Multi-band impedance tuners using weakly-coupled LC resonators

    公开(公告)号:US09680440B2

    公开(公告)日:2017-06-13

    申请号:US14554943

    申请日:2014-11-26

    Abstract: Radio frequency (RF) filter structures and related methods and RF front-end circuitry are disclosed. In one embodiment, an RF filter structure includes a first terminal and a first tunable RF filter path defined between the first terminal and a second terminal. The first tunable RF filter path is tunable to provide impedance matching between the first terminal and the second terminal at a first frequency. The first frequency may be provided within a first frequency band. Additionally, the RF filter structure includes a second tunable RF filter path defined between the first terminal and the second terminal. The second tunable RF filter path is tunable to provide impedance matching between the first terminal and the second terminal at a second frequency. The second frequency may be within a second frequency band. In this manner, the RF filter structure is configured to provide impedance tuning for multiple impedance bands simultaneously.

    Multi-band impedance tuners using weakly-coupled LC resonators

    公开(公告)号:US09628042B2

    公开(公告)日:2017-04-18

    申请号:US14554943

    申请日:2014-11-26

    Abstract: Radio frequency (RF) filter structures and related methods and RF front-end circuitry are disclosed. In one embodiment, an RF filter structure includes a first terminal and a first tunable RF filter path defined between the first terminal and a second terminal. The first tunable RF filter path is tunable to provide impedance matching between the first terminal and the second terminal at a first frequency. The first frequency may be provided within a first frequency band. Additionally, the RF filter structure includes a second tunable RF filter path defined between the first terminal and the second terminal. The second tunable RF filter path is tunable to provide impedance matching between the first terminal and the second terminal at a second frequency. The second frequency may be within a second frequency band. In this manner, the RF filter structure is configured to provide impedance tuning for multiple impedance bands simultaneously.

    Reconfigurable directional coupler with a variable coupling factor
    77.
    发明授权
    Reconfigurable directional coupler with a variable coupling factor 有权
    具有可变耦合因子的可重构定向耦合器

    公开(公告)号:US09503044B2

    公开(公告)日:2016-11-22

    申请号:US14815252

    申请日:2015-07-31

    Abstract: The present disclosure relates to a reconfigurable directional coupler with a variable coupling factor that can be changed in value as a function of a desired transmit band of operation. The reconfigurable directional coupler includes a primary inductive segment, secondary inductive segments, and switch circuitry configured to change the total coupling capacitance formed between the primary and secondary inductive segments by selectively switching the secondary inductive segments into the secondary signal path. Simultaneously, the mutual inductance and coupling factor between the primary and the secondary inductive segments are reconfigured.

    Abstract translation: 本公开涉及具有可变耦合因子的可重新配置的定向耦合器,其可以根据期望的发射操作频带而变化。 可重构定向耦合器包括初级感应段,次级感应段和开关电路,其经配置以通过选择性地将次级感应段切换到辅助信号路径来改变形成在初级和次级感应段之间的总耦合电容。 同时,初级和次级感应段之间的互感和耦合因子被重新配置。

    RADIO FREQUENCY FILTERING CIRCUITRY WITH RESONATORS
    78.
    发明申请
    RADIO FREQUENCY FILTERING CIRCUITRY WITH RESONATORS 有权
    无线频率滤波电路与谐振器

    公开(公告)号:US20160126929A1

    公开(公告)日:2016-05-05

    申请号:US14931165

    申请日:2015-11-03

    CPC classification number: H03H7/463 H01F17/0006

    Abstract: RF multiplexer circuitry includes a first signal path coupled between a first intermediate node and a common node, a second signal path coupled between a second intermediate node and the common node, first resonator circuitry coupled between the first signal path and ground, and second resonator circuitry coupled between the second signal path and ground. The first resonator circuitry is configured to allow signals within a first frequency pass band to pass between the first intermediate node and the common node, while attenuating signals outside of the first frequency pass band. The first resonator circuitry includes a first LC resonator. The second resonator circuitry is configured to allow signals within a second frequency pass band to pass between the second intermediate node and the common node, while attenuating signals outside of the second frequency pass band.

    Abstract translation: RF多路复用器电路包括耦合在第一中间节点和公共节点之间的第一信号路径,耦合在第二中间节点和公共节点之间的第二信号路径,耦合在第一信号路径和地之间的第一谐振器电路和第二谐振器电路 耦合在第二信号路径和地之间。 第一谐振器电路被配置为允许在第一频率通带内的信号在第一中间节点和公共节点之间通过,同时衰减第一频率通带之外的信号。 第一谐振器电路包括第一LC谐振器。 第二谐振器电路被配置为允许在第二频带内的信号在第二中间节点和公共节点之间通过,同时衰减第二频带之外的信号。

    LOW NOISE AMPLIFIER
    79.
    发明申请
    LOW NOISE AMPLIFIER 有权
    低噪音放大器

    公开(公告)号:US20160126906A1

    公开(公告)日:2016-05-05

    申请号:US14931448

    申请日:2015-11-03

    Abstract: Circuitry includes a floating-body main field-effect transistor (FET) device, a body-contacted cascode FET device, and biasing circuitry coupled to the floating-body main FET device and the body-contacted cascode FET device. The floating-body main FET device includes a gate contact, a drain contact, and a source contact. The body-contacted cascode FET device includes a gate contact, a drain contact coupled to a supply voltage, and a source contact coupled to the drain contact of the floating-body main FET device and to a body region of the body-contacted cascode FET device. The biasing circuitry is coupled to the gate contact of the floating-body main FET device and the gate contact of the body-contacted cascode FET device and configured to provide biasing signals to the floating-body main FET device and the body-contacted cascode FET device such that a majority of the supply voltage is provided across the body-contacted cascode FET device.

    Abstract translation: 电路包括浮体主场效应晶体管(FET)器件,体接触共源共栅FET器件和耦合到浮体主FET器件和体接触共源共栅FET器件的偏置电路。 浮体主FET器件包括栅极接触,漏极接触和源极接触。 身体接触的共源共栅型FET器件包括栅极接触,耦合到电源电压的漏极接触以及耦合到浮体主FET器件的漏极接触和与身体接触的共源共栅FET的体区的源极接触 设备。 偏置电路耦合到浮体主FET器件的栅极接触和体接触共源共栅FET器件的栅极接触,并且被配置为向浮体主FET器件和体接触的共源共栅FET提供偏置信号 器件,使得大部分电源电压被提供在身体接触的共源共栅型FET器件上。

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