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1. 发明申请

WO2018084981A1 SYSTEMS AND METHODS PROVIDING LOADLINE MODULATION OF A POWER AMPLIFIER 审中-公开
标题翻译：提供功率放大器负载线调制的系统和方法
公开(公告)号：WO2018084981A1
公开(公告)日：2018-05-11
申请号：PCT/US2017/054781
申请日：2017-10-02
申请人： QUALCOMM INCORPORATED
发明人： CABANILLAS, Jose
IPC分类号： H03F1/02 , H03F1/56 , H03F3/189 , H03F3/24 , H04B1/04
CPC分类号： H03F1/56 , H03F1/0272 , H03F3/189 , H03F3/193 , H03F3/21 , H03F3/24 , H03F3/245 , H03F2200/102 , H03F2200/171 , H03F2200/387 , H03F2200/451 , H03F2200/78 , H04B1/0458
摘要： A circuit including: a power amplifier configured to provide amplified signals to a load; an impedance matching network disposed between the power amplifier and the load, the impedance matching network comprising an adjustable impedance unit; and a feedback loop comprising a rectifier, the rectifier being coupled with an output of the power amplifier, the feedback loop further comprising and impedance control circuit configured to receive a signal from the rectifier and to control the adjustable impedance unit in response to the signal from the rectifier.
摘要翻译：一种电路，包括：功率放大器，被配置为将放大的信号提供给负载; 布置在所述功率放大器与所述负载之间的阻抗匹配网络，所述阻抗匹配网络包括可调阻抗单元; 以及包括整流器的反馈回路，所述整流器与所述功率放大器的输出耦合，所述反馈回路还包括阻抗控制电路，所述阻抗控制电路被配置为从所述整流器接收信号并且响应于来自所述整流器的信号来控制所述可调阻抗单元整流器。

2. 发明申请

WO2013126610A8 ADJUSTABLE BYPASS CIRCUIT FOR A SUPPLY VOLTAGE FOR AN AMPLIFIER 审中-公开
公开(公告)号：WO2013126610A8
公开(公告)日：2013-08-29
申请号：PCT/US2013/027193
申请日：2013-02-21
申请人： QUALCOMM INCORPORATED
发明人： PRESTI, Calogero, D. , CABANILLAS, Jose
IPC分类号： H03F1/02 , H03F3/24
摘要： Techniques for bypassing a supply voltage for an amplifier are disclosed. In an exemplary design, an apparatus includes an amplifier and an adjustable bypass circuit. The amplifier (e.g., a power amplifier) receives a supply voltage from a supply source. The adjustable bypass circuit is coupled to the supply source and provides bypassing for the supply voltage. The adjustable bypass circuit includes an adjustable capacitor or a fixed capacitor coupled to an adjustable resistor. The supply source may be (i) a power supply source providing a fixed supply voltage for the amplifier or (ii) an envelope tracker providing a variable supply voltage for the amplifier.

