公开(公告)号：US20050242875A1

公开(公告)日：2005-11-03

申请号：US11081384

申请日：2005-03-16

申请人： Mark Gurvich ,  Ahmad Khanifar ,  Nikolai Maslennikov ,  Alexander Rabinovich

发明人： Mark Gurvich ,  Ahmad Khanifar ,  Nikolai Maslennikov ,  Alexander Rabinovich

IPC分类号： H03F1/02 ,  H03F1/32 ,  H03G3/20 ,  H03G3/30

CPC分类号： H03F1/32 ,  H03F1/0211 ,  H03F1/0222 ,  H03F1/0244 ,  H03G3/3042 ,  H03G2201/106 ,  H03G2201/206 ,  H03G2201/307

摘要： A high efficiency radio frequency (RF) power amplifier having dynamically controlled back off is disclosed. The RF input voltage is sampled by an adaptive analog signal processing circuit. The adaptive analog signal processing circuit controls the supply voltage to RF amplifier devices, such as LDMOS devices, which varies the efficiency or back off of the power amplifier. The variable supply voltage in turn varies peak power of the amplifier.

摘要翻译： 公开了具有动态控制的退避的高效率射频（RF）功率放大器。 RF输入电压由自适应模拟信号处理电路采样。 自适应模拟信号处理电路控制对诸如LDMOS器件的RF放大器器件的电源电压，这些器件改变功率放大器的效率或退避。 可变电源电压又会改变放大器的峰值功率。

公开(公告)号：US07339426B2

公开(公告)日：2008-03-04

申请号：US11081384

申请日：2005-03-16

申请人： Mark Gurvich ,  Ahmad Khanifar ,  Nikolai Maslennikov ,  Alexander Rabinovich

发明人： Mark Gurvich ,  Ahmad Khanifar ,  Nikolai Maslennikov ,  Alexander Rabinovich

IPC分类号： H03G3/30

CPC分类号： H03F1/32 ,  H03F1/0211 ,  H03F1/0222 ,  H03F1/0244 ,  H03G3/3042 ,  H03G2201/106 ,  H03G2201/206 ,  H03G2201/307

摘要： A high efficiency radio frequency (RF) power amplifier having dynamically controlled back off is disclosed. The RF input voltage is sampled by an adaptive analog signal processing circuit. The adaptive analog signal processing circuit controls the supply voltage to RF amplifier devices, such as LDMOS devices, which varies the efficiency or back off of the power amplifier. The variable supply voltage in turn varies peak power of the amplifier.

摘要翻译： 公开了具有动态控制的退避的高效率射频（RF）功率放大器。 RF输入电压由自适应模拟信号处理电路采样。 自适应模拟信号处理电路控制对诸如LDMOS器件的RF放大器器件的电源电压，这些器件改变功率放大器的效率或退避。 可变电源电压又会改变放大器的峰值功率。

公开(公告)号：US06937094B2

公开(公告)日：2005-08-30

申请号：US10386013

申请日：2003-03-11

申请人： Ahmad Khanifar ,  Nikolai Maslennikov ,  Mark Gurvich ,  Bill Vassilakis

发明人： Ahmad Khanifar ,  Nikolai Maslennikov ,  Mark Gurvich ,  Bill Vassilakis

IPC分类号： H03F1/02 ,  H03F1/30 ,  H03F1/32 ,  H03G3/00 ,  H03G3/20

CPC分类号： H03F1/3229 ,  H03F1/0244 ,  H03F1/301 ,  H03G3/004

摘要： A dynamic bias switching circuit is provided that includes a switching unit for switching between a first signal level and a second signal level based on a signal envelope of an input signal to an amplifier.

摘要翻译： 提供了一种动态偏置开关电路，其包括用于基于输入信号到放大器的信号包络在第一信号电平和第二信号电平之间切换的开关单元。

公开(公告)号：US20050062532A1

公开(公告)日：2005-03-24

申请号：US10668912

申请日：2003-09-23

申请人： Mark Gurvich ,  Nikolai Maslennikov ,  Alexander Rabinovich ,  Bill Vassilakis

发明人： Mark Gurvich ,  Nikolai Maslennikov ,  Alexander Rabinovich ,  Bill Vassilakis

IPC分类号： H03F20060101 ,  H03F1/00 ,  H03F1/32 ,  H03F3/189

CPC分类号： H03F1/3229 ,  H03F1/3223 ,  H03F3/189 ,  H03F2201/3212

摘要： A method for aligning a feed forward radio frequency power amplifier includes applying a radio frequency signal to the feed forward radio frequency power amplifier and monitoring a radio frequency signal from the feed forward radio frequency power amplifier, without opening a break point of the feed forward radio frequency amplifier.

