专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07889007B2 Differential amplifier with active post-distortion linearization 有权
标题翻译：具有有源后失真线性化的差分放大器
公开(公告)号：US07889007B2
公开(公告)日：2011-02-15
申请号：US11696876
申请日：2007-04-05
申请人： Namsoo Kim , Kenneth Charles Barnett , Vladimir Aparin
发明人： Namsoo Kim , Kenneth Charles Barnett , Vladimir Aparin
IPC分类号： H03F3/18
CPC分类号： H03F1/3211 , H03F1/22 , H03F1/223 , H03F1/26 , H03F1/3205 , H03F1/3276 , H03F3/45188 , H03F2200/294 , H03F2200/372 , H03F2200/456 , H03F2200/489 , H03F2200/492 , H03F2203/45296 , H03F2203/45311 , H03F2203/45352 , H03F2203/45386 , H03F2203/45481 , H04B1/525
摘要： A differential amplifier, which has good linearity and noise performance, includes a first side that includes first, second, third, and fourth transistors and an inductor. The first and second transistors are coupled as a first cascode pair, and the third and fourth transistors are coupled as a second cascode pair. The third transistor has its gate coupled to the source of the second transistor, and the fourth transistor has its drain coupled to the drain of the second transistor. The first transistor provides signal amplification. The second transistor provides load isolation and generates an intermediate signal for the third transistor. The third transistor generates distortion components used to cancel third order distortion component generated by the first transistor. The inductor provides source degeneration for the first transistor and improves distortion cancellation. The sizes of the second and third transistors are selected to reduce gain loss and achieve good linearity for the amplifier. The differential amplifier also may include a second side that functions similarly to the first side.
摘要翻译：具有良好线性度和噪声性能的差分放大器包括包括第一，第二，第三和第四晶体管和电感器的第一侧。第一和第二晶体管作为第一共源共栅对耦合，并且第三和第四晶体管作为第二共源共栅对耦合。第三晶体管的栅极耦合到第二晶体管的源极，并且第四晶体管的漏极耦合到第二晶体管的漏极。第一个晶体管提供信号放大。第二晶体管提供负载隔离并为第三晶体管产生中间信号。第三晶体管产生用于消除由第一晶体管产生的三阶失真分量的失真分量。电感器为第一晶体管提供源极退化并改善失真消除。选择第二和第三晶体管的尺寸以减小增益损失并且为放大器获得良好的线性度。差分放大器还可以包括与第一侧类似地起作用的第二侧。

2. 发明授权

US07902925B2 Amplifier with active post-distortion linearization 有权
标题翻译：具有有源后失真线性化的放大器
公开(公告)号：US07902925B2
公开(公告)日：2011-03-08
申请号：US11285949
申请日：2005-11-22
申请人： Namsoo Kim , Kenneth Charles Barnett , Vladimir Aparin
发明人： Namsoo Kim , Kenneth Charles Barnett , Vladimir Aparin
IPC分类号： H03F1/22
CPC分类号： H03F1/223 , H03F1/3205 , H03F1/3276 , H03F2200/294 , H03F2200/372 , H04B1/525
摘要： An amplifier, which has good linearity and noise performance, includes first, second, third, and fourth transistors and an inductor. The first and second transistors are coupled as a first cascode pair, and the third and fourth transistors are coupled as a second cascode pair. The third transistor has its gate coupled to the source of the second transistor, and the fourth transistor has its drain coupled to the drain of the second transistor. The first transistor provides signal amplification. The second transistor provides load isolation and generates an intermediate signal for the third transistor. The third transistor generates distortion components used to cancel third order distortion component generated by the first transistor. The inductor provides source degeneration for the first transistor and improves distortion cancellation. The sizes of the second and third transistors are selected to reduce gain loss and achieve good linearity for the amplifier.
摘要翻译：具有良好线性度和噪声性能的放大器包括第一，第二，第三和第四晶体管和电感器。第一和第二晶体管作为第一共源共栅对耦合，并且第三和第四晶体管作为第二共源共栅对耦合。第三晶体管的栅极耦合到第二晶体管的源极，并且第四晶体管的漏极耦合到第二晶体管的漏极。第一个晶体管提供信号放大。第二晶体管提供负载隔离并为第三晶体管产生中间信号。第三晶体管产生用于消除由第一晶体管产生的三阶失真分量的失真分量。电感器为第一晶体管提供源极退化并改善失真消除。选择第二和第三晶体管的尺寸以减小增益损失并且为放大器获得良好的线性度。

