公开(公告)号：US20150303876A1

公开(公告)日：2015-10-22

申请号：US14258669

申请日：2014-04-22

申请人： QUALCOMM Incorporated

发明人： Alan Ngar Loong Chan ,  Gareth Seng Thai Yeo

IPC分类号： H03F1/02 ,  H03F3/21 ,  H03F3/45 ,  H03F3/193

CPC分类号： H03F1/0205 ,  H03F1/3211 ,  H03F1/523 ,  H03F3/193 ,  H03F3/21 ,  H03F3/245 ,  H03F3/45188 ,  H03F3/72 ,  H03F2200/129 ,  H03F2200/451 ,  H03F2200/541 ,  H03F2203/45024 ,  H03F2203/45116 ,  H03F2203/45302 ,  H03F2203/45731 ,  H03F2203/7206 ,  H03G1/0029 ,  H03G1/0088

摘要： An apparatus includes a differential cascode amplifier including a first transistor and a second transistor. The apparatus further includes a transistor including a source terminal coupled to a gate terminal of the first transistor of the differential cascode amplifier. The transistor also includes a drain terminal coupled to a gate terminal of the second transistor of the differential amplifier.

摘要翻译： 一种装置包括具有第一晶体管和第二晶体管的差分共源共栅放大器。 该装置还包括晶体管，其包括耦合到差分共源共栅放大器的第一晶体管的栅极端子的源极端子。 晶体管还包括耦合到差分放大器的第二晶体管的栅极端子的漏极端子。

公开(公告)号：US08988111B2

公开(公告)日：2015-03-24

申请号：US13017839

申请日：2011-01-31

申请人： Jeff Rysinski ,  Yibing Michelle Wang ,  Sang-Soo Lee

发明人： Jeff Rysinski ,  Yibing Michelle Wang ,  Sang-Soo Lee

IPC分类号： H03K19/00 ,  H03K19/02 ,  H03F3/45 ,  H03K5/24 ,  H03M1/12 ,  H03M1/56

CPC分类号： H03K5/2472 ,  H03F3/45188 ,  H03F2203/45292 ,  H03F2203/45302 ,  H03F2203/45674 ,  H03K5/2481 ,  H03M1/12 ,  H03M1/123 ,  H03M1/36 ,  H03M1/56

摘要： Aspects of the invention may include receiving a first input signal and a second input signal via respective first and second input transistors. A biasing signal, generated by a cascode bias generator, tracks the first input signal, where the biasing signal has a fixed offset with respect to the first input signal. The biasing signal may be applied to the first and second cascode transistors that may be cascoded to the first and second input transistors, respectively.

摘要翻译： 本发明的方面可以包括经由相应的第一和第二输入晶体管接收第一输入信号和第二输入信号。 由共源共栅偏压发生器产生的偏置信号跟踪第一输入信号，其中偏置信号相对于第一输入信号具有固定的偏移。 偏置信号可以分别施加到可以级联到第一和第二输入晶体管的第一和第二共源共栅晶体管。

公开(公告)号：US20140354358A1

公开(公告)日：2014-12-04

申请号：US14288461

申请日：2014-05-28

申请人： Postech Academy-Industry Foundation

发明人： Bum Man Kim ,  Sang su Jin

IPC分类号： H03F3/21 ,  H03F3/45

CPC分类号： H03F3/211 ,  H03F1/3211 ,  H03F3/45188 ,  H03F2200/387 ,  H03F2203/45302 ,  H03F2203/45366 ,  H03F2203/45554 ,  H03F2203/45576

摘要： The present disclosure relates to a power amplifier, the power amplifier including a first amplifier configured to form a common source by allowing sources of a plurality of first transistors to be commonly connected, a second amplifier configured to form a common source by allowing sources of a plurality of second transistors to be commonly connected and to be respectively connected in a cascode structure to the plurality of first transistors of the first amplifier, and a controller configured to be connected to a common gate node to short-circuit second harmonic impedance of the common gate.