摘要翻译： 用于对准前馈射频功率放大器的方法包括将射频信号施加到前馈射频功率放大器，并且监视来自前馈射频功率放大器的射频信号，而不打开前馈无线电的断点 频率放大器。

公开(公告)号：US07440733B2

公开(公告)日：2008-10-21

申请号：US11087225

申请日：2005-03-23

申请人： Nikolai Maslennikov ,  Mark Gurvich ,  Alexander Rabinovich

发明人： Nikolai Maslennikov ,  Mark Gurvich ,  Alexander Rabinovich

IPC分类号： H04B1/04 ,  H04Q7/20

CPC分类号： H03F1/0227 ,  H03F1/02 ,  H03F1/32 ,  H03F3/24 ,  H03F2200/102 ,  H03G3/004 ,  H04B1/0483 ,  H04B2001/045

摘要： An envelope tracking radio frequency (RF) power amplifier having an adaptive envelope signal processing circuit is disclosed. An RF input voltage is sampled by the adaptive envelope signal processing circuit which provides control signals to the power supply which supplies voltages to RF power devices in order to simultaneously satisfy two operating conditions: a) provide best possible efficiency of the power amplifier stages depending on the input signal characteristics and b) provide compensation for RF transistor AM-AM and AM-PM distortion compensation across the power range. In particular, the voltage control provides for constant power amplifier gain across the input signal dynamic range, thus minimizing power amplifier amplitude distortions and extending the useful power amplifier linear dynamic range up to saturation point. The power amplifier thus exhibits better linearity and efficiency than offered by conventional techniques and topologies.

摘要翻译： 公开了具有自适应包络信号处理电路的包络跟踪射频（RF）功率放大器。 RF输入电压由自适应包络信号处理电路采样，该电路向向RF功率器件提供电压的电源提供控制信号，以便同时满足两个工作条件：a）提供功率放大器级的最佳可能效率，这取决于 输入信号特性和b）在功率范围内为射频晶体管AM-AM和AM-PM失真补偿提供补偿。 特别地，电压控制在输入信号动态范围内提供恒定的功率放大器增益，从而最小化功率放大器幅度失真并将有用的功率放大器线性动态范围扩展到饱和点。 因此，功率放大器比常规技术和拓扑结构提供更好的线性度和效率。

公开(公告)号：US07126421B2

公开(公告)日：2006-10-24

申请号：US10668912

申请日：2003-09-23

申请人： Mark Gurvich ,  Nikolai Maslennikov ,  Alexander Rabinovich ,  Bill Vassilakis

发明人： Mark Gurvich ,  Nikolai Maslennikov ,  Alexander Rabinovich ,  Bill Vassilakis

IPC分类号： H03F1/00

CPC分类号： H03F1/3229 ,  H03F1/3223 ,  H03F3/189 ,  H03F2201/3212

摘要： A method for aligning a feed forward radio frequency power amplifier includes applying a radio frequency signal to the feed forward radio frequency power amplifier and monitoring a radio frequency signal from the feed forward radio frequency power amplifier, without opening a break point of the feed forward radio frequency amplifier.

摘要翻译： 用于对准前馈射频功率放大器的方法包括将射频信号施加到前馈射频功率放大器，并且监视来自前馈射频功率放大器的射频信号，而不打开前馈无线电的断点 频率放大器。

