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    DUAL INSTANTANEOUS ENVELOPE TRACKING
    83.
    发明申请
    DUAL INSTANTANEOUS ENVELOPE TRACKING 有权
    双重即时包裹跟踪

    公开(公告)号：US20140306769A1

    公开(公告)日：2014-10-16

    申请号：US14254215

    申请日：2014-04-16

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Baker Scott ,  Michael R. Kay

    IPC: H03F1/02 ,  H03F3/19

    CPC classification number: H03F1/0227 ,  H03F1/0266 ,  H03F3/19 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2200/555

    Abstract: Power supply circuitry, which includes a parallel amplifier and a parallel amplifier power supply, is disclosed. The power supply circuitry operates in either an average power tracking mode or an envelope tracking mode. The parallel amplifier power supply provides a parallel amplifier power supply signal. The parallel amplifier regulates an envelope power supply voltage based on an envelope power supply control signal using the parallel amplifier power supply signal, which provides power for amplification. During the envelope tracking mode, the envelope power supply voltage at least partially tracks an envelope of an RF transmit signal and the parallel amplifier power supply signal at least partially tracks the envelope power supply control signal. During the average power tracking mode, the envelope power supply voltage does not track the envelope of the RF transmit signal.

    Abstract translation: 公开了包括并联放大器和并行放大器电源的电源电路。 电源电路在平均功率跟踪模式或包络跟踪模式下工作。 并联放大器电源提供并联放大器电源信号。 并联放大器基于包络电源控制信号，使用并联放大器电源信号来调节包络电源电压，该信号提供放大功率。 在包络跟踪模式期间，信封电源电压至少部分地跟踪RF发射信号的包络，并且并行放大器电源信号至少部分地跟踪包络电源控制信号。 在平均功率跟踪模式期间，包络电源电压不跟踪RF发射信号的包络。

    POWER MANAGEMENT/POWER AMPLIFIER OPERATION UNDER DYNAMIC BATTERY DROPS
    84.
    发明申请
    POWER MANAGEMENT/POWER AMPLIFIER OPERATION UNDER DYNAMIC BATTERY DROPS 有权
    电源管理/功率放大器在动态电池下的运行

    公开(公告)号：US20140266429A1

    公开(公告)日：2014-09-18

    申请号：US14209581

    申请日：2014-03-13

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Jean-Blaise Pierres ,  Michael R. Kay

    IPC: H03F1/02

    CPC classification number: H03F1/02 ,  H03F1/0211 ,  H03F1/0261 ,  H03F2203/45192

    Abstract: In one embodiment, a digital internal amplified voltage of power management circuitry is forced to an input threshold voltage upon a determination that a set of emergency conditions is satisfied, and is set to an input minimum battery voltage upon a determination that the set of emergency conditions is not satisfied. The emergency conditions may include determining that a battery voltage is less than a threshold voltage and determining that an input minimum battery voltage is less than an input threshold voltage.

    Abstract translation: 在一个实施例中，当确定一组紧急情况被满足时，将功率管理电路的数字内部放大电压强制为输入阈值电压，并且在确定该组紧急情况时被设置为输入最小电池电压 不满意 紧急情况可以包括确定电池电压小于阈值电压并且确定输入的最小电池电压小于输入阈值电压。

    DUAL ANTENNA INTEGRATED CARRIER AGGREGATION FRONT END SOLUTION
    86.
    发明申请
    DUAL ANTENNA INTEGRATED CARRIER AGGREGATION FRONT END SOLUTION 有权
    双天线集成载波聚合前端解决方案

    公开(公告)号：US20130336181A1

    公开(公告)日：2013-12-19

    申请号：US13852527

    申请日：2013-03-28

    Applicant: RF MICRO DEVICES, INC.

    Inventor： Nadim Khlat ,  Marcus Granger-Jones

    IPC: H04L5/06

    CPC classification number: H04L5/06 ,  H04B1/0057 ,  H04L5/001 ,  H04L5/12 ,  H04L27/0002

    Abstract: Radio frequency front end circuitry comprises a first antenna port, a second antenna port, antenna switching circuitry, a first diplexer, and a second diplexer. The antenna switching circuitry is coupled to each of the first antenna port and the second antenna port through the first diplexer and the second diplexer, respectively. The antenna switching circuitry is adapted to selectively couple one or more of a plurality of transmit and receive ports to the first antenna port and the second antenna port.

    Abstract translation: 射频前端电路包括第一天线端口，第二天线端口，天线切换电路，第一双工器和第二双工器。 天线切换电路分别通过第一双工器和第二双工器耦合到第一天线端口和第二天线端口中的每一个。 天线切换电路适于选择性地将多个发射和接收端口中的一个或多个耦合到第一天线端口和第二天线端口。

    ANTENNA SWITCHING CIRCUITRY FOR MIMO/DIVERSITY MODES
    87.
    发明申请
    ANTENNA SWITCHING CIRCUITRY FOR MIMO/DIVERSITY MODES 审中-公开
    用于MIMO /多样性模式的天线切换电路