3. 发明申请

US20100244927A1 SPUR ATTENUATION DEVICES, SYSTEMS, AND METHODS 有权
标题翻译： SPUR衰减设备，系统和方法
公开(公告)号：US20100244927A1
公开(公告)日：2010-09-30
申请号：US12494068
申请日：2009-06-29
申请人： Vladimir Aparin , Namsoo Kim , Lennart K. Mathe
发明人： Vladimir Aparin , Namsoo Kim , Lennart K. Mathe
IPC分类号： G06G7/12
CPC分类号： H04B1/525 , H03F1/34 , H03F3/24 , H04B1/0475 , H04B1/109 , H04B1/123 , H04B2001/0433
摘要： Exemplary embodiments of the invention disclose signal filtering. In an exemplary embodiment, a filter device may comprise a subtractor operably coupled between an input and an output and configured to receive an input signal comprising a desired component and at least one undesired frequency component. The filter device may further include a feedback loop configured to receive at least one of the input signal and an output signal from the subtractor and convey a feedback signal comprising at least one undesired component to the subtractor. Each undesired component of the feedback signal corresponds to an associated undesired component of the input signal. Furthermore, the subtractor subtracts the feedback signal from the input signal and convey the output signal
摘要翻译：本发明的示例性实施例公开了信号滤波。在示例性实施例中，滤波器装置可以包括可操作地耦合在输入端和输出端之间并被配置为接收包括期望分量和至少一个不需要的频率分量的输入信号的减法器。滤波器装置还可以包括反馈回路，其被配置为从减法器接收输入信号和输出信号中的至少一个，并将包括至少一个不期望的分量的反馈信号传送到减法器。反馈信号的每个不期望的分量对应于输入信号的相关不期望的分量。此外，减法器从输入信号中减去反馈信号并传送输出信号

4. 发明授权

US08331897B2 Highly linear embedded filtering passive mixer 有权
标题翻译：高线性嵌入式滤波无源混频器
公开(公告)号：US08331897B2
公开(公告)日：2012-12-11
申请号：US12192933
申请日：2008-08-15
申请人： Namsoo Kim , Prasad S. Gudem , Vladimir Aparin
发明人： Namsoo Kim , Prasad S. Gudem , Vladimir Aparin
IPC分类号： H04B1/26
CPC分类号： H03D7/163 , H03D7/1466 , H03D7/166
摘要： A communication channel has a highly linear switched current mixer that incorporates passive filtering (e.g., low pass, notch) for improved transmitting (Tx) and receiving (Rx) with adding external filtering components. A high IIP2 (input referenced second order intercept point) of the receiver at the Tx offset is essential to avoid corrupting the system's sensitivity performance, and a high triple beat (TB) is required to avoid sensitivity degradation due to transmitter leakage. Thanks to the embedded filtering in the mixer and the active post-distortion (APD) method in a low noise amplifier (LNA), the required high linearity is achieved with low noise figure and power consumption, overcoming transmitter power leakage without the use of a SAW (surface acoustic wave) filter.
摘要翻译：通信通道具有高度线性的开关电流混频器，其结合无源滤波（例如，低通，陷波），用于增加外部滤波组件以改善发射（Tx）和接收（Rx）。接收机在Tx偏移处的高IIP2（输入参考二阶截取点）对于避免破坏系统的灵敏度性能至关重要，并且需要高三重（TB）以避免由于发射机泄漏导致的灵敏度劣化。由于混频器中的嵌入式滤波器和低噪声放大器（LNA）中的有源后失真（APD）方法，所需的高线性度可通过低噪声系数和功耗实现，克服发射机功率泄漏而不使用 SAW（表面声波）滤波器。

