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1. 发明授权

US08059748B2 Multi-mode and multi-band transmitters for wireless communication 有权
标题翻译：用于无线通信的多模和多频发射机
公开(公告)号：US08059748B2
公开(公告)日：2011-11-15
申请号：US11857929
申请日：2007-09-19
申请人： Puay Hoe See , Gurkanwal Singh Sahota , Bo Sun , Gary John Ballantyne , William Ronald Panton , Zae Yong Choi
发明人： Puay Hoe See , Gurkanwal Singh Sahota , Bo Sun , Gary John Ballantyne , William Ronald Panton , Zae Yong Choi
IPC分类号： H04K1/02 , H04B1/04
CPC分类号： H04L27/0008 , H03C3/0916 , H03C3/0975 , H03C5/00 , H03F1/3241 , H03F1/3252 , H04B1/0483 , H04B2001/0425 , H04L27/361 , H04L27/362
摘要： Transmitters supporting multiple modulation modes and/or multiple frequency bands are described. A transmitter may perform large signal polar modulation, small signal polar modulation, and/or quadrature modulation, which may support different modulation schemes and systems. Circuit blocks may be shared by the different modulation modes to reduce cost and power. For example, a single modulator and a single power amplifier may be used for small signal polar modulation and quadrature modulation. The transmitter may apply pre-distortion to improve performance, to allow a power amplifier to support multiple frequency bands, to allow the power amplifier to operate at higher output power levels, etc. Envelope and phase distortions due to non-linearity of the power amplifier may be characterized for different input levels and different bands and stored at the transmitter. Thereafter, envelope and phase signals may be pre-distorted based on the stored characterizations to compensate for non-linearity of the power amplifier.
摘要翻译：描述了支持多个调制模式和/或多个频带的发射机。发射机可以执行可能支持不同调制方案和系统的大信号极性调制，小信号极化调制和/或正交调制。电路块可以由不同的调制模式共享以降低成本和功率。例如，单个调制器和单个功率放大器可以用于小信号极性调制和正交调制。发射机可以应用预失真来提高性能，以允许功率放大器支持多个频带，以允许功率放大器在较高的输出功率电平下工作等。由功率放大器的非线性引起的包络和相位失真可以表征为不同的输入电平和不同的频带并存储在发射机。此后，包络和相位信号可以基于存储的特征来预失真，以补偿功率放大器的非线性。

2. 发明申请

US20090074106A1 MULTI-MODE AND MULTI-BAND TRANSMITTERS FOR WIRELESS COMMUNICATION 有权
标题翻译：用于无线通信的多模和多带发射机
公开(公告)号：US20090074106A1
公开(公告)日：2009-03-19
申请号：US11857929
申请日：2007-09-19
申请人： Puay Hoe See , Gurkanwal Singh Sahota , Bo Sun , Gary John Ballantyne , William Ronald Panton , Zae Yong Choi
发明人： Puay Hoe See , Gurkanwal Singh Sahota , Bo Sun , Gary John Ballantyne , William Ronald Panton , Zae Yong Choi
IPC分类号： H04L27/36 , H04L25/49
CPC分类号： H04L27/0008 , H03C3/0916 , H03C3/0975 , H03C5/00 , H03F1/3241 , H03F1/3252 , H04B1/0483 , H04B2001/0425 , H04L27/361 , H04L27/362
摘要： Transmitters supporting multiple modulation modes and/or multiple frequency bands are described. A transmitter may perform large signal polar modulation, small signal polar modulation, and/or quadrature modulation, which may support different modulation schemes and systems. Circuit blocks may be shared by the different modulation modes to reduce cost and power. For example, a single modulator and a single power amplifier may be used for small signal polar modulation and quadrature modulation. The transmitter may apply pre-distortion to improve performance, to allow a power amplifier to support multiple frequency bands, to allow the power amplifier to operate at higher output power levels, etc. Envelope and phase distortions due to non-linearity of the power amplifier may be characterized for different input levels and different bands and stored at the transmitter. Thereafter, envelope and phase signals may be pre-distorted based on the stored characterizations to compensate for non-linearity of the power amplifier.
摘要翻译：描述了支持多个调制模式和/或多个频带的发射机。发射机可以执行可能支持不同调制方案和系统的大信号极性调制，小信号极化调制和/或正交调制。电路块可以由不同的调制模式共享以降低成本和功率。例如，单个调制器和单个功率放大器可用于小信号极性调制和正交调制。发射机可以应用预失真来提高性能，以允许功率放大器支持多个频带，以允许功率放大器在较高的输出功率电平下工作等。由功率放大器的非线性引起的包络和相位失真可以表征为不同的输入电平和不同的频带并存储在发射机。此后，包络和相位信号可以基于存储的特征来预失真，以补偿功率放大器的非线性。

