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    Amplifier with integral notch filter
    11.
    发明授权
    Amplifier with integral notch filter 有权
    带积分陷波滤波器的放大器

    公开(公告)号：US09473101B2

    公开(公告)日：2016-10-18

    申请号：US14617579

    申请日：2015-02-09

    Applicant: QUALCOMM Incorporated

    Inventor： Alan Ngar Loong Chan ,  Saihua Lin

    IPC: H03F3/191 ,  H03G3/30 ,  H04B1/10 ,  H03F1/56 ,  H03F3/193

    CPC classification number: H03G3/3042 ,  H03F1/3205 ,  H03F1/565 ,  H03F3/191 ,  H03F3/193 ,  H03F2200/165 ,  H03F2200/213 ,  H03F2200/216 ,  H03F2200/225 ,  H03F2200/267 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/492 ,  H04B1/1036

    Abstract: An amplifier is disclosed that may include a filter, such as a notch-filter, to filter an output signal provided by the amplifier. The included filter may suppress and/or reduce a gain of the amplifier for a particular range of frequencies. In one embodiment, a frequency response of the filter may be determined by one or more reactive components included within the amplifier. In at least one embodiment, the amplifier may include two or more mutual inductors to reduce the gain of the amplifier when operated at or near a predetermined frequency. In another embodiment, the amplifier may include one or more variable capacitors that may enable the frequency response of the filter to be changed and/or modified.

    Abstract translation: 公开了一种放大器，其可以包括滤波器，例如陷波滤波器，以对放大器提供的输出信号进行滤波。 所包括的滤波器可以在特定频率范围内抑制和/或降低放大器的增益。 在一个实施例中，滤波器的频率响应可以由包括在放大器内的一个或多个无功分量来确定。 在至少一个实施例中，放大器可以包括两个或更多个互感器，以在预定频率处或接近预定频率下操作时减小放大器的增益。 在另一个实施例中，放大器可以包括一个或多个可变电容器，其可使得能够改变和/或修改滤波器的频率响应。

    Systems and methods of harmonic extraction and rejection
    13.
    发明授权
    Systems and methods of harmonic extraction and rejection 有权
    谐波提取和排斥的系统和方法

    公开(公告)号：US09130517B2

    公开(公告)日：2015-09-08

    申请号：US13646467

    申请日：2012-10-05

    Applicant: QUALCOMM Incorporated

    Inventor： Saihua Lin ,  Roger Brockenbrough

    IPC: H03K5/13 ,  H03F1/32 ,  H03F3/60

    CPC classification number: H03F1/3252 ,  H03F3/602 ,  H03F2200/192

    Abstract: A device includes a first hybrid, where a first input of the first hybrid is coupled to an output of a first amplifier configured to receive a first input signal. A first input of a second hybrid is coupled to an output of a second amplifier configured to receive a second input signal. The device includes a first phase shifter configured to receive the first input signal and a second phase shifter configured to receive the second input signal. An output of the first phase shifter is coupled to an input of a third amplifier, and an output of the third amplifier is coupled to a second input of the second hybrid. An output of the second phase shifter is coupled to an input of a fourth amplifier, and an output of the fourth amplifier is coupled to a second input of the first hybrid.

    Abstract translation: 一种器件包括第一混合器，其中第一混合器的第一输入耦合到被配置为接收第一输入信号的第一放大器的输出。 第二混合器的第一输入耦合到被配置为接收第二输入信号的第二放大器的输出。 该装置包括被配置为接收第一输入信号的第一移相器和被配置为接收第二输入信号的第二移相器。 第一移相器的输出耦合到第三放大器的输入，第三放大器的输出耦合到第二混合器的第二输入端。 第二移相器的输出耦合到第四放大器的输入，第四放大器的输出耦合到第一混合器的第二输入。

    DRIVER AMPLIFIER WITH ASYMMETRICAL T-COIL MATCHING NETWORK
    14.
    发明申请
    DRIVER AMPLIFIER WITH ASYMMETRICAL T-COIL MATCHING NETWORK 有权
    带不对称T型线圈匹配网络的驱动放大器

    公开(公告)号：US20140176242A1

    公开(公告)日：2014-06-26

    申请号：US13722433

    申请日：2012-12-20

    Applicant: QUALCOMM INCORPORATED

    Inventor： Saihua Lin

    IPC: H03H7/38 ,  H03F3/193

    CPC classification number: H03H7/38 ,  H03F1/223 ,  H03F1/565 ,  H03F3/191 ,  H03F3/193 ,  H03F2200/378

    Abstract: A driver amplifier with asymmetrical T-coil matching network is disclosed. In an exemplary embodiment, an apparatus includes a first inductor configured to receive an input signal at an input terminal and to provide an output signal at an output terminal that is matched to a resistive load. The apparatus also includes a second inductor connected to the first inductor and coupled to the first inductor by a coupling coefficient, the second inductor having a first terminal connected to a supply voltage.