3. 发明申请

WO2018080713A1 SOURCE FOLLOWER BASED ENVELOPE TRACKING FOR POWER AMPLIFIER BIASING 审中-公开
标题翻译： SOURCE FOLLOWER基于信号跟踪功率放大器偏置
公开(公告)号：WO2018080713A1
公开(公告)日：2018-05-03
申请号：PCT/US2017/053827
申请日：2017-09-27
申请人： QUALCOMM INCORPORATED
发明人： CHEN, Jiang , GOLDBLATT, Jeremy , CABANILLAS, Jose
IPC分类号： H03F1/02 , H03F1/32 , H03F3/189 , H03F3/193
CPC分类号： H03G3/3042 , H03F1/0266 , H03F1/223 , H03F1/32 , H03F1/56 , H03F3/189 , H03F3/193 , H03F3/21 , H03F3/245 , H03F3/45179 , H03F3/505 , H03F2200/102 , H03F2200/211 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/411 , H03F2200/537 , H03F2200/69 , H03F2203/45394 , H03G2201/106
摘要： A power amplifier bias circuit with embedded envelope detection includes a bias circuit stage coupled to an envelope detector circuit to increases a bias provided to a power amplifier as a function of an incoming envelope signal. The envelope detector circuit includes a first source/emitter follower transistor, a current source, and a filter to generate a baseband envelope signal. The current source is coupled to an output node of the first source/emitter follower transistor and the filter is also coupled to the output node of the first source/emitter follower transistor. The bias circuit stage includes one or more replica transistors that replicate transistors of the power amplifier or power amplifier core stage, an envelope detector replica transistor and a replica of the current source of the envelope detector circuit.
摘要翻译：具有嵌入包络检测的功率放大器偏置电路包括耦合到包络检测器电路的偏置电路级，以根据输入包络信号增加提供给功率放大器的偏置。包络检测器电路包括第一源极/射极跟随器晶体管，电流源和用于生成基带包络信号的滤波器。电流源耦合到第一源极/射极跟随器晶体管的输出节点，并且滤波器也耦合到第一源极/射极跟随器晶体管的输出节点。偏置电路级包括复制功率放大器或功率放大器核心级的晶体管的一个或多个复制晶体管，包络检测器复制晶体管和包络检测器电路的电流源的复制品。

4. 发明申请

WO2013123074A1 AMPLIFIER WITH REDUCED SOURCE DEGENERATION INDUCTANCE 审中-公开
标题翻译：具有减少源衰减电感的放大器
公开(公告)号：WO2013123074A1
公开(公告)日：2013-08-22
申请号：PCT/US2013/025967
申请日：2013-02-13
申请人： QUALCOMM INCORPORATED
发明人： CABANILLAS, Jose , PRESTI, Calogero D. , FREDERICK, JR., Norman L.
IPC分类号： H03F1/34 , H03F1/56 , H03F3/193 , H03F3/24
CPC分类号： H03F1/347 , H03F1/223 , H03F1/565 , H03F3/193 , H03F3/245
摘要： Techniques for reducing undesired source degeneration inductance are disclosed. In an exemplary design, an apparatus includes first and second connections. The first connection includes a first parasitic inductance acting as a source degeneration inductance of an amplifier. The second connection includes a second parasitic inductance magnetically coupled to the first parasitic inductance to reduce the source degeneration inductance of the amplifier. The amplifier (e.g., a single-ended power amplifier) may be coupled to circuit ground via the first connection. An impedance matching circuit may be coupled to the amplifier and may include a circuit component coupled to circuit ground via the second connection. The first connection may be located sufficiently close to (e.g., within a predetermined distance of) the second connection in order to obtain the desired magnetic coupling between the first and second parasitic inductances.
摘要翻译：公开了用于减少不期望的源极退化电感的技术。在示例性设计中，装置包括第一和第二连接。第一连接包括作为放大器的源极退化电感的第一寄生电感。第二连接包括磁耦合到第一寄生电感的第二寄生电感，以减小放大器的源极退化电感。放大器（例如，单端功率放大器）可以经由第一连接耦合到电路接地。阻抗匹配电路可以耦合到放大器，并且可以包括经由第二连接耦合到电路接地的电路部件。为了获得第一和第二寄生电感之间的期望的磁耦合，第一连接可以被定位成足够靠近（例如，在第二连接的预定距离内）。

