REDUCED BANDWIDTH ENVELOPE TRACKING
    71.
    发明申请
    REDUCED BANDWIDTH ENVELOPE TRACKING 有权
    减少带宽包围跟踪

    公开(公告)号:US20160065137A1

    公开(公告)日:2016-03-03

    申请号:US14836634

    申请日:2015-08-26

    发明人: Nadim Khlat

    IPC分类号: H03F1/02 H04B1/04 H03F3/19

    摘要: Envelope power supply circuitry includes an envelope power converter circuitry and envelope tracking circuitry. The envelope power converter circuitry receives an envelope power converter control signal from the envelope tracking circuitry and a supply voltage and provides an envelope power supply signal for an amplifier based thereon. In a first mode of operation, the envelope power converter control signal is provided such that the envelope power supply signal causes the gain of the amplifier to remain substantially constant over a range of input power provided to the amplifier. In a second mode of operation, the envelope power converter control signal is provided such that the envelope power supply signal remains substantially constant for values within the range of input power below a predetermined threshold, and such that the envelope power supply signal causes the gain of the amplifier to remain substantially constant for other values.

    摘要翻译: 信封电源电路包括一个信封电源转换器电路和信封跟踪电路。 信封功率转换器电路从包络跟踪电路接收包络功率转换器控制信号和电源电压,并且基于此为放大器提供包络电源信号。 在第一操作模式中,提供包络电力转换器控制信号,使得包络电源信号使放大器的增益在提供给放大器的输入功率的范围内保持基本恒定。 在第二操作模式中,提供包络功率转换器控制信号,使得对于在低于预定阈值的输入功率范围内的值,包络电源信号保持基本上恒定,并且使得包络电源信号导致 放大器对于其他值保持基本恒定。

    RADIO FREQUENCY (RF) POWER HARVESTING CIRCUIT
    72.
    发明申请
    RADIO FREQUENCY (RF) POWER HARVESTING CIRCUIT 审中-公开
    无线电频率(RF)电力采集电路

    公开(公告)号:US20160020636A1

    公开(公告)日:2016-01-21

    申请号:US14792891

    申请日:2015-07-07

    发明人: Nadim Khlat

    IPC分类号: H02J7/02 H02J7/04

    CPC分类号: H02J7/025 H02J7/045 H02J50/20

    摘要: Aspects disclosed in the detailed description include a wireless charging circuit comprising a radio frequency (RF) power harvesting circuit. In one aspect, the RF power harvesting circuit is configured to harvest a wireless RF charging signal provided by a wireless charging station to generate a direct-current (DC) charging signal to charge a battery, for example, a lithium-ion (Li-ion) battery, in a battery-operated electronic device. In another aspect, a wireless charging controller controls the RF power harvesting circuit to dynamically increase or decrease an effective charging power of the DC charging signal according to a target charging power determined according to a charging profile of the battery. By dynamically adjusting the effective charging power provided to the battery according to the charging profile of the battery, it is possible to provide fast charging to the battery while protecting the battery from overcharging damage.

    摘要翻译: 在详细描述中公开的方面包括包括射频(RF)功率采集电路的无线充电电路。 在一个方面,RF功率收集电路被配置为收获由无线充电站提供的无线RF充电信号,以产生直流(DC)充电信号,以对电池充电,例如锂离子(Li- 离子)电池,在电池供电的电子设备中。 在另一方面,无线充电控制器控制RF功率采集电路,以根据根据电池的充电曲线确定的目标充电功率来动态地增加或减少直流充电信号的有效充电功率。 通过根据电池的充电曲线动态地调整提供给电池的有效充电电力,可以对电池提供快速充电,同时保护电池免受过度充电损坏。

    VSWR tolerant tunable hybrid duplexer
    73.
    发明授权
    VSWR tolerant tunable hybrid duplexer 有权
    VSWR容限可调混合双工器

    公开(公告)号:US09196945B2

    公开(公告)日:2015-11-24

    申请号:US13904520

    申请日:2013-05-29

    IPC分类号: H01P5/12 H04B1/00 H03H7/18

    CPC分类号: H01P5/12 H04B1/0057

    摘要: 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).

    摘要翻译: 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。

    Tunable duplexer architecture
    75.
    发明授权
    Tunable duplexer architecture 有权
    可调谐双工器架构

    公开(公告)号:US09048805B2

    公开(公告)日:2015-06-02

    申请号:US13633459

    申请日:2012-10-02

    摘要: A tunable radio frequency (RF) duplexer and duplexing methods are disclosed. The tunable RF duplexer includes a first hybrid coupler, a second hybrid coupler, and an RF filter circuit. The first hybrid coupler is operable to split the RF transmission input signal into first and second RF quadrature hybrid transmission signals (QHTSs). The second hybrid coupler is operable to split the RF receive input signal into first and second RF quadrature hybrid receive signals (QHRSs). The RF filter circuit is operable to pass the first and second RF QHTSs to the second hybrid coupler and to reflect the first and second RF QHRSs back to the second hybrid coupler. Additionally, the second hybrid coupler is configured to combine the first and second RF QHTSs into an RF transmission output signal and to combine the first and second RF QHRSs into an RF receive output signal.