3. 发明授权

US08963611B2 Power and impedance measurement circuits for a wireless communication device 有权
标题翻译：用于无线通信设备的功率和阻抗测量电路
公开(公告)号：US08963611B2
公开(公告)日：2015-02-24
申请号：US12580988
申请日：2009-10-16
申请人： Puay Hoe See , Gary J. Ballantyne , Gurkanwal Singh Sahota , Aristotele Hadjichristos , Alberto Cicalini
发明人： Puay Hoe See , Gary J. Ballantyne , Gurkanwal Singh Sahota , Aristotele Hadjichristos , Alberto Cicalini
IPC分类号： G06G7/16
CPC分类号： H04B1/0458 , H03H7/40
摘要： Exemplary embodiments disclosed are directed to power and impedance measurement circuits that may be used to measure power and/or impedance are described. A measurement circuit may include a sensor and a computation unit. The sensor may sense (i) a first voltage signal across a series circuit coupled to a load to obtain a first sensed signal and (ii) a second voltage signal at a designated end of the series circuit to obtain a second sensed signal. The sensor may mix (i) a first version of the first sensed signal with a first version of the second sensed signal to obtain a first sensor output and (ii) a second version of the first sensed signal with a second version of the second sensed signal to obtain a second sensor output. The computation unit may determine the impedance and/or delivered power at the designated end of the series circuit based on the sensor outputs.
摘要翻译：所公开的示例性实施例涉及可用于测量功率和/或阻抗的功率和阻抗测量电路。测量电路可以包括传感器和计算单元。传感器可以感测（i）跨耦合到负载的串联电路的第一电压信号以获得第一感测信号，以及（ii）串联电路的指定端的第二电压信号以获得第二感测信号。传感器可以将（i）第一感测信号的第一版本与第二感测信号的第一版本混合以获得第一传感器输出，以及（ii）第一感测信号的第二版本，具有第二感测的第二版本信号以获得第二传感器输出。计算单元可以基于传感器输出来确定串联电路的指定端处的阻抗和/或传递功率。

4. 发明申请

US20100321086A1 POWER AND IMPEDANCE MEASUREMENT CIRCUITS FOR A WIRELESS COMMUNICATION DEVICE 有权
标题翻译：无线通信设备的功率和阻抗测量电路
公开(公告)号：US20100321086A1
公开(公告)日：2010-12-23
申请号：US12580988
申请日：2009-10-16
申请人： Puay Hoe See , Gary J. Ballantyne , Gurkanwal Singh Sahota , Aristotele Hadjichristos , Alberto Cicalini
发明人： Puay Hoe See , Gary J. Ballantyne , Gurkanwal Singh Sahota , Aristotele Hadjichristos , Alberto Cicalini
IPC分类号： G06F7/44
CPC分类号： H04B1/0458 , H03H7/40
摘要： Exemplary embodiments disclosed are directed to power and impedance measurement circuits that may be used to measure power and/or impedance are described. A measurement circuit may include a sensor and a computation unit. The sensor may sense (i) a first voltage signal across a series circuit coupled to a load to obtain a first sensed signal and (ii) a second voltage signal at a designated end of the series circuit to obtain a second sensed signal. The sensor may mix (i) a first version of the first sensed signal with a first version of the second sensed signal to obtain a first sensor output and (ii) a second version of the first sensed signal with a second version of the second sensed signal to obtain a second sensor output. The computation unit may determine the impedance and/or delivered power at the designated end of the series circuit based on the sensor outputs.
摘要翻译：所公开的示例性实施例涉及可用于测量功率和/或阻抗的功率和阻抗测量电路。测量电路可以包括传感器和计算单元。传感器可以感测（i）跨耦合到负载的串联电路的第一电压信号以获得第一感测信号，以及（ii）串联电路的指定端的第二电压信号以获得第二感测信号。传感器可以将（i）第一感测信号的第一版本与第二感测信号的第一版本混合以获得第一传感器输出，以及（ii）第一感测信号的第二版本，具有第二感测的第二版本信号以获得第二传感器输出。计算单元可以基于传感器输出来确定串联电路的指定端处的阻抗和/或传递功率。