    公开(公告)号：US20130335161A1

    公开(公告)日：2013-12-19

    申请号：US13952880

    申请日：2013-07-29

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat

    IPC: H01P1/15 ,  B81B7/02

    CPC classification number: H04B1/44 ,  B81B7/02 ,  H01P1/15

    Abstract: This disclosure relates to antenna switching circuitry and other radio frequency (RF) front-end circuitry. In one embodiment, the antenna switching circuitry includes a multiple throw solid-state transistor switch (MTSTS), a multiple throw microelectromechanical switch (MTMEMS), and a control circuit. The MTSTS is configured to selectively couple a first pole port to any one of a first set of throw ports and to selectively couple a second pole port to any one of a second set of throw ports. The MTMEMS is configured to selectively couple a third pole port to any one of a third set of throw ports. The control circuit is configured to control the selective coupling of the MTSTS and the MTMEMS. In this manner, the control circuit may operate the antenna switching circuitry so that RF signals may be routed in accordance with Long Term Evolution (LTE) Multiple-Input and Multiple-Output (MIMO) and/or LTE diversity specifications.

    Abstract translation: 本公开涉及天线切换电路和其他射频（RF）前端电路。 在一个实施例中，天线切换电路包括多掷固态晶体管开关（MTSTS），多掷微机电开关（MTMEMS）和控制电路。 MTSTS被配置为选择性地将第一极端口耦合到第一组投掷端口中的任一个并且选择性地将第二极端口耦合到第二组投掷端口中的任一个。 MTMEMS被配置为选择性地将第三极端口耦合到第三组投掷端口中的任何一个。 控制电路被配置为控制MTSTS和MTMEMS的选择性耦合。 以这种方式，控制电路可以操作天线切换电路，使得可以根据长期演进（LTE）多输入和多输出（MIMO）和/或LTE分集规范来路由RF信号。

    VSWR TOLERANT TUNABLE HYBRID DUPLEXER
    88.
    发明申请
    VSWR TOLERANT TUNABLE HYBRID DUPLEXER 有权
    VSWR耐压TUNABLE混合双工器

    公开(公告)号：US20130321097A1

    公开(公告)日：2013-12-05

    申请号：US13904520

    申请日：2013-05-29

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Marcus Granger-Jones ,  Ruediger Bauder

    IPC: H01P5/12 ,  H01P1/213

    CPC classification number: H01P5/12 ,  H04B1/0057

    Abstract: The disclosure describes a dual hybrid duplexer including two hybrid couplers, two intra-filters, a tunable isolation load, and a phase shifter. The phase shifter may be located at the isolation port. The phase shifter may be located at the antenna port. In one embodiment, a dual hybrid duplexer includes two hybrid couplers, two intra-filters, a tunable isolation load, a first phase shifter located at the isolation port, and a second phase shifter located at the antenna port. The first and second phase shifters have a difference of 90 degrees (plus or minus 10 degrees).

    Abstract translation: 本公开描述了一种双混合双工器，其包括两个混合耦合器，两个内部滤波器，可调谐隔离负载和移相器。 移相器可以位于隔离端口处。 移相器可以位于天线端口处。 在一个实施例中，双混合双工器包括两个混合耦合器，两个内部滤波器，可调谐隔离负载，位于隔离端口的第一移相器和位于天线端口处的第二移相器。 第一和第二移相器具有90度（正负10度）的差。

    RF TRANSCEIVER WITH DISTRIBUTED FILTERING TOPOLOGY
    90.
    发明申请
    RF TRANSCEIVER WITH DISTRIBUTED FILTERING TOPOLOGY 有权
    具有分布式滤波拓扑的RF收发器

    公开(公告)号：US20130201881A1

    公开(公告)日：2013-08-08

    申请号：US13760201

    申请日：2013-02-06

    Applicant: RF MICRO DEVICES, INC.

    Inventor： Ruediger Bauder ,  Marcus Granger-Jones ,  Nadim Khlat

    IPC: H04L5/14

    CPC classification number: H04L5/14 ,  H03H7/48 ,  H04B1/44 ,  H04B1/525 ,  H04L25/03878

    Abstract: This disclosure includes embodiments of a radio frequency (RF) transceiver having a distributed duplex filtering topology. The RF transceiver includes a power amplifier and a tunable RF duplexer. The tunable RF duplexer is configured to input an RF transmission input signal from the power amplifier, generate an RF transmission output signal that operates within an RF transmission band in response to the RF transmission input signal from the power amplifier, and simultaneously output the RF transmission output signal to an antenna and input an RF receive input signal that operates within an RF receive band from the antenna. The power amplifier includes a plurality of RF amplifier stages coupled in cascode and an RF filter coupled between a first one of the RF amplifier stages and a second one of the RF amplifier stages. Accordingly, the RF filter is configured to provide tuning within the RF receive band.

    Abstract translation: 本公开包括具有分布式双工滤波拓扑的射频（RF）收发器的实施例。 RF收发器包括功率放大器和可调谐RF双工器。 可调RF双工器被配置为从功率放大器输入RF传输输入信号，响应于来自功率放大器的RF传输输入信号产生在RF传输频带内操作的RF传输输出信号，并且同时输出RF传输 输出信号到天线，并输入在RF接收频带内工作的RF接收输入信号。 功率放大器包括耦合在共射共同转换中的多个RF放大器级和耦合在第一个RF放大器级之间的RF滤波器和RF放大器级中的第二个放大器级。 因此，RF滤波器被配置为在RF接收频带内提供调谐。

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