    摘要翻译: 公开了可调谐射频(RF)双工器和双工方法。 可调RF双工器包括第一混合耦合器,第二混合耦合器和RF滤波器电路。 第一混合耦合器可操作以将RF传输输入信号分成第一和第二RF正交混合传输信号(QHTS)。 第二混合耦合器可操作以将RF接收输入信号分成第一和第二RF正交混合接收信号(QHRS)。 RF滤波器电路可操作以将第一和第二RF QHTS传递到第二混合耦合器并将第一和第二RF QHRS反射回第二混合耦合器。 此外,第二混合耦合器被配置为将第一和第二RF QHTS组合成RF传输输出信号并且将第一和第二RF QHRS组合成RF接收输出信号。

    Tunable duplexer architecture
    76.
    发明授权
    Tunable duplexer architecture 有权
    可调谐双工器架构

    公开(公告)号:US09042275B2

    公开(公告)日:2015-05-26

    申请号:US13760159

    申请日:2013-02-06

    IPC分类号: H04L5/14 H03H7/48 H04L25/03

    摘要: A tunable radio frequency (RF) duplexer is disclosed. The tunable RF duplexer includes a first hybrid coupler, a second hybrid coupler, and an RF filter circuit. The first hybrid coupler is operable to split an RF receive input signal into first and second RF quadrature hybrid receive signals (QHRSs). The first hybrid coupler is also operable to split an RF transmission input signal into first and second RF quadrature hybrid transmission signals (QHTSs). The RF filter circuit is operable to pass the first and second RF QHRSs to the second hybrid coupler and to reflect the first and second RF QHTSs back to the first hybrid coupler. Additionally, the second hybrid coupler is configured to combine the first and second RF QHRSs into an RF receive output signal, while the first hybrid coupler is configured to combine the first and second RF QHTSs into an RF transmission output signal.

    摘要翻译: 公开了一种可调谐射频(RF)双工器。 可调RF双工器包括第一混合耦合器,第二混合耦合器和RF滤波器电路。 第一混合耦合器可操作以将RF接收输入信号分成第一和第二RF正交混合接收信号(QHRS)。 第一混合耦合器还可操作以将RF传输输入信号分成第一和第二RF正交混合传输信号(QHTS)。 RF滤波器电路可操作以将第一和第二RF QHRS传递到第二混合耦合器并将第一和第二RF QHTS反射回第一混合耦合器。 此外,第二混合耦合器被配置为将第一和第二RF QHRS组合成RF接收输出信号,而第一混合耦合器被配置为将第一和第二RF QHTS组合成RF发射输出信号。

    Multiple mode RF power converter
    77.
    发明授权
    Multiple mode RF power converter 有权
    多模RF功率转换器

    公开(公告)号:US09041365B2

    公开(公告)日:2015-05-26

    申请号:US13747694

    申请日:2013-01-23

    摘要: This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out (LDO) regulation circuit, and an RF filter. The RF filter is coupled to receive a pulsed output voltage from the RF switching converter and a supply voltage from the LDO regulation circuit. The RF filter is operable to alternate between a first RF filter topology and a second RF filter topology. In the first RF filter topology, the RF filter is configured to convert the pulsed output voltage from a switching circuit into the supply voltage. The RF filter in the second RF filter topology is configured to filter the supply voltage from the LDO regulation circuit to reduce a ripple variation in a supply voltage level of the supply voltage. As such, the RF filter provides greater versatility.

    摘要翻译: 本公开涉及射频(RF)功率转换器及其操作方法。 在一个实施例中,RF功率转换器包括RF开关转换器,低压降(LDO)调节电路和RF滤波器。 RF滤波器被耦合以接收来自RF开关转换器的脉冲输出电压和来自LDO调节电路的电源电压。 RF滤波器可操作以在第一RF滤波器拓扑和第二RF滤波器拓扑之间交替。 在第一RF滤波器拓扑中,RF滤波器被配置为将来自开关电路的脉冲输出电压转换成电源电压。 第二RF滤波器拓扑中的RF滤波器被配置为对来自LDO调节电路的电源电压进行滤波,以减少电源电压的电源电压电平中的纹波变化。 因此,RF滤波器提供更大的通用性。