5. 发明申请

WO2014043271A1 FILTERS FOR MULTI-BAND WIRELESS DEVICE 审中-公开
标题翻译：多带无线设备滤波器
公开(公告)号：WO2014043271A1
公开(公告)日：2014-03-20
申请号：PCT/US2013/059309
申请日：2013-09-11
申请人： QUALCOMM INCORPORATED
发明人： CABANILLAS, Jose , HADJICHRISTOS, Aristotele , KRISTENSEN, Per O. , PUNTAMBEKAR, Mohan V.
IPC分类号： H03H7/46 , H03H11/34 , H04B1/00 , H04B1/18 , H04B1/707 , H04B1/48 , H01P1/213 , H03H7/38 , H03H11/30
CPC分类号： H03H11/344 , H01P1/213 , H03H7/465 , H03H11/30 , H03H2007/386 , H04B1/0458
摘要： Techniques to implement a filter for a selected signal path by reusing a circuit component in an unselected signal path are disclosed. In an exemplary design, an apparatus includes first, second, and third circuits (580a, 580b, 560a). The first circuit (580a) passes a first radio frequency (RF) signal to an antenna (598) when a first signal path (522a) is selected. The second circuit (580b) passes a second RF signal to the antenna (598) when a second signal path (522b) is selected. The third circuit (560a) is selectively coupled to the first circuit (580a), e.g., via a switch (562a). The first and third circuits (580a, 560a) form a filter for the second RF signal (e.g., to attenuate a harmonic of the second RF signal) when the second signal path (522b) is selected and the first signal path (522a) is unselected. The first circuit may include a series inductor, and the third circuit may include a shunt capacitor.
摘要翻译：公开了通过重新使用未选信号路径中的电路部件来实现所选信号路径的滤波器的技术。在示例性设计中，装置包括第一，第二和第三电路（580a，580b，560a）。当选择第一信号路径（522a）时，第一电路（580a）将第一射频（RF）信号传递到天线（598）。当选择第二信号路径（522b）时，第二电路（580b）将第二RF信号传递到天线（598）。第三电路（560a）例如经由开关（562a）选择性地耦合到第一电路（580a）。当选择第二信号路径（522b）并且第一信号路径（522a）是第一信号路径（522a）时，第一和第三电路（580a，560a）形成用于第二RF信号的滤波器（例如，衰减第二RF信号的谐波）未选中。第一电路可以包括串联电感器，并且第三电路可以包括并联电容器。

6. 发明申请

WO2009079491A1 LOW NOISE AND LOW INPUT CAPACITANCE DIFFERENTIAL MDS LNA 审中-公开
标题翻译：低噪声和低输入电容差分MDS LNA
公开(公告)号：WO2009079491A1
公开(公告)日：2009-06-25
申请号：PCT/US2008/086950
申请日：2008-12-16
申请人： QUALCOMM Incorporated , CABANILLAS, Jose , GUDEM, Prasad S. , KIM, Namsoo , MARCU, Cristian , SAVLA, Anup
发明人： CABANILLAS, Jose , GUDEM, Prasad S. , KIM, Namsoo , MARCU, Cristian , SAVLA, Anup
IPC分类号： H03F1/32
CPC分类号： H03F3/45188 , H03F1/3205 , H03F1/3211 , H03F2203/45318 , H03F2203/45396
摘要： A differential low noise amplifier (LNA) involves two main amplifying transistors biased in saturation, and two cancel transistors biased in sub-threshold. In one example, the gates of the cancel transistors are coupled to the drains of main transistors, in a symmetrical and cross-coupled fashion. The main transistors are source degenerated. Because the gates of cancel transistors are not coupled to the differential input leads of the LNA, the input capacitance of the LNA is reduced. Noise introduced into the LNA output due to the cancel transistors being biased in the sub-threshold region is reduced because there are two stages. The first stage involves the main transistors, and the second stage involves the cancel transistors. By increasing the gain of the first stage and decreasing the gain of the second stage, overall LNA gain is maintained while reducing the noise that the sub-threshold biased transistors contribute to the LNA output.
摘要翻译：差分低噪声放大器（LNA）涉及两个偏置饱和的主放大晶体管，两个取消晶体管偏置为次阈值。在一个示例中，取消晶体管的栅极以对称和交叉耦合的方式耦合到主晶体管的漏极。主晶体管是源极退化的。因为取消晶体管的栅极没有耦合到LNA的差分输入引线，所以LNA的输入电容减小。由于存在两个阶段，由于在子阈值区域偏置的取消晶体管而导入到LNA输出中的噪声被减小。第一级涉及主晶体管，第二级涉及取消晶体管。通过增加第一级的增益并降低第二级的增益，保持整体LNA增益，同时降低子阈值偏置晶体管对LNA输出有贡献的噪声。

