公开(公告)号：US20100073084A1

公开(公告)日：2010-03-25

申请号：US12563710

申请日：2009-09-21

申请人： Joonhoi Hur ,  Kwan-Woo Kim ,  Kyutae Lim ,  Chang-Ho Lee ,  Haksun Kim ,  Joy Laskar

发明人： Joonhoi Hur ,  Kwan-Woo Kim ,  Kyutae Lim ,  Chang-Ho Lee ,  Haksun Kim ,  Joy Laskar

IPC分类号： H03F3/68

CPC分类号： H03F1/0294 ,  H03F1/025 ,  H03F1/3241 ,  H03F3/191 ,  H03F3/24

摘要： Systems and methods may be provided for a LINC system having a level-shifting LINC amplifier. The systems and methods may include a dynamic power supply that is adjustable to provide at least a first voltage supply level and a second voltage supply level higher than the first voltage supply level; a first power amplifier that amplifies a first component signal to generate a first amplified signal; a second power amplifier that amplifiers a second component signal to generate a second amplified signal, where the first component signal and the second component signal are components of an original signal, where the first component signal and the second component signal each have a constant envelope, and where the original signal has a non-constant envelope, and where the first and second power amplifiers are biased at the first voltage supply level or the second voltage supply level based upon an analysis of an amplitude of the original signal.

摘要翻译： 可以为具有电平移位LINC放大器的LINC系统提供系统和方法。 系统和方法可以包括动态电源，其可调节以提供高于第一电压供应电平的至少第一电压供应电平和第二电压供应电平; 第一功率放大器，其放大第一分量信号以产生第一放大信号; 第二功率放大器，放大第二分量信号以产生第二放大信号，其中第一分量信号和第二分量信号是原始信号的分量，其中第一分量信号和第二分量信号各自具有恒定的包络线， 并且其中原始信号具有非恒定包络，并且其中基于原始信号的幅度的分析，第一和第二功率放大器被偏置在第一电压供应电平或第二电压供应电平。

公开(公告)号：US20120286868A1

公开(公告)日：2012-11-15

申请号：US13106611

申请日：2011-05-12

申请人： Baher Haroun ,  Joonhoi Hur ,  Lei Ding ,  Rahmi Hezar

发明人： Baher Haroun ,  Joonhoi Hur ,  Lei Ding ,  Rahmi Hezar

IPC分类号： H03F3/217

CPC分类号： H03F3/2173 ,  H03F1/26 ,  H03F2200/267 ,  H03F2200/297

摘要： A class D power amplifier (PA) is provided. The PA generally comprises a driver, output capacitor, a matching network, and a cancellation circuit. The driver has an input, an output, and a parasitic capacitance, and the input of the driver is configured to receive complementary first and second radio frequency (RF) signals, where there is a free-fly interval between consecutive pulses from the first and second RF signals. The output capacitor and cancellation circuit are each coupled to the output of the driver such that the cancellation circuit provides harmonic restoration at least during the free-fly interval, and the matching network is coupled to the output capacitor.

摘要翻译： 提供D类功率放大器（PA）。 PA通常包括驱动器，输出电容器，匹配网络和消除电路。 驱动器具有输入，输出和寄生电容，并且驱动器的输入被配置为接收互补的第一和第二射频（RF）信号，其中在来自第一和第二射频的连续脉冲之间存在自由间隔 第二RF信号。 输出电容器和消除电路各自耦合到驱动器的输出，使得消除电路至少在空闲间隔期间提供谐波恢复，并且匹配网络耦合到输出电容器。

公开(公告)号：US08519791B1

公开(公告)日：2013-08-27

申请号：US13416841

申请日：2012-03-09

申请人： Joonhoi Hur ,  Lei Ding ,  Rahmi Hezar ,  Baher S. Haroun

发明人： Joonhoi Hur ,  Lei Ding ,  Rahmi Hezar ,  Baher S. Haroun

IPC分类号： H03F3/217

CPC分类号： H03F3/2173 ,  H03F1/56 ,  H03F2200/387

摘要： A method is provided. A first enable signal is asserted so as to enable a first driver, where the first driver has a first output and a first parasitic capacitance. A second enable signal is asserted so as to enable a second driver, where the second driver has a second output and a second parasitic capacitance. The first and second outputs are coupled together by a switching network when the second driver is enabled. Pulses from complementary first and second radio frequency (RF) signals are applied to the first driver, where there is a first set of free-fly intervals between consecutive pulses from the first and second RF signals, and pulses from complementary third and fourth RF signals are applied to the second driver, wherein there is a second set of free-fly interval between consecutive pulses from the third and fourth RF signals.