    RF power converter
    78.
    发明授权
    RF power converter 有权
    射频功率转换器

    公开(公告)号:US09041364B2

    公开(公告)日:2015-05-26

    申请号:US13690187

    申请日:2012-11-30

    发明人: Nadim Khlat

    摘要: This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out (LDO) regulation circuit, and an RF filter. The RF filter is coupled to receive a pulsed output voltage from the RF switching converter and a supply voltage from the LDO regulation circuit. The RF filter is operable to alternate between a first RF filter topology and a second RF filter topology. In the first RF filter topology, the RF filter is configured to convert the pulsed output voltage from a switching circuit into the supply voltage. The RF filter in the second RF filter topology is configured to filter the supply voltage from the LDO regulation circuit to reduce a ripple variation in a supply voltage level of the supply voltage. As such, the RF filter provides greater versatility.

    摘要翻译: 本公开涉及射频(RF)功率转换器及其操作方法。 在一个实施例中,RF功率转换器包括RF开关转换器,低压降(LDO)调节电路和RF滤波器。 RF滤波器被耦合以接收来自RF开关转换器的脉冲输出电压和来自LDO调节电路的电源电压。 RF滤波器可操作以在第一RF滤波器拓扑和第二RF滤波器拓扑之间交替。 在第一RF滤波器拓扑中,RF滤波器被配置为将来自开关电路的脉冲输出电压转换成电源电压。 第二RF滤波器拓扑中的RF滤波器被配置为对来自LDO调节电路的电源电压进行滤波,以减少电源电压的电源电压电平中的纹波变化。 因此,RF滤波器提供更大的通用性。

    FREQUENCY SELECTIVE PREDISTORTION
    79.
    发明申请
    FREQUENCY SELECTIVE PREDISTORTION 有权
    频率选择性预测

    公开(公告)号:US20150139359A1

    公开(公告)日:2015-05-21

    申请号:US14548129

    申请日:2014-11-19

    摘要: A baseband PA predistortion module, which includes a baseband combiner, a baseband PA correction circuit, and a baseband filter, is disclosed. The baseband PA correction circuit replicates behavior of an RF PA by processing a modulation data signal to provide a predistortion data signal. The behavior of the RF PA includes distortion. The modulation data signal is representative of an RF input signal to an RF PA and the predistortion data signal is representative of a correction needed at an output of the RF PA. The baseband filter receives and filters the predistortion data signal to provide a reduced predistortion data signal, such that a low frequency content of the reduced predistortion data signal is less than a low frequency content of the predistortion data signal. The baseband combiner receives and combines the modulation data signal and the reduced predistortion data signal to provide a baseband transmit signal.

    摘要翻译: 公开了一种基带PA预失真模块,其包括基带组合器,基带PA校正电路和基带滤波器。 基带PA校正电路通过处理调制数据信号来复制RF PA的行为以提供预失真数据信号。 RF PA的行为包括失真。 调制数据信号表示到RF PA的RF输入信号,并且预失真数据信号表示在RF PA的输出处所需的校正。 基带滤波器接收并过滤预失真数据信号以提供减少的预失真数据信号,使得减少的预失真数据信号的低频内容小于预失真数据信号的低频内容。 基带组合器接收并组合调制数据信号和减少的预失真数据信号以提供基带发射信号。

    CARRIER AGGREGATION USING MULTIPLE ANTENNAS
    80.
    发明申请
    CARRIER AGGREGATION USING MULTIPLE ANTENNAS 有权
    使用多个天线的载波聚合

    公开(公告)号:US20150085708A1

    公开(公告)日:2015-03-26

    申请号:US14497919

    申请日:2014-09-26

    发明人: Nadim Khlat

    摘要: RF front-end circuitry, which includes RF switching and duplexing circuitry, a first RF diplexer, and a second RF diplexer, is disclosed. The RF switching and duplexing circuitry operates in one of a group of RF transmit modes, such that the group of RF transmit modes includes at least one transmit uplink carrier aggregation mode. The RF switching and duplexing circuitry provides at least one RF transmit signal based on the one of the group of RF transmit modes. The first RF diplexer is coupled between the RF switching and duplexing circuitry and a primary RF antenna. The second RF diplexer is coupled between the RF switching and duplexing circuitry and an auxiliary RF antenna.

    摘要翻译: 公开了包括RF切换和双工电路的RF前端电路,第一RF双工器和第二RF双工器。 RF切换和双工电路以一组RF发射模式中的一种工作,使得RF组的RF发射模式包括至少一个发射上行链路载波聚合模式。 RF切换和双工电路基于RF发射模式中的一个提供至少一个RF发射信号。 第一RF双工器耦合在RF开关和双工电路和主RF天线之间。 第二RF双工器耦合在RF开关和双工电路和辅助RF天线之间。