7. 发明申请

WO2018044472A1 RECONFIGURABLE POWER AMPLIFIER 审中-公开
标题翻译：可重新配置的功率放大器
公开(公告)号：WO2018044472A1
公开(公告)日：2018-03-08
申请号：PCT/US2017/044939
申请日：2017-08-01
申请人： QUALCOMM INCORPORATED
发明人： CASSIA, Marco , CABANILLAS, Jose
IPC分类号： H03F1/02 , H03F1/56 , H03F3/21 , H03F3/72 , H03G1/00
CPC分类号： H03F3/217 , H03F1/0277 , H03F1/0288 , H03F1/56 , H03F1/565 , H03F3/19 , H03F3/211 , H03F3/2171 , H03F3/2173 , H03F3/72 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/408 , H03F2200/411 , H03F2200/451 , H03F2203/21103 , H03F2203/21136 , H03F2203/21139 , H03F2203/21175 , H03F2203/7215 , H03F2203/7221 , H03F2203/7236 , H03G1/00 , H03G1/0088 , H03G3/3042 , H03G2201/504 , H03G2201/506 , H04B1/40 , H04B1/401
摘要： A power amplifier circuit, including: an input node configured to receive a radio frequency (RF) signal; an output node configured to output an amplified RF signal; a main path switchably coupled between the input node and the output node, and including a first plurality of amplification stages to generate a first amplified RF signal; a bypass path switchably coupled between the input node and the output node, and including at least one second amplification stage to generate a second amplified RF signal; and a coupling switch configured to reuse at least a portion of the bypass path to drive the main path to generate a third amplified RF signal.
摘要翻译：一种功率放大器电路，包括：输入节点，被配置为接收射频（RF）信号; 输出节点，被配置为输出放大的RF信号; 主路径，可切换地耦合在所述输入节点和所述输出节点之间，并且包括第一多个放大级以生成第一放大RF信号; 旁路路径，可切换地耦合在所述输入节点和所述输出节点之间，并且包括至少一个第二放大级以生成第二放大RF信号; 以及耦合开关，其被配置为重新使用旁路路径的至少一部分来驱动主路径以生成第三放大RF信号。

8. 发明申请

WO2009129330A1 METHOD AND APPARATUS FOR PROCESSING A COMMUNICATION SIGNAL IN A RECEIVER 审中-公开
标题翻译：在接收机中处理通信信号的方法和装置
公开(公告)号：WO2009129330A1
公开(公告)日：2009-10-22
申请号：PCT/US2009/040701
申请日：2009-04-15
申请人： QUALCOMM INCORPORATED , GUDEM, Prasad, S. , CABANILLAS, Jose , CHANG, Li-Chung , LIU, Li
发明人： GUDEM, Prasad, S. , CABANILLAS, Jose , CHANG, Li-Chung , LIU, Li
IPC分类号： H04B1/10
CPC分类号： H04B1/109 , H03F1/3205 , H03F1/3211 , H03F3/193 , H03F3/245
摘要： A receiver includes a jammer detector configured to detect the presence or the absence of jamming in a communication signal within a gain state. The receiver further includes an amplifier configured to amplify the communication signal in a high linearity receiving mode or a low linearity receiving mode, wherein the high linearity receiving mode corresponds with a lower gain for the gain state in the amplifier relative to that of the low linearity receiving mode. In addition, the receiver includes a processing unit coupled to the jammer detector, the processing unit being configured to control the amplifier to amplify the communication signal in either the high linearity receiving mode or the low linearity receiving mode, based on the output of the jammer detector detecting the presence or the absence of jamming in the communication signal. A method is also provided for processing a communication signal in a receiver.
摘要翻译：接收机包括干扰检测器，其被配置为检测在增益状态内的通信信号中存在或不存在干扰。接收器还包括放大器，被配置为以高线性度接收模式或低线性度接收模式放大通信信号，其中高线性度接收模式对应于放大器相对于低线性度的增益状态的较低增益接收模式。此外，接收机包括耦合到干扰检测器的处理单元，该处理单元被配置为基于干扰信号的输出来控制放大器以高线性接收模式或低线性接收模式放大通信信号检测器检测通信信号中是否存在干扰。还提供了一种用于处理接收机中的通信信号的方法。