摘要翻译： 提供了一种方法。 第一使能信号被确定为使第一驱动器能够使第一驱动器具有第一输出和第一寄生电容。 第二使能信号被确定为使第二驱动器能够启动，其中第二驱动器具有第二输出和第二寄生电容。 当第二驱动器被使能时，第一和第二输出由交换网络耦合在一起。 来自互补第一和第二射频（RF）信号的脉冲被施加到第一驱动器，其中在来自第一和第二RF信号的连续脉冲之间存在第一组自由飞行间隔，以及来自互补的第三和第四RF信号的脉冲 被施加到第二驱动器，其中在来自第三和第四RF信号的连续脉冲之间存在第二组自由间隔。

公开(公告)号：US08373504B2

公开(公告)日：2013-02-12

申请号：US13106611

申请日：2011-05-12

申请人： Baher Haroun ,  Joonhoi Hur ,  Lei Ding ,  Rahmi Hezar

发明人： Baher Haroun ,  Joonhoi Hur ,  Lei Ding ,  Rahmi Hezar

IPC分类号： H03F3/217

CPC分类号： H03F3/2173 ,  H03F1/26 ,  H03F2200/267 ,  H03F2200/297

摘要： A class D power amplifier (PA) is provided. The PA generally comprises a driver, output capacitor, a matching network, and a cancellation circuit. The driver has an input, an output, and a parasitic capacitance, and the input of the driver is configured to receive complementary first and second radio frequency (RF) signals, where there is a free-fly interval between consecutive pulses from the first and second RF signals. The output capacitor and cancellation circuit are each coupled to the output of the driver such that the cancellation circuit provides harmonic restoration at least during the free-fly interval, and the matching network is coupled to the output capacitor.

摘要翻译： 提供D类功率放大器（PA）。 PA通常包括驱动器，输出电容器，匹配网络和消除电路。 驱动器具有输入，输出和寄生电容，并且驱动器的输入被配置为接收互补的第一和第二射频（RF）信号，其中在来自第一和第二射频的连续脉冲之间存在自由间隔 第二RF信号。 输出电容器和消除电路各自耦合到驱动器的输出，使得消除电路至少在空闲间隔期间提供谐波恢复，并且匹配网络耦合到输出电容器。

公开(公告)号：US08831085B2

公开(公告)日：2014-09-09

申请号：US13327247

申请日：2011-12-15

申请人： Rahmi Hezar ,  Lei Ding ,  Joonhoi Hur ,  Baher S. Haroun

发明人： Rahmi Hezar ,  Lei Ding ,  Joonhoi Hur ,  Baher S. Haroun

IPC分类号： H03K7/08

CPC分类号： H04L1/0071 ,  H04B1/04

摘要： A method for transmitting radio frequency (RF) signals is provided. In-phase (I) and quadrature (Q) signals are received and filtered using sigma-delta modulation. I and Q pulse width modulation signals are generated from the filtered I and Q signals and interleaved so as to generate a time-interleaved signal. The time-interleaved signal is then amplified to generate the RF signals.

摘要翻译： 提供了一种用于发射射频（RF）信号的方法。 使用Σ-Δ调制接收和滤波同相（I）和正交（Q）信号。 从经滤波的I和Q信号产生I和Q脉宽调制信号并进行交织，以产生时间交织的信号。 然后对时间交织的信号进行放大以产生RF信号。

公开(公告)号：US20130234795A1

公开(公告)日：2013-09-12

申请号：US13416841

申请日：2012-03-09

申请人： Joonhoi Hur ,  Lei Ding ,  Rahmi Hezar ,  Baher S. Haroun

发明人： Joonhoi Hur ,  Lei Ding ,  Rahmi Hezar ,  Baher S. Haroun

IPC分类号： H03F3/217

CPC分类号： H03F3/2173 ,  H03F1/56 ,  H03F2200/387

摘要： A method is provided. A first enable signal is asserted so as to enable a first driver, where the first driver has a first output and a first parasitic capacitance. A second enable signal is asserted so as to enable a second driver, where the second driver has a second output and a second parasitic capacitance. The first and second outputs are coupled together by a switching network when the second driver is enabled. Pulses from complementary first and second radio frequency (RF) signals are applied to the first driver, where there is a first set of free-fly intervals between consecutive pulses from the first and second RF signals, and pulses from complementary third and fourth RF signals are applied to the second driver, wherein there is a second set of free-fly interval between consecutive pulses from the third and fourth RF signals.

摘要翻译： 提供了一种方法。 第一使能信号被确定为使第一驱动器能够使第一驱动器具有第一输出和第一寄生电容。 第二使能信号被确定为使第二驱动器能够启动，其中第二驱动器具有第二输出和第二寄生电容。 当第二驱动器被使能时，第一和第二输出由交换网络耦合在一起。 来自互补第一和第二射频（RF）信号的脉冲被施加到第一驱动器，其中在来自第一和第二RF信号的连续脉冲之间存在第一组自由飞行间隔，以及来自互补的第三和第四RF信号的脉冲 被施加到第二驱动器，其中在来自第三和第四RF信号的连续脉冲之间存在第二组自由间隔。

公开(公告)号：US20130241663A1

公开(公告)日：2013-09-19

申请号：US13421567

申请日：2012-03-15

申请人： Lei Ding ,  Rahmi Hezar ,  Joonhoi Hur ,  Baher S. Haroun

发明人： Lei Ding ,  Rahmi Hezar ,  Joonhoi Hur ,  Baher S. Haroun

IPC分类号： H03K7/08

CPC分类号： H03K7/08

摘要： A method is provided. An input signal is received, and a noise-shaped signal is generated from the input signal. The noise-shaped signal is formed from a plurality of noise-shaping levels. A pulse stream is generated from the noise-shaped signal over a plurality of periods, where each period has a plurality of frames. The pulse stream also includes a plurality of pulse sets, where each pulse set is associated with at least one of the noise-shaping levels, and, for each pulse set having a total pulse width for its period that is less than its period and greater than zero, each pulse set includes at least one pulse in each frame for its period.