5. 发明授权

US07965134B2 Spur attenuation devices, systems, and methods 有权
标题翻译：支线衰减器件，系统和方法
公开(公告)号：US07965134B2
公开(公告)日：2011-06-21
申请号：US12494068
申请日：2009-06-29
申请人： Vladimir Aparin , Namsoo Kim , Lennart K. Mathe
发明人： Vladimir Aparin , Namsoo Kim , Lennart K. Mathe
IPC分类号： H04B1/10
CPC分类号： H04B1/525 , H03F1/34 , H03F3/24 , H04B1/0475 , H04B1/109 , H04B1/123 , H04B2001/0433
摘要： Exemplary embodiments of the invention disclose signal filtering. In an exemplary embodiment, a filter device may comprise a subtractor operably coupled between an input and an output and configured to receive an input signal comprising a desired component and at least one undesired frequency component. The filter device may further include a feedback loop configured to receive at least one of the input signal and an output signal from the subtractor and convey a feedback signal comprising at least one undesired component to the subtractor. Each undesired component of the feedback signal corresponds to an associated undesired component of the input signal. Furthermore, the subtractor subtracts the feedback signal from the input signal and convey the output signal.
摘要翻译：本发明的示例性实施例公开了信号滤波。在示例性实施例中，滤波器装置可以包括可操作地耦合在输入端和输出端之间并被配置为接收包括期望分量和至少一个不需要的频率分量的输入信号的减法器。滤波器装置还可以包括反馈回路，其被配置为从减法器接收输入信号和输出信号中的至少一个，并将包括至少一个不期望的分量的反馈信号传送到减法器。反馈信号的每个不期望的分量对应于输入信号的相关不期望的分量。此外，减法器从输入信号中减去反馈信号并传送输出信号。

6. 发明申请

US20090252252A1 HIGHLY LINEAR EMBEDDED FILTERING PASSIVE MIXER 有权
标题翻译：高度线性嵌入式无源混频器
公开(公告)号：US20090252252A1
公开(公告)日：2009-10-08
申请号：US12192933
申请日：2008-08-15
申请人： Namsoo Kim , Prasad S. Gudem , Vladimir Aparin
发明人： Namsoo Kim , Prasad S. Gudem , Vladimir Aparin
IPC分类号： H04L27/02
CPC分类号： H03D7/163 , H03D7/1466 , H03D7/166
摘要： A communication channel has a highly linear switched current mixer that incorporates passive filtering (e.g., low pass, notch) for improved transmitting (Tx) and receiving (Rx) with adding external filtering components. A high IIP2 (input referenced second order intercept point) of the receiver at the Tx offset is essential to avoid corrupting the system's sensitivity performance, and a high triple beat (TB) is required to avoid sensitivity degradation due to transmitter leakage. Thanks to the embedded filtering in the mixer and the active post-distortion (APD) method in a low noise amplifier (LNA), the required high linearity is achieved with low noise figure and power consumption, overcoming transmitter power leakage without the use of a SAW (surface acoustic wave) filter.
摘要翻译：通信通道具有高度线性的开关电流混频器，其结合无源滤波（例如，低通，陷波），用于增加外部滤波组件以改善发射（Tx）和接收（Rx）。接收机在Tx偏移处的高IIP2（输入参考二阶截取点）对于避免破坏系统的灵敏度性能至关重要，并且需要高三重（TB）以避免由于发射机泄漏导致的灵敏度劣化。由于混频器中的嵌入式滤波器和低噪声放大器（LNA）中的有源后失真（APD）方法，所需的高线性度可通过低噪声系数和功耗实现，克服发射机功率泄漏而不使用 SAW（表面声波）滤波器。