摘要翻译： 本公开涉及一种功率放大器，功率放大器包括：第一放大器，被配置为通过允许多个第一晶体管的源共同连接来形成公共源;第二放大器，被配置为通过允许源的源形成公共源 多个第二晶体管共同连接并分别以共源共栅结构连接到第一放大器的多个第一晶体管，以及控制器，被配置为连接到公共栅极节点以短路公共端的二次谐波阻抗 门。

公开(公告)号：US08774747B2

公开(公告)日：2014-07-08

申请号：US13488902

申请日：2012-06-05

申请人： Seok-bong Hyun ,  Bong Hyuk Park ,  Yun Ho Choi ,  Jae Ho Jung

发明人： Seok-bong Hyun ,  Bong Hyuk Park ,  Yun Ho Choi ,  Jae Ho Jung

IPC分类号： H04B1/10 ,  H03D1/06

CPC分类号： H03F3/45179 ,  H03F3/72 ,  H03F2200/294 ,  H03F2203/45302 ,  H03F2203/45394 ,  H03F2203/7236

摘要： A radio frequency receiver of the present invention removes out-of-band jamming signals and interference signals without SAW filters. The radio frequency receiver includes: a low noise amplifier amplifying a signal received through an antenna; a second order intermodulation cancellation unit removing second order intermodulation caused by an out-of-band jamming or interference signal included in the signal output from the low noise amplifier; a passive mixer unit converting a frequency of the signal output from the second order intermodulation cancellation unit; and a low pass filter unit removing an out-of-band jamming or interference signal included in the signal output from the passive mixer unit and delivering the signal with the out-of-band jamming or interference signal removed therefrom to a transimpedance amplifier.

摘要翻译： 本发明的射频接收机在没有SAW滤波器的情况下去除带外干扰信号和干扰信号。 射频接收机包括：放大通过天线接收的信号的低噪声放大器; 二阶互调消除单元去除由低噪声放大器输出的信号中包含的带外干扰或干扰信号引起的二阶互调; 无源混频器单元，转换从二阶互调消除单元输出的信号的频率; 以及低通滤波器单元，去除从无源混频器单元输出的信号中包含的带外干扰或干扰信号，并且将从其去除的带外干扰或干扰信号的信号传送到跨阻抗放大器。

公开(公告)号：US20130135048A1

公开(公告)日：2013-05-30

申请号：US13488902

申请日：2012-06-05

申请人： Seok-bong HYUN ,  Bong Hyuk Park ,  Yun Ho Choi ,  Jae Ho Jung

发明人： Seok-bong HYUN ,  Bong Hyuk Park ,  Yun Ho Choi ,  Jae Ho Jung

IPC分类号： H03F3/45 ,  H03F3/16

CPC分类号： H03F3/45179 ,  H03F3/72 ,  H03F2200/294 ,  H03F2203/45302 ,  H03F2203/45394 ,  H03F2203/7236

摘要： A radio frequency receiver of the present invention removes out-of-band jamming signals and interference signals without SAW filters. The radio frequency receiver includes: a low noise amplifier amplifying a signal received through an antenna; a second order intermodulation cancellation unit removing second order intermodulation caused by an out-of-band jamming or interference signal included in the signal output from the low noise amplifier; a passive mixer unit converting a frequency of the signal output from the second order intermodulation cancellation unit; and a low pass filter unit removing an out-of-band jamming or interference signal included in the signal output from the passive mixer unit and delivering the signal with the out-of-band jamming or interference signal removed therefrom to a transimpedance amplifier.

摘要翻译： 本发明的射频接收机在没有SAW滤波器的情况下去除带外干扰信号和干扰信号。 射频接收机包括：放大通过天线接收的信号的低噪声放大器; 二阶互调消除单元去除由低噪声放大器输出的信号中包含的带外干扰或干扰信号引起的二阶互调; 无源混频器单元，转换从二阶互调消除单元输出的信号的频率; 以及低通滤波器单元，去除从无源混频器单元输出的信号中包含的带外干扰或干扰信号，并且将从其去除的带外干扰或干扰信号的信号传送到跨阻抗放大器。

公开(公告)号：US20130113565A1

公开(公告)日：2013-05-09

申请号：US13809299

申请日：2011-05-18

申请人： Oliver Landolt

发明人： Oliver Landolt

IPC分类号： H03F3/45

CPC分类号： H03F3/4508 ,  H03F1/3211 ,  H03F1/48 ,  H03F1/483 ,  H03F3/45085 ,  H03F3/45183 ,  H03F2203/45302 ,  H03F2203/45304 ,  H03F2203/45318 ,  H03F2203/45392

摘要： A differential amplifier provides an amplifier circuit including two differential pairs. A first differential pair is connected in series to a second differential pair. The second differential pair is connected in a crosswise manner at least indirectly to a differential output signal of the first differential pair. The first differential pair and the second differential pair form a first differential current path and a second differential current path. A first emulation device is connected in parallel to the first current path. A second emulation device is connected in parallel to the second current path.