公开(公告)号：US20050227644A1

公开(公告)日：2005-10-13

申请号：US11087225

申请日：2005-03-23

申请人： Nikolai Maslennikov ,  Mark Gurvich ,  Alexander Rabinovich

发明人： Nikolai Maslennikov ,  Mark Gurvich ,  Alexander Rabinovich

IPC分类号： H01Q11/12 ,  H03F1/00 ,  H03F1/02 ,  H03F1/32 ,  H03G3/00 ,  H04B1/04

CPC分类号： H03F1/0227 ,  H03F1/02 ,  H03F1/32 ,  H03F3/24 ,  H03F2200/102 ,  H03G3/004 ,  H04B1/0483 ,  H04B2001/045

摘要： An envelope tracking radio frequency (RF) power amplifier having an adaptive envelope signal processing circuit is disclosed. An RF input voltage is sampled by the adaptive envelope signal processing circuit which provides control signals to the power supply which supplies voltages to RF power devices in order to simultaneously satisfy two operating conditions: a) provide best possible efficiency of the power amplifier stages depending on the input signal characteristics and b) provide compensation for RF transistor AM-AM and AM-PM distortion compensation across the power range. In particular, the voltage control provides for constant power amplifier gain across the input signal dynamic range, thus minimizing power amplifier amplitude distortions and extending the useful power amplifier linear dynamic range up to saturation point. The power amplifier thus exhibits better linearity and efficiency than offered by conventional techniques and topologies.

摘要翻译： 公开了具有自适应包络信号处理电路的包络跟踪射频（RF）功率放大器。 RF输入电压由自适应包络信号处理电路采样，该电路向向RF功率器件提供电压的电源提供控制信号，以便同时满足两个工作条件：a）提供功率放大器级的最佳可能效率，这取决于 输入信号特性和b）在功率范围内为射频晶体管AM-AM和AM-PM失真补偿提供补偿。 特别地，电压控制在输入信号动态范围内提供恒定的功率放大器增益，从而最小化功率放大器幅度失真并将有用的功率放大器线性动态范围扩展到饱和点。 因此，功率放大器比常规技术和拓扑结构提供更好的线性度和效率。

公开(公告)号：US07049907B2

公开(公告)日：2006-05-23

申请号：US10805634

申请日：2004-03-19

申请人： Mark Gurvich ,  Alex Rabinovich ,  Nikolai Maslennikov ,  Jianqing He

发明人： Mark Gurvich ,  Alex Rabinovich ,  Nikolai Maslennikov ,  Jianqing He

IPC分类号： H01P9/00

CPC分类号： H03F1/3229

摘要： A group delay adjusting circuit. The group delay adjusting circuit comprises an electronically adjustable variable capacitance, and an electronically variable virtual inductor coupled in parallel to the electronically variable capacitance at a node.

公开(公告)号：US06850115B2

公开(公告)日：2005-02-01

申请号：US10633984

申请日：2003-08-04

申请人： Mark Gurvich ,  Nikolai Maslennikov

发明人： Mark Gurvich ,  Nikolai Maslennikov

IPC分类号： H03F1/02 ,  H03F1/26 ,  H03F1/32 ,  H03F1/00

CPC分类号： H03F1/3247 ,  H03F1/0266 ,  H03F1/26 ,  H03F1/3223 ,  H03F1/3229 ,  H03F2200/102

摘要： A feed forward amplifier employing high efficiency main and/or error amplifiers with amplifier devices biased in a lower bias class. Small signal nonlinearities in the gain response of the amplifier devices are compensated by a small signal gain adjustment circuit. The resulting gain response is substantially linear over the entire usable range of RF input power.

摘要翻译： 一种使用高效率主放大器和/或误差放大器的前馈放大器，其放大器器件偏置在较低的偏置等级。 放大器器件的增益响应中的小信号非线性由小信号增益调整电路补偿。 所得增益响应在RF输入功率的整个可用范围内基本上是线性的。

公开(公告)号：US06897724B2

公开(公告)日：2005-05-24

申请号：US10805666

申请日：2004-03-19

申请人： Mark Gurvich ,  Alex Rabinovich ,  Nikolai Maslennikov ,  Jianqing He

发明人： Mark Gurvich ,  Alex Rabinovich ,  Nikolai Maslennikov ,  Jianqing He

IPC分类号： H03F1/32 ,  H03F1/00

CPC分类号： H03F1/3229

摘要： A group delay adjusting circuit. The group delay adjusting circuit comprises an electronically adjustable variable capacitance, and an electronically variable virtual inductor coupled in parallel to the electronically variable capacitance at a node.

摘要翻译： 组延时调整电路。 组延迟调整电路包括电子可调可变电容，以及与节点处的电可变电容并联耦合的电可变虚拟电感器。