5. 发明授权

US09143172B2 Tunable matching circuits for power amplifiers 有权
标题翻译：功率放大器的可调匹配电路
公开(公告)号：US09143172B2
公开(公告)日：2015-09-22
申请号：US12544177
申请日：2009-08-19
申请人： Puay Hoe See , Aristotele Hadjichristos , Gurkanwal Singh Sahota
发明人： Puay Hoe See , Aristotele Hadjichristos , Gurkanwal Singh Sahota
IPC分类号： H03F3/04 , H04B1/04 , H03F1/56 , H03F3/24 , H03F3/72
CPC分类号： H04B1/0458 , H03F1/565 , H03F3/24 , H03F3/72 , H03F2200/111 , H03F2200/378 , H03F2200/387 , H03F2203/7209
摘要： Tunable matching circuits for power amplifiers are described. In an exemplary design, an apparatus may include a power amplifier and a tunable matching circuit. The power amplifier may amplify an input RF signal and provide an amplified RF signal. The tunable matching circuit may provide output impedance matching for the power amplifier, may receive the amplified RF signal and provide an output RF signal, and may be tunable based on at least one parameter effecting the operation of the power amplifier. The parameter(s) may include an envelope signal for the amplified RF signal, an average output power level of the output RF signal, a power supply voltage for the power amplifier, IC process variations, etc. The tunable matching circuit may include a series variable capacitor and/or a shunt variable capacitor. Each variable capacitor may be tunable based on a control generated based on the parameter(s).
摘要翻译：描述了用于功率放大器的可调谐匹配电路。在示例性设计中，设备可以包括功率放大器和可调谐匹配电路。功率放大器可以放大输入RF信号并提供放大的RF信号。可调谐匹配电路可以为功率放大器提供输出阻抗匹配，可以接收放大的RF信号并提供输出RF信号，并且可以基于影响功率放大器的操作的至少一个参数来调节。参数可以包括放大的RF信号的包络信号，输出RF信号的平均输出功率电平，功率放大器的电源电压，IC过程变化等。可调谐匹配电路可以包括一系列可变电容器和/或分流可变电容器。每个可变电容器可以基于基于参数产生的控制来调节。

6. 发明申请

US20100308933A1 TUNABLE MATCHING CIRCUITS FOR POWER AMPLIFIERS 有权
标题翻译：功率放大器的可调匹配电路
公开(公告)号：US20100308933A1
公开(公告)日：2010-12-09
申请号：US12544177
申请日：2009-08-19
申请人： Puay Hoe See , Aristotele Hadjichristos , Gurkanwal Singh Sahota
发明人： Puay Hoe See , Aristotele Hadjichristos , Gurkanwal Singh Sahota
IPC分类号： H03H7/38
CPC分类号： H04B1/0458 , H03F1/565 , H03F3/24 , H03F3/72 , H03F2200/111 , H03F2200/378 , H03F2200/387 , H03F2203/7209
摘要： Tunable matching circuits for power amplifiers are described. In an exemplary design, an apparatus may include a power amplifier and a tunable matching circuit. The power amplifier may amplify an input RF signal and provide an amplified RF signal. The tunable matching circuit may provide output impedance matching for the power amplifier, may receive the amplified RF signal and provide an output RF signal, and may be tunable based on at least one parameter effecting the operation of the power amplifier. The parameter(s) may include an envelope signal for the amplified RF signal, an average output power level of the output RF signal, a power supply voltage for the power amplifier, IC process variations, etc. The tunable matching circuit may include a series variable capacitor and/or a shunt variable capacitor. Each variable capacitor may be tunable based on a control generated based on the parameter(s).
摘要翻译：描述了用于功率放大器的可调谐匹配电路。在示例性设计中，设备可以包括功率放大器和可调谐匹配电路。功率放大器可以放大输入RF信号并提供放大的RF信号。可调谐匹配电路可以为功率放大器提供输出阻抗匹配，可以接收放大的RF信号并提供输出RF信号，并且可以基于影响功率放大器的操作的至少一个参数来调节。参数可以包括放大的RF信号的包络信号，输出RF信号的平均输出功率电平，功率放大器的电源电压，IC过程变化等。可调谐匹配电路可以包括一系列可变电容器和/或分流可变电容器。每个可变电容器可以基于基于参数产生的控制来调节。