摘要翻译： 差分放大器提供包括两个差分对的放大器电路。 第一差分对与第二差分对串联。 第二差分对至少间接地以交叉方式连接到第一差分对的差分输出信号。 第一差分对和第二差分对形成第一差分电流路径和第二差分电流路径。 第一仿真装置与第一电流路径并联连接。 第二仿真装置与第二电流路径并联连接。

公开(公告)号：US08238862B2

公开(公告)日：2012-08-07

申请号：US12497317

申请日：2009-07-02

申请人： Ahmad Mirzaei ,  Hooman Darabi

发明人： Ahmad Mirzaei ,  Hooman Darabi

IPC分类号： H04B1/18 ,  H04B1/10

CPC分类号： H04B1/1036 ,  H03F1/223 ,  H03F3/195 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2203/45302 ,  H03F2203/45394 ,  H03H19/008 ,  H03H2011/0488

摘要： Embodiments of a SAW-less RF receiver front-end that includes a frequency translated notch filter (FTNF) are presented. An FTNF includes a passive mixer and a baseband impedance. The baseband impedance includes capacitors that form a low-Q band-stop filter. The passive mixer is configured to translate the baseband impedance to a higher frequency. The translated baseband impedance forms a high-Q notch filter and is presented at the input of the FTNF. In an embodiment, the capacitors are implemented using MOS capacitors. In another embodiment, the capacitors are partially formed from MOS capacitors and fringe capacitors. The FTNF can be fully integrated in CMOS IC technology (or others, e.g., Bipolar, BiCMOS, and SiGe) and applied in wireless receiver systems including EDGE/GSM, Wideband Code Division Multiple Access (WCDMA), Bluetooth, and wireless LANs (e.g., IEEE 802.11).

摘要翻译： 提供了包括频率转换陷波滤波器（FTNF）的无SAW无RF接收机前端的实施例。 FTNF包括无源混频器和基带阻抗。 基带阻抗包括形成低Q带阻滤波器的电容器。 无源混频器被配置为将基带阻抗转换到更高的频率。 经翻译的基带阻抗形成高Q陷波滤波器，并呈现在FTNF的输入端。 在一个实施例中，使用MOS电容器实现电容器。 在另一个实施例中，电容器部分地由MOS电容器和边缘电容器形成。 FTNF可以完全集成到CMOS IC技术（或其他，例如双极，BiCMOS和SiGe）中，并应用于无线接收机系统，包括EDGE / GSM，宽带码分多址（WCDMA），蓝牙和无线局域网（例如 ，IEEE 802.11）。

公开(公告)号：US20110037518A1

公开(公告)日：2011-02-17

申请号：US12539507

申请日：2009-08-11

申请人： Hanil Lee ,  Li-chung Chang

发明人： Hanil Lee ,  Li-chung Chang

IPC分类号： H03F3/45

CPC分类号： H03F1/3205 ,  H03F1/223 ,  H03F1/3211 ,  H03F3/211 ,  H03F3/245 ,  H03F3/45179 ,  H03F3/72 ,  H03F2200/294 ,  H03F2200/492 ,  H03F2200/541 ,  H03F2203/45302 ,  H03F2203/45311 ,  H03F2203/45386 ,  H03F2203/45394 ,  H03G1/0029 ,  H04B1/109

摘要： Amplifiers with improved linearity and noise performance are described. In an exemplary design, an apparatus includes first through sixth transistors. The first transistor receives an input signal and provides an amplified signal. The second transistor receives the amplified signal and provides signal drive for an output signal. The third transistor receives the input signal and provides an intermediate signal. The fourth transistor provides bias for the third transistor in a high linearity mode. The fifth transistor receives the intermediate signal and provides signal drive for the output signal in a low linearity mode. The third and fourth transistors form a deboost path that is enabled in the high linearity mode to improve linearity. The third and fifth transistors form a cascode path that is enabled in the low linearity mode to improve gain and noise performance. The sixth transistor generates distortion component used to cancel distortion component from the first transistor.