9. 发明申请

WO2009036080A1 COMMON MODE SIGNAL ATTENUATION FOR A DIFFERENTIAL DUPLEXER 审中-公开
标题翻译：差分双工器的共模信号衰减
公开(公告)号：WO2009036080A1
公开(公告)日：2009-03-19
申请号：PCT/US2008/075881
申请日：2008-09-10
申请人： QUALCOMM INCORPORATED , CABANILLAS, Jose , GUDEM, Prasad, S. , KWOK, Sai, Chong , LOVE, David
发明人： CABANILLAS, Jose , GUDEM, Prasad, S. , KWOK, Sai, Chong , LOVE, David
IPC分类号： H04B1/52
CPC分类号： H04B1/52 , H04B1/18
摘要： Techniques for attenuating undesired signal components from a differential duplexer are described. The duplexer provides a differential received signal at RX+ and RX- ports. This differential received signal includes an undesired common mode signal, which may come from a transmit signal. The common mode signal is attenuated with a common mode trap in an impedance matching network coupled to the RX+ and RX- ports. The matching network includes a first passive circuit coupled between the RX+ port and a first node, a second passive circuit coupled between the RX- port and a second node, and the common mode trap coupled between the first and second nodes. In one design, the common mode trap includes a first inductor coupled between the first node and a common node, a second inductor coupled between the second node and the common node, and a capacitor coupled between the common node and circuit ground.
摘要翻译：描述了用于衰减来自差分双工器的不需要的信号分量的技术。双工器在RX +和RX-端口提供差分接收信号。该差分接收信号包括可能来自发射信号的不期望的共模信号。在耦合到RX +和RX-端口的阻抗匹配网络中，共模信号被一个共模陷波衰减。匹配网络包括耦合在RX +端口和第一节点之间的第一无源电路，耦合在RX端口和第二节点之间的第二无源电路以及耦合在第一和第二节点之间的共模陷阱。在一种设计中，共模阱包括耦合在第一节点和公共节点之间的第一电感器，耦合在第二节点和公共节点之间的第二电感器，以及耦合在公共节点和电路接地之间的电容器。

10. 发明申请

WO2008112800A3 WIRELESS RECEIVER WITH NOTCH FILTER TO REDUCE EFFECTS OF TRANSMIT SIGNAL LEAKAGE 审中-公开
公开(公告)号：WO2008112800A3
公开(公告)日：2008-09-18
申请号：PCT/US2008/056711
申请日：2008-03-12
申请人： QUALCOMM INCORPORATED , CHANG, Li-Chung , GUDEM, Prasad S. , CABANILLAS, Jose
发明人： CHANG, Li-Chung , GUDEM, Prasad S. , CABANILLAS, Jose
IPC分类号： H04B1/52 , H04B1/10
摘要： This disclosure describes techniques for reducing adverse effects of TX signal leakage in a full-duplex, wireless communication device. The techniques make use of a notch filter to reject TX signal leakage in a signal processed in the RX path of the wireless communication device. The notch filter may be constructed as a complex notch filter using passive resistor and capacitor components to produce a notch frequency that attenuates TX signal leakage components in a desired signal. The notch filter may be applied to a down-converted, baseband signal produced by a passive mixer.

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