摘要翻译： 提供了一种方法。 接收输入信号，并从输入信号产生噪声信号。 噪声形状信号由多个噪声整形电平形成。 在多个周期中，从噪声信号产生脉冲流，其中每个周期具有多个帧。 脉冲流还包括多个脉冲组，其中每个脉冲组与噪声整形电平中的至少一个相关联，并且对于每个具有小于其周期和更大周期的总脉冲宽度的脉冲集合 每个脉冲组在其周期中包括每帧中的至少一个脉冲。

公开(公告)号：US20130148760A1

公开(公告)日：2013-06-13

申请号：US13313971

申请日：2011-12-07

申请人： Rahmi Hezar ,  Lei Ding ,  Joonhoi Hur ,  Baher Haroun

发明人： Rahmi Hezar ,  Lei Ding ,  Joonhoi Hur ,  Baher Haroun

IPC分类号： H04L25/49

CPC分类号： H03F3/211 ,  H03F3/24 ,  H04L25/4902

摘要： A method for generating an amplified radio frequency (RF) signal is provided. In-phase (I) and quadrature (Q) signals are received and interleaved so as to generate a time-interleaved signal. Delayed time-interleaved signals are then generated from the time interleaved signal, and each of the delayed time-interleaved signals is amplified so as to generate a plurality of amplified signals. The amplified signals are then combined with a transformer, where the delayed time-interleaved signals are arranged to generate a filter response with the transformer.

摘要翻译： 提供了一种用于产生放大射频（RF）信号的方法。 接收和交织同相（I）和正交（Q）信号，以产生时间交织的信号。 然后从时间交织信号产生延迟的时间交织信号，并且每个延迟时间交织的信号被放大以产生多个放大的信号。 然后将放大的信号与变压器组合，其中延迟的时间交织信号被布置成产生与变压器的滤波器响应。

公开(公告)号：US08744378B2

公开(公告)日：2014-06-03

申请号：US13370151

申请日：2012-02-09

申请人： Joonhoi Hur ,  Rahmi Hezar ,  Lei Ding ,  Baher S. Haroun

发明人： Joonhoi Hur ,  Rahmi Hezar ,  Lei Ding ,  Baher S. Haroun

IPC分类号： H04B1/04

CPC分类号： H03F1/0294 ,  H03F1/0222 ,  H03F1/3241 ,  H03F1/3247 ,  H04B1/0475 ,  H04B2001/0425

摘要： A radio frequency (RF) transmitter is provided. The RF transmitter includes first and second drivers that are configured to receive first and second sets of complementary RF signals. Restoration circuits are coupled to the first and second drivers, and a bridge circuit is coupled to the first and second restoration circuits. By having the restoration circuits and the bridge circuit, a common mode impedance and a differential impedance can be provided, where the common mode impedance is lower than the differential impedance.

摘要翻译： 提供射频（RF）发射机。 RF发射器包括被配置为接收第一和第二组互补RF信号的第一和第二驱动器。 恢复电路耦合到第一和第二驱动器，并且桥接电路耦合到第一和第二恢复电路。 通过具有恢复电路和桥接电路，可以提供共模阻抗和差分阻抗，其中共模阻抗低于差分阻抗。

公开(公告)号：US08654867B2

公开(公告)日：2014-02-18

申请号：US13313971

申请日：2011-12-07

申请人： Rahmi Hezar ,  Lei Ding ,  Joonhoi Hur ,  Baher S. Haroun

发明人： Rahmi Hezar ,  Lei Ding ,  Joonhoi Hur ,  Baher S. Haroun

IPC分类号： H04L25/00

CPC分类号： H03F3/211 ,  H03F3/24 ,  H04L25/4902

摘要： A method for generating an amplified radio frequency (RF) signal is provided. In-phase (I) and quadrature (Q) signals are received and interleaved so as to generate a time-interleaved signal. Delayed time-interleaved signals are then generated from the time interleaved signal, and each of the delayed time-interleaved signals is amplified so as to generate a plurality of amplified signals. The amplified signals are then combined with a transformer, where the delayed time-interleaved signals are arranged to generate a filter response with the transformer.

摘要翻译： 提供了一种用于产生放大射频（RF）信号的方法。 接收和交织同相（I）和正交（Q）信号，以产生时间交织的信号。 然后从时间交织信号产生延迟的时间交织信号，并且每个延迟时间交织的信号被放大以产生多个放大的信号。 然后将放大的信号与变压器组合，其中延迟的时间交织信号被布置成产生与变压器的滤波器响应。