disabled, while in a carrier aggregation (CA) mode, the auxiliary inductor is enabled. In this manner, using a single transistor, gain alignment across non-CA and CA modes is achieved. Furthermore, matching is preserved across non-CA and CA modes using a single external matching component.

    Abstract translation: 用于提供接收机前端的技术,其支持具有增益对准和改进的模式匹配的载波聚合。 在一方面,辅助电路可配置为选择性地启用或禁用LNA输入晶体管的源极退化电感器和辅助电感器之间的互耦合。 在电感器之间提供负匝数比耦合,使得当与辅助电感器相互耦合时,源极退化电感器的有效电感降低。 在非载波聚合(非CA)模式下,辅助电感被禁用,而在载波聚合(CA)模式下,辅助电感被使能。 以这种方式,使用单个晶体管,实现了非CA和CA模式之间的增益对准。 此外,使用单个外部匹配组件在非CA和CA模式之间保留匹配。

    AMPLIFIERS WITH BOOSTED OR DEBOOSTED SOURCE DEGENERATION INDUCTANCE
    38.
    发明申请
    AMPLIFIERS WITH BOOSTED OR DEBOOSTED SOURCE DEGENERATION INDUCTANCE 有权
    具有升压或去离子源变差电感的放大器

    公开(公告)号:US20140300417A1

    公开(公告)日:2014-10-09

    申请号:US13857031

    申请日:2013-04-04

    Abstract: Amplifiers with boosted or deboosted source degeneration inductance are disclosed. In an exemplary design, an apparatus includes an amplifier circuit and a feedback circuit. The amplifier circuit receives an input signal and provides an output signal and includes a source degeneration inductor. The feedback circuit is coupled between a node of the amplifier circuit and the source degeneration inductor. The feedback circuit provides feedback to vary an input impedance of an amplifier including the amplifier circuit and the feedback circuit. The feedback circuit may be programmable and may be enabled to provide feedback or disabled to provide no feedback. Alternatively, the feedback circuit may always be enabled to provide feedback. In either case, the feedback circuit may have a variable gain to provide a variable input impedance for the amplifier.

    Abstract translation: 公开了具有升压或去激发的源极退化电感的放大器。 在示例性设计中,装置包括放大器电路和反馈电路。 放大器电路接收输入信号并提供输出信号并包括源极退化电感器。 反馈电路耦合在放大器电路的节点和源极退化电感之间。 反馈电路提供反馈以改变包括放大器电路和反馈电路的放大器的输入阻抗。 反馈电路可以是可编程的并且可以被启用以提供反馈或禁用以提供无反馈。 或者,反馈电路可以总是能够提供反馈。 在任一情况下,反馈电路可以具有可变增益以为放大器提供可变输入阻抗。

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