7. 发明申请

US20100291888A1 MULTI-MODE MULTI-BAND POWER AMPLIFIER MODULE 有权
标题翻译：多模多功率放大器模块
公开(公告)号：US20100291888A1
公开(公告)日：2010-11-18
申请号：US12575414
申请日：2009-10-07
申请人： Aristotele Hadjichristos , Puay Hoe See , Babak Nejati , Guy Klemens , Norman Frederick, JR. , Gurkanwal Singh Sahota , Marco Cassia , Nathan Pletcher , Yu Zhao , Thomas Myers
发明人： Aristotele Hadjichristos , Puay Hoe See , Babak Nejati , Guy Klemens , Norman Frederick, JR. , Gurkanwal Singh Sahota , Marco Cassia , Nathan Pletcher , Yu Zhao , Thomas Myers
IPC分类号： H04B1/04
CPC分类号： H04B1/0458 , H03F1/0277 , H03F3/24 , H03F3/72 , H03F2203/7236 , H04B1/0483
摘要： A multi-mode multi-band power amplifier (PA) module is described. In an exemplary design, the PA module includes multiple power amplifiers, multiple matching circuits, and a set of switches. Each power amplifier provides power amplification for its input signal when selected. Each matching circuit provides impedance matching and filtering for its power amplifier and provides a respective output signal. The switches configure the power amplifiers to support multiple modes, with each mode being for a particular radio technology. Each power amplifier supports at least two modes. The PA module may further include a driver amplifier and an additional matching circuit. The driver amplifier amplifies an input signal and provides an amplified signal to the power amplifiers. The additional matching circuit combines the outputs of other matching circuits and provides an output signal with higher output power. The driver amplifier and the power amplifiers can support multiple output power levels.
摘要翻译：描述了多模式多频带功率放大器（PA）模块。在示例性设计中，PA模块包括多个功率放大器，多个匹配电路和一组开关。每个功率放大器在选择时为其输入信号提供功率放大。每个匹配电路为其功率放大器提供阻抗匹配和滤波，并提供相应的输出信号。这些开关配置功率放大器以支持多种模式，每种模式都适用于特定的无线电技术。每个功率放大器至少支持两种模式。 PA模块还可以包括驱动器放大器和附加匹配电路。驱动器放大器放大输入信号并向功率放大器提供放大的信号。附加匹配电路组合其他匹配电路的输出，并提供具有较高输出功率的输出信号。驱动器放大器和功率放大器可以支持多个输出功率电平。

8. 发明申请

US20090138226A1 SYSTEMS AND METHODS FOR MEASURING NON-LINEAR CHARACTERISTICS OF A POWER AMPLIFIER 失效
标题翻译：用于测量功率放大器非线性特性的系统和方法
公开(公告)号：US20090138226A1
公开(公告)日：2009-05-28
申请号：US12108302
申请日：2008-04-23
申请人： Revathi Sundara Raghavan , Puay Hoe See , Rema Vaidyanathan , Richard M. Schierbeck, II , Sudarsan Krishnan , Zae Yong Choi
发明人： Revathi Sundara Raghavan , Puay Hoe See , Rema Vaidyanathan , Richard M. Schierbeck, II , Sudarsan Krishnan , Zae Yong Choi
IPC分类号： G01R35/00
CPC分类号： H03F1/3241 , H03F1/3282 , H03F3/24 , H03F2200/321 , H03F2200/451 , H04B17/13 , H04B17/21
摘要： A method for measuring non-linear characteristics of a power amplifier is described. A calibration waveform is calculated during a testing procedure period. Amplitude characteristics of the calibration waveform at the output of the power amplifier are measured during the testing procedure period. Phase characteristics of the calibration waveform at the output of the power amplifier are measured during the testing procedure period. Pre-distortion techniques are configured based on the amplitude characteristics and the phase characteristics to be used during a normal operation period of a transmitter.
摘要翻译：描述了用于测量功率放大器的非线性特性的方法。在测试过程期间计算校准波形。在测试过程期间测量功率放大器输出端的校准波形的幅度特性。在测试过程期间测量功率放大器输出端的校准波形的相位特性。基于在发射机的正常操作期间要使用的振幅特性和相位特性配置预失真技术。