摘要翻译： 描述了具有改善的线性和噪声性能的放大器。 在示例性设计中，装置包括第一至第六晶体管。 第一晶体管接收输入信号并提供放大信号。 第二晶体管接收放大信号并为输出信号提供信号驱动。 第三晶体管接收输入信号并提供中间信号。 第四晶体管以高线性模式为第三晶体管提供偏置。 第五晶体管接收中间信号，并以低线性模式为输出信号提供信号驱动。 第三和第四晶体管形成在高线性模式下启用的去桥路径，以改善线性度。 第三和第五晶体管形成在低线性模式下使能的共源共栅路径，以改善增益和噪声性能。 第六晶体管产生用于消除来自第一晶体管的失真分量的失真分量。

公开(公告)号：US07868810B2

公开(公告)日：2011-01-11

申请号：US12547973

申请日：2009-08-26

申请人： Mai Nozawa ,  Masanori Furuta

发明人： Mai Nozawa ,  Masanori Furuta

IPC分类号： H03M1/38

CPC分类号： H03F1/223 ,  H03F3/45183 ,  H03F3/45192 ,  H03F3/45475 ,  H03F3/45735 ,  H03F2200/249 ,  H03F2200/405 ,  H03F2200/414 ,  H03F2200/78 ,  H03F2203/45292 ,  H03F2203/45302 ,  H03F2203/45356 ,  H03F2203/45396 ,  H03F2203/45424 ,  H03F2203/45446 ,  H03F2203/45536 ,  H03F2203/45544 ,  H03F2203/45551 ,  H03F2203/45616 ,  H03F2203/45726 ,  H03F2203/45728 ,  H03M1/002 ,  H03M1/0682 ,  H03M1/164

摘要： An amplifier circuit includes a current source that is connected between a power supply voltage and an output node and that is turned on when a switching control signal takes a first value and is turned off when the switching control signal takes a second value; a grounded voltage control current source whose amount of current is controlled by an input voltage; a cascode transistor connected between the voltage control current source and the output node; a boost amplifier connected between a gate electrode and a source electrode of the cascode transistor; and a switch that is connected between an output node of the boost amplifier and a bias voltage and that is turned on for a predetermined period of time when a value of the switching control signal is switched from the second value to the first value, to forcefully rise the boost amplifier.

摘要翻译： 放大器电路包括连接在电源电压和输出节点之间的电流源，并且当开关控制信号取第一值时导通，并且当开关控制信号取第二值时被关断; 接地电压控制电流源，其电流量由输入电压控制; 连接在电压控制电流源和输出节点之间的共源共栅晶体管; 连接在共栅二极管的栅电极和源电极之间的升压放大器; 以及开关，其连接在所述升压放大器的输出节点和偏置电压之间，并且当所述开关控制信号的值从所述第二值切换到所述第一值时，所述开关被接通预定时间段，以强制地 升高放大器。

公开(公告)号：US20110003572A1

公开(公告)日：2011-01-06

申请号：US12497317

申请日：2009-07-02

申请人： Ahmad MIRZAEI ,  Hooman Darabi

发明人： Ahmad MIRZAEI ,  Hooman Darabi

IPC分类号： H04B1/10

CPC分类号： H04B1/1036 ,  H03F1/223 ,  H03F3/195 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2203/45302 ,  H03F2203/45394 ,  H03H19/008 ,  H03H2011/0488

摘要： Embodiments of a SAW-less RF receiver front-end that includes a frequency translated notch filter (FTNF) are presented. An FTNF includes a passive mixer and a baseband impedance. The baseband impedance includes capacitors that form a low-Q band-stop filter. The passive mixer is configured to translate the baseband impedance to a higher frequency. The translated baseband impedance forms a high-Q notch filter and is presented at the input of the FTNF. In an embodiment, the capacitors are implemented using MOS capacitors. In another embodiment, the capacitors are partially formed from MOS capacitors and fringe capacitors. The FTNF can be fully integrated in CMOS IC technology (or others, e.g., Bipolar, BiCMOS, and SiGe) and applied in wireless receiver systems including EDGE/GSM, Wideband Code Division Multiple Access (WCDMA), Bluetooth, and wireless LANs (e.g., IEEE 802.11).

摘要翻译： 提供了包括频率转换陷波滤波器（FTNF）的无SAW无RF接收机前端的实施例。 FTNF包括无源混频器和基带阻抗。 基带阻抗包括形成低Q带阻滤波器的电容器。 无源混频器被配置为将基带阻抗转换到更高的频率。 经翻译的基带阻抗形成高Q陷波滤波器，并呈现在FTNF的输入端。 在一个实施例中，使用MOS电容器实现电容器。 在另一个实施例中，电容器部分地由MOS电容器和边缘电容器形成。 FTNF可以完全集成到CMOS IC技术（或其他，例如双极，BiCMOS和SiGe）中，并应用于无线接收机系统，包括EDGE / GSM，宽带码分多址（WCDMA），蓝牙和无线局域网（例如 ，IEEE 802.11）。