7. 发明申请

US20070229154A1 DIFFERENTIAL AMPLIFIER WITH ACTIVE POST-DISTORTION LINEARIZATION 有权
标题翻译：具有主动后失真线性化的差分放大器
公开(公告)号：US20070229154A1
公开(公告)日：2007-10-04
申请号：US11696876
申请日：2007-04-05
申请人： Namsoo Kim , Kenneth Barnett , Vladimir Aparin
发明人： Namsoo Kim , Kenneth Barnett , Vladimir Aparin
IPC分类号： H03F1/26
CPC分类号： H03F1/3211 , H03F1/22 , H03F1/223 , H03F1/26 , H03F1/3205 , H03F1/3276 , H03F3/45188 , H03F2200/294 , H03F2200/372 , H03F2200/456 , H03F2200/489 , H03F2200/492 , H03F2203/45296 , H03F2203/45311 , H03F2203/45352 , H03F2203/45386 , H03F2203/45481 , H04B1/525
摘要： A differential amplifier, which has good linearity and noise performance, includes a first side that includes first, second, third, and fourth transistors and an inductor. The first and second transistors are coupled as a first cascode pair, and the third and fourth transistors are coupled as a second cascode pair. The third transistor has its gate coupled to the source of the second transistor, and the fourth transistor has its drain coupled to the drain of the second transistor. The first transistor provides signal amplification. The second transistor provides load isolation and generates an intermediate signal for the third transistor. The third transistor generates distortion components used to cancel third order distortion component generated by the first transistor. The inductor provides source degeneration for the first transistor and improves distortion cancellation. The sizes of the second and third transistors are selected to reduce gain loss and achieve good linearity for the amplifier. The differential amplifier also may include a second side that functions similarly to the first side.
摘要翻译：具有良好线性度和噪声性能的差分放大器包括包括第一，第二，第三和第四晶体管和电感器的第一侧。第一和第二晶体管作为第一共源共栅对耦合，并且第三和第四晶体管作为第二共源共栅对耦合。第三晶体管的栅极耦合到第二晶体管的源极，并且第四晶体管的漏极耦合到第二晶体管的漏极。第一个晶体管提供信号放大。第二晶体管提供负载隔离并为第三晶体管产生中间信号。第三晶体管产生用于消除由第一晶体管产生的三阶失真分量的失真分量。电感器为第一晶体管提供源极退化并改善失真消除。选择第二和第三晶体管的尺寸以减小增益损失并且为放大器获得良好的线性度。差分放大器还可以包括与第一侧类似地起作用的第二侧。

8. 发明申请

US20070030076A1 Amplifier with active post-distortion linearization 有权
标题翻译：具有有源后失真线性化的放大器
公开(公告)号：US20070030076A1
公开(公告)日：2007-02-08
申请号：US11285949
申请日：2005-11-22
申请人： Namsoo Kim , Kenneth Barnett , Vladimir Aparin
发明人： Namsoo Kim , Kenneth Barnett , Vladimir Aparin
IPC分类号： H03F1/22
CPC分类号： H03F1/223 , H03F1/3205 , H03F1/3276 , H03F2200/294 , H03F2200/372 , H04B1/525
摘要： An amplifier, which has good linearity and noise performance, includes first, second, third, and fourth transistors and an inductor. The first and second transistors are coupled as a first cascode pair, and the third and fourth transistors are coupled as a second cascode pair. The third transistor has its gate coupled to the source of the second transistor, and the fourth transistor has its drain coupled to the drain of the second transistor. The first transistor provides signal amplification. The second transistor provides load isolation and generates an intermediate signal for the third transistor. The third transistor generates distortion components used to cancel third order distortion component generated by the first transistor. The inductor provides source degeneration for the first transistor and improves distortion cancellation. The sizes of the second and third transistors are selected to reduce gain loss and achieve good linearity for the amplifier.
摘要翻译：具有良好线性度和噪声性能的放大器包括第一，第二，第三和第四晶体管和电感器。第一和第二晶体管作为第一共源共栅对耦合，并且第三和第四晶体管作为第二共源共栅对耦合。第三晶体管的栅极耦合到第二晶体管的源极，并且第四晶体管的漏极耦合到第二晶体管的漏极。第一个晶体管提供信号放大。第二晶体管提供负载隔离并为第三晶体管产生中间信号。第三晶体管产生用于消除由第一晶体管产生的三阶失真分量的失真分量。电感器为第一晶体管提供源极退化并改善失真消除。选择第二和第三晶体管的尺寸以减小增益损失并且为放大器获得良好的线性度。