9. 发明授权

US08170819B2 Systems and methods for measuring non-linear characteristics of a power amplifier 失效
标题翻译：用于测量功率放大器的非线性特性的系统和方法
公开(公告)号：US08170819B2
公开(公告)日：2012-05-01
申请号：US12108302
申请日：2008-04-23
申请人： Revathi Sundara Raghavan , Puay Hoe See , Rema Vaidyanathan , Richard M. Schierbeck, II , Sudarsan Krishnan , Zae Yong Choi
发明人： Revathi Sundara Raghavan , Puay Hoe See , Rema Vaidyanathan , Richard M. Schierbeck, II , Sudarsan Krishnan , Zae Yong Choi
IPC分类号： G01R13/00 , G01R23/00 , H04B1/04
CPC分类号： H03F1/3241 , H03F1/3282 , H03F3/24 , H03F2200/321 , H03F2200/451 , H04B17/13 , H04B17/21
摘要： A method for measuring non-linear characteristics of a power amplifier is described. A calibration waveform is calculated during a testing procedure period. Amplitude characteristics of the calibration waveform at the output of the power amplifier are measured during the testing procedure period. Phase characteristics of the calibration waveform at the output of the power amplifier are measured during the testing procedure period. Pre-distortion techniques are configured based on the amplitude characteristics and the phase characteristics to be used during a normal operation period of a transmitter.
摘要翻译：描述了用于测量功率放大器的非线性特性的方法。在测试过程期间计算校准波形。在测试过程期间测量功率放大器输出端的校准波形的幅度特性。在测试过程期间测量功率放大器输出端的校准波形的相位特性。基于在发射机的正常操作期间要使用的振幅特性和相位特性配置预失真技术。

10. 发明授权

US07974317B2 Systems and methods for controlling the voltage of signals used to control power amplifiers 有权
标题翻译：用于控制用于控制功率放大器的信号电压的系统和方法
公开(公告)号：US07974317B2
公开(公告)日：2011-07-05
申请号：US12133758
申请日：2008-06-05
申请人： David Maldonado , Puay Hoe See , Bo Sun , Guang Zhang , Brett C. Walker
发明人： David Maldonado , Puay Hoe See , Bo Sun , Guang Zhang , Brett C. Walker
IPC分类号： H04J3/04
CPC分类号： H04B1/0483 , H04B1/40 , H04B2001/0416
摘要： A method for controlling the voltage of signals used to control power amplifiers is described. A first multiplexer and a second multiplexer are set to an enabling signal. The first multiplexer is on a first integrated circuit and the second multiplexer is on a second integrated circuit. A command is written to the first multiplexer to set the first multiplexer to one of a plurality of control signals used to control a power amplifier. A command is written to the second multiplexer to select one of the plurality of control signals that maps to the first multiplexer. The second integrated circuit is connected to a power supply.
摘要翻译：描述了用于控制用于控制功率放大器的信号的电压的方法。第一多路复用器和第二多路复用器被设置为使能信号。第一多路复用器在第一集成电路上，第二多路复用器在第二集成电路上。一个命令被写入到第一多路复用器中，以将第一多路复用器设置成用于控制功率放大器的多个控制信号之一。一个命令被写入第二多路复用器以选择映射到第一多路复用器的多个控制信号之一。第二集成电路连接到电源。

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