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    CASCADED LOW-NOISE WIDEBAND ACTIVE PHASE SHIFTER
    1.
    发明公开
    CASCADED LOW-NOISE WIDEBAND ACTIVE PHASE SHIFTER 审中-公开

    公开(公告)号：US20230231542A1

    公开(公告)日：2023-07-20

    申请号：US17648279

    申请日：2022-01-18

    Applicant: Raytheon Company

    Inventor： Steven M. Lardizabal

    IPC: H03H11/20 ,  H03H7/19

    CPC classification number: H03H11/20 ,  H03H7/19 ,  H03K2005/00286

    Abstract: Apparatus and associated methods relate to a low-noise wideband active phase shifter. The low-noise wideband active phase shifter includes first and second transconductance cells, a fixed LC series network and a tunable LC series network configured to form an all-pass lattice network. The first and second transconductance cells, each include a transistor, a feedback network, and a transistor biasing network. The transistor has an input terminal and an output terminal. The negative feedback network electrically couples the input and output terminals of the transistor. The biasing network provides input and output biasing of the transistor. The fixed LC series network connects between the first and the second transconductance cells. The tunable LC series network connects between the first and the second transconductance cells.

    Transistor switches with single-polarity control voltage
    5.
    发明授权
    Transistor switches with single-polarity control voltage 有权
    晶体管开关具有单极性控制电压

    公开(公告)号：US09520628B2

    公开(公告)日：2016-12-13

    申请号：US14527501

    申请日：2014-10-29

    Applicant: ViaSat, Inc.

    Inventor： Christopher D. Grondahl ,  Donald E. Crockett, III

    IPC: H01P1/15 ,  H01P1/18 ,  H03H11/20 ,  H03K17/693

    CPC classification number: H01P1/15 ,  H01P1/18 ,  H03H11/20 ,  H03K17/693

    Abstract: Contrary to phase shifters which require complimentary polarity control voltages, a phase shifter may be driven with a single polarity control voltage. The phase shifter comprises an input node in communication with both a high pass network and a low pass network which are both in communication with an output node, where the phase shifter further comprises a first single pole double throw switch and a second single pole double throw switch configured to selectively pass an RF signal from the input node to the output node by way of one of said high pass network and said low pass network. Furthermore, the first and second single pole double throw switches are configured to select between the high pass network and the low pass network based on a single control signal having a voltage greater than or less than a reference voltage.

    Abstract translation: 与需要互补极性控制电压的移相器相反，移相器可以用单极性控制电压驱动。 移相器包括与输出节点通信的与高通网络和低通网络通信的输入节点，其中移相器还包括第一单极双掷开关和第二单极双掷开关 开关，被配置为通过所述高通网络和所述低通网络之一选择性地将RF信号从输入节点传递到输出节点。 此外，第一和第二单极双掷开关被配置为基于具有大于或小于参考电压的电压的单个控制信号在高通网络和低通网络之间进行选择。

    Reconfigurable filter
    6.
    发明授权
    Reconfigurable filter 有权
    可重构过滤器

    公开(公告)号：US09240815B1

    公开(公告)日：2016-01-19

    申请号：US14224699

    申请日：2014-03-25

    Applicant: Russell D. Wyse

    Inventor： Russell D. Wyse

    IPC: H03H7/12 ,  H03H7/01 ,  H04B1/10 ,  H03H7/21 ,  H03H9/70

    CPC classification number: H04B1/1036 ,  H03H7/01 ,  H03H7/0161 ,  H03H7/12 ,  H03H7/21 ,  H03H9/70 ,  H03H11/20 ,  H03H2007/013 ,  H03H2240/00

    Abstract: A reconfigurable filter includes a splitter for providing an input signal on a plurality of paths. A first path includes a first filter section that can be configured as either a tunable band pass filter with a shunt-connected fixed inductor or a tunable notch filter with a fixed inductor in parallel with a tunable varactor, either of which can be responsive to a control signal. A second path is an all pass section that provides an unfiltered signal. A combiner is provided for combining the first filtered signal with the unfiltered signal for producing a composite signal. The unfiltered signal can have its gain or phase modified in either or both the splitter or the combiner.

    Abstract translation: 可重构滤波器包括用于在多个路径上提供输入信号的分路器。 第一路径包括第一滤波器部分，其可以被配置为具有分流连接的固定电感器的可调谐带通滤波器或具有与可调谐变容二极管并联的固定电感器的可调陷波滤波器，其中任一个可以响应于 控制信号。 第二条路径是提供未滤波信号的全通部分。 提供组合器用于将第一滤波信号与未滤波信号组合以产生复合信号。 未滤波的信号可以在分离器或组合器中的任一个或两者中进行增益或相位修改。

    Phase correction apparatus and method
    7.
    发明授权
    Phase correction apparatus and method 有权
    相位校正装置及方法

    公开(公告)号：US09178554B2

    公开(公告)日：2015-11-03

    申请号：US14228474

    申请日：2014-03-28

    Applicant: FutureWei Technologies, Inc.

    Inventor： Daniel Mccarthy ,  Michael Bushman ,  Lawrence Connell

    IPC: H01B12/06 ,  H04B1/18 ,  H03H11/20 ,  H04L7/00 ,  H04L7/033

    CPC classification number: H04B1/18 ,  H03H11/20 ,  H03H11/22 ,  H04L7/0079 ,  H04L7/033

    Abstract: A method for differential buffer phase correction comprises generating a pair of differential signals from a local oscillator, applying one of the signals to a first inverter and the other signal to a second inverter of a buffer through a differential pair of lines, applying a first positive feedback signal to the first inverter through a first feedback capacitor, wherein the first positive feedback signal is generated from an output of the second inverter and applying a second positive feedback signal to the second inverter through a second feedback capacitor, wherein the second positive feedback signal is generated from an output of the first inverter.