9. 发明申请

US20120286869A1 CURRENT BUFFER 有权
标题翻译：当前缓冲区
公开(公告)号：US20120286869A1
公开(公告)日：2012-11-15
申请号：US13107754
申请日：2011-05-13
申请人： Namsoo Kim , Joseph Patrick Burke
发明人： Namsoo Kim , Joseph Patrick Burke
IPC分类号： H03F3/45
CPC分类号： H03F3/45659 , H03F3/45179 , H03F2203/45306 , H03F2203/45521 , H03F2203/45612
摘要： A current filtering current buffer amplifier includes: a first port and a second input port configured to be coupled to and receive input current; a first output port and a second output port configured to be coupled to and provide current to a load; a buffer configured to transfer the received input current to the first and second output ports as an output current, the buffer having an input impedance and an output impedance where the output impedance is higher than the input impedance, the buffer including first and second amplifiers, the first amplifier being a common mode feedback amplifier; and a filter coupled to the first and second input ports and coupled to the first and second amplifiers, the filter having a complex impedance and being configured to notch filter the received input current.
摘要翻译：电流滤波电流缓冲放大器包括：第一端口和第二输入端口，被配置为耦合到并接收输入电流; 第一输出端口和第二输出端口，被配置为耦合到负载并且向负载提供电流; 缓冲器，被配置为将接收到的输入电流传送到第一和第二输出端口作为输出电流，该缓冲器具有输入阻抗和输出阻抗，其中输出阻抗高于输入阻抗，该缓冲器包括第一和第二放大器，第一放大器是共模反馈放大器; 以及耦合到所述第一和第二输入端口并耦合到所述第一和第二放大器的滤波器，所述滤波器具有复阻抗并被配置为陷波滤波所接收的输入电流。

10. 发明授权

US08570106B2 Positive feedback common gate low noise amplifier 有权
标题翻译：正反馈公共门低噪声放大器
公开(公告)号：US08570106B2
公开(公告)日：2013-10-29
申请号：US13107737
申请日：2011-05-13
申请人： Namsoo Kim , Joseph Patrick Burke
发明人： Namsoo Kim , Joseph Patrick Burke
IPC分类号： H03F1/38
CPC分类号： H03F3/45179 , H03F1/223 , H03F1/26 , H03F1/38 , H03F1/42 , H03F1/565 , H03F3/193 , H03F2200/294 , H03F2200/36 , H03F2203/45306 , H03F2203/45311 , H03F2203/45318 , H03F2203/45386 , H03F2203/45394 , H03F2203/45511 , H03F2203/45634 , H03F2203/45638
摘要： A Positive Feedback Common Gate Low Noise Amplifier (PFCGLNA) has positive feedback transistors and input transistors that are of the same conductivity type. Making the positive feedback and input transistors of the same conductivity type reduces sensitivity to process variations. Noise generated by the positive feedback transistors is used to cancel noise generated by the input transistors. In one embodiment, the PFCGLNA: 1) is tunable to have a substantially constant input impedance for any frequency in a wideband frequency range from 680 MHz to 980 MHz, and 2) has a noise figure less than 2.2 dB over the entire wideband frequency range. The input impedance of the PFCGLNA can be tuned to match a source that drives the PFCGLNA by setting a multi-bit digital control value supplied to a digitally-programmable tank load of the LNA.
摘要翻译：正反馈公共门低噪声放大器（PFCGLNA）具有正反馈晶体管和具有相同导电类型的输入晶体管。使相同导电类型的正反馈和输入晶体管降低对工艺变化的敏感性。由正反馈晶体管产生的噪声用于消除由输入晶体管产生的噪声。在一个实施例中，PFCGLNA：1）可调谐以对于在680MHz至980MHz的宽带频率范围内的任何频率具有基本上恒定的输入阻抗，以及2）在整个宽带频率范围内具有小于2.2dB的噪声系数。 PFCGLNA的输入阻抗可以通过设置提供给LNA的数字可编程容量负载的多位数字控制值来调节驱动PFCGLNA的源。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式