    Abstract translation: 公开了一种具有不对称T型线圈匹配网络的驱动放大器。 在示例性实施例中，一种装置包括：第一电感器，被配置为在输入端子处接收输入信号，并且在与电阻负载匹配的输出端子处提供输出信号。 该装置还包括连接到第一电感器并通过耦合系数耦合到第一电感器的第二电感器，第二电感器具有连接到电源电压的第一端子。

    SIGNAL COMPONENT REJECTION
    15.
    发明申请
    SIGNAL COMPONENT REJECTION 有权
    信号组件拒绝

    公开(公告)号：US20140176217A1

    公开(公告)日：2014-06-26

    申请号：US13725315

    申请日：2012-12-21

    Applicant: QUALCOMM, INCORPORATED

    Inventor： Saihua Lin ,  Roger Brockenbrough

    IPC: H03K5/1252 ,  H03K5/13

    CPC classification number: H03K5/1252 ,  H03D7/165 ,  H03D7/18 ,  H03D2200/0086 ,  H03K5/13

    Abstract: A method includes providing a first local oscillator signal having a first duty cycle to a first mixer unit and providing a second local oscillator signal having a second duty cycle to a second mixer unit. At least one of the first duty cycle or the second duty cycle is greater than fifty percent. A frequency of the first local oscillator signal approximately equals a frequency of the second local oscillator signal. The method may also include generating a modulated output signal based on an output signal of the first mixer unit and based on an output signal of the second mixer unit.

    Abstract translation: 一种方法包括向第一混频器单元提供具有第一占空比的第一本地振荡器信号，并向第二混频器单元提供具有第二占空比的第二本地振荡器信号。 第一个占空比或第二个占空比中的至少一个大于百分之五十。 第一本地振荡器信号的频率近似等于第二本地振荡器信号的频率。 该方法还可以包括基于第一混频器单元的输出信号并基于第二混频器单元的输出信号生成调制输出信号。

    SYSTEMS AND METHODS OF HARMONIC EXTRACTION AND REJECTION
    16.
    发明申请
    SYSTEMS AND METHODS OF HARMONIC EXTRACTION AND REJECTION 有权
    谐波提取和吸收的系统和方法

    公开(公告)号：US20140097874A1

    公开(公告)日：2014-04-10

    申请号：US13646467

    申请日：2012-10-05

    Applicant: QUALCOMM INCORPORATED

    Inventor： Saihua Lin ,  Roger Brockenbrough

    IPC: H03K5/01

    CPC classification number: H03F1/3252 ,  H03F3/602 ,  H03F2200/192

    Abstract: A device includes a first hybrid, where a first input of the first hybrid is coupled to an output of a first amplifier configured to receive a first input signal. A first input of a second hybrid is coupled to an output of a second amplifier configured to receive a second input signal. The device includes a first phase shifter configured to receive the first input signal and a second phase shifter configured to receive the second input signal. An output of the first phase shifter is coupled to an input of a third amplifier, and an output of the third amplifier is coupled to a second input of the second hybrid. An output of the second phase shifter is coupled to an input of a fourth amplifier, and an output of the fourth amplifier is coupled to a second input of the first hybrid.

    Abstract translation: 一种器件包括第一混合器，其中第一混合器的第一输入耦合到被配置为接收第一输入信号的第一放大器的输出。 第二混合器的第一输入耦合到被配置为接收第二输入信号的第二放大器的输出。 该装置包括被配置为接收第一输入信号的第一移相器和被配置为接收第二输入信号的第二移相器。 第一移相器的输出耦合到第三放大器的输入，第三放大器的输出耦合到第二混合器的第二输入端。 第二移相器的输出耦合到第四放大器的输入，第四放大器的输出耦合到第一混合器的第二输入。

    SWITCHABLE SUPPLY AND TUNABLE LOAD IMPEDANCE POWER AMPLIFIER
    18.
    发明申请
    SWITCHABLE SUPPLY AND TUNABLE LOAD IMPEDANCE POWER AMPLIFIER 有权
    可切换供电和可调负载阻抗功率放大器

    公开(公告)号：US20160373064A1

    公开(公告)日：2016-12-22

    申请号：US14744894

    申请日：2015-06-19

    Applicant: QUALCOMM Incorporated

    Inventor： Saihua Lin ,  Jonghoon Choi

    IPC: H03F1/02 ,  H03F3/19 ,  H03F3/21 ,  H04W4/00 ,  H04W52/38

    CPC classification number: H03F1/0205 ,  H03F3/19 ,  H03F3/211 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2203/21106 ,  H04B1/0458 ,  H04W4/80 ,  H04W52/38 ,  H04W84/12 ,  H04W88/06

    Abstract: A transceiver configured to transmit data in a plurality of operating modes including a Wi-Fi mode and two or more different Bluetooth power modes, the transceiver comprising: a first power amplifier configured to amplify Bluetooth signals; a second power amplifier configured to amplify Wi-Fi signals; an antenna coupled to the second power amplifier; and a tunable load circuit, coupled between the first amplifier and the second amplifier, configured to provide a different load impedance for each of the plurality of operating modes, the tunable load circuit consisting of: two impedance paths coupled in parallel between output terminals of the first and second amplifiers; and a number of shunt paths coupled between the tunable load circuit and ground potential.

    Abstract translation: 收发器，被配置为以包括Wi-Fi模式和两个或更多个不同的蓝牙功率模式的多种操作模式发送数据，所述收发器包括：配置成放大蓝牙信号的第一功率放大器; 配置成放大Wi-Fi信号的第二功率放大器; 耦合到所述第二功率放大器的天线; 以及耦合在所述第一放大器和所述第二放大器之间的可调负载电路，被配置为为所述多个工作模式中的每一个提供不同的负载阻抗，所述可调负载电路由以下两个组成：两个阻抗路径并联耦合在 第一和第二放大器; 以及耦合在可调负载电路和地电位之间的多个并联路径。

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