    Abstract translation: 用于差分缓冲器相位校正的方法包括从本地振荡器产生一对差分信号，将一个信号施加到第一反相器，而另一个信号通过差分对线施加到缓冲器的第二反相器，施加第一正 通过第一反馈电容向第一反相器反馈信号，其中第一正反馈信号由第二反相器的输出产生，并通过第二反馈电容向第二反相器施加第二正反馈信号，其中第二正反馈信号 从第一反相器的输出产生。

    TRANSISTOR SWITCHES WITH SINGLE-POLARITY CONTROL VOLTAGE
    8.
    发明申请
    TRANSISTOR SWITCHES WITH SINGLE-POLARITY CONTROL VOLTAGE 有权
    具有单极性控制电压的晶体管开关

    公开(公告)号：US20150123725A1

    公开(公告)日：2015-05-07

    申请号：US14527501

    申请日：2014-10-29

    Applicant: ViaSat, Inc.

    Inventor： Christopher D. Grondahl ,  Donald E. Crockett, III

    IPC: H03K17/693

    CPC classification number: H01P1/15 ,  H01P1/18 ,  H03H11/20 ,  H03K17/693

    Abstract: Contrary to phase shifters which require complimentary polarity control voltages, a phase shifter may be driven with a single polarity control voltage. The phase shifter comprises an input node in communication with both a high pass network and a low pass network which are both in communication with an output node, where the phase shifter further comprises a first single pole double throw switch and a second single pole double throw switch configured to selectively pass an RF signal from the input node to the output node by way of one of said high pass network and said low pass network. Furthermore, the first and second single pole double throw switches are configured to select between the high pass network and the low pass network based on a single control signal having a voltage greater than or less than a reference voltage.

    Abstract translation: 与需要互补极性控制电压的移相器相反，移相器可以用单极性控制电压驱动。 移相器包括与输出节点通信的与高通网络和低通网络通信的输入节点，其中移相器还包括第一单极双掷开关和第二单极双掷开关 开关，被配置为通过所述高通网络和所述低通网络之一选择性地将RF信号从输入节点传递到输出节点。 此外，第一和第二单极双掷开关被配置为基于具有大于或小于参考电压的电压的单个控制信号在高通网络和低通网络之间进行选择。

    Integrated circuit, communication unit and method for phase adjustment
    9.
    发明授权
    Integrated circuit, communication unit and method for phase adjustment 有权
    集成电路，通讯单元及相位调整方法

    公开(公告)号：US08941534B2

    公开(公告)日：2015-01-27

    申请号：US13377991

    申请日：2009-07-16

    Applicant: Ralf Reuter

    Inventor： Ralf Reuter

    IPC: G01S7/03 ,  H03H11/20

    CPC classification number: G01S7/03 ,  H03H11/20

    Abstract: An integrated circuit for phase shifting a radio frequency signal, wherein the integrated circuit comprises at least one phase shifter comprising: at least one input for receiving a radio frequency signal, a voltage variable element; and a plurality of active devices operably coupled to the voltage variable element and arranged to receive a variable control voltage. The plurality of active devices comprise at least two active devices coupled in a common base arrangement and arranged to receive the radio frequency signal with the voltage variable element coupling the emitter contacts or source contacts of the at least two active devices, such that a variable control voltage applied to the voltage variable element adjusts a phase of the radio frequency signal.

    Abstract translation: 一种用于移相射频信号的集成电路，其中所述集成电路包括至少一个移相器，包括：用于接收射频信号的至少一个输入端，电压可变元件; 以及可操作地耦合到所述电压可变元件并被布置成接收可变控制电压的多个有源器件。 所述多个有源器件包括耦合在公共基极布置中的至少两个有源器件，并布置成接收射频信号，电压可变元件耦合至少两个有源器件的发射极触点或源触点，使得可变控制 施加到电压可变元件的电压调节射频信号的相位。

    Transistor switches with single-polarity control voltage
    10.
    发明授权
    Transistor switches with single-polarity control voltage 有权
    晶体管开关具有单极性控制电压

    公开(公告)号：US08907745B2

    公开(公告)日：2014-12-09

    申请号：US13187195

    申请日：2011-07-20

    Applicant: Christopher D. Grondahl ,  Donald E. Crockett, III

    Inventor： Christopher D. Grondahl ,  Donald E. Crockett, III

    IPC: H01P1/18 ,  H01P1/15 ,  H03H11/20

    CPC classification number: H01P1/15 ,  H01P1/18 ,  H03H11/20 ,  H03K17/693

    Abstract: Contrary to phase shifters which require complimentary polarity control voltages, a phase shifter may be driven with a single polarity control voltage. The phase shifter comprises an input node in communication with both a high pass network and a low pass network which are both in communication with an output node, where the phase shifter further comprises a first single pole double throw switch and a second single pole double throw switch configured to selectively pass an RF signal from the input node to the output node by way of one of said high pass network and said low pass network. Furthermore, the first and second single pole double throw switches are configured to select between the high pass network and the low pass network based on a single control signal having a voltage greater than or less than a reference voltage.

    Abstract translation: 与需要互补极性控制电压的移相器相反，移相器可以用单极性控制电压驱动。 移相器包括与输出节点通信的与高通网络和低通网络通信的输入节点，其中移相器还包括第一单极双掷开关和第二单极双掷开关 开关，被配置为通过所述高通网络和所述低通网络之一选择性地将RF信号从输入节点传递到输出节点。 此外，第一和第二单极双掷开关被配置为基于具有大于或小于参考电压的电压的单个控制信号在高通网络和低通网络之间进行选择。

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