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1. 发明申请

WO2010135711A1 ADAPTIVE PARAMETRIC POWER AMPLIFIER PROTECTION CIRCUIT 审中-公开
标题翻译：自适应参数功率放大器保护电路
公开(公告)号：WO2010135711A1
公开(公告)日：2010-11-25
申请号：PCT/US2010/035863
申请日：2010-05-21
申请人： QUALCOMM INCORPORATED , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal, S.
发明人： HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal, S.
IPC分类号： H04B1/04 , H03F1/52
CPC分类号： H04B1/0466 , H03F1/523 , H03F3/24 , H03F2200/447 , H03F2200/468
摘要： A device including a gain control element coupled prior to or within a radio frequency (RF) power amplifier (PA) with an adaptive parametric PA protection circuit is described. In an exemplary embodiment, the device includes a gain control element coupled prior to a radio frequency power amplifier with a power stage with corresponding transistor breakdown threshold values, having an adaptive parametric PA protection circuit configured to receive at least one power stage drain-source voltage parameter value, at least one power stage drain-gate voltage parameter value, and at least one power stage drain-source current parameter value, and including an adaptive parametric PA protection circuit having a first section for processing the parameter values and a second section for generating a gain correction signal to adjust the gain control element with optimal power added efficiency (PAE) for the power stage within the corresponding transistor breakdown threshold values.
摘要翻译：描述了在具有自适应参数PA保护电路的射频（RF）功率放大器（PA）之前或之内耦合的增益控制元件的装置。在示例性实施例中，该装置包括增益控制元件，该增益控制元件在具有相应的晶体管击穿阈值的功率级的射频功率放大器之前耦合，具有自适应参数PA保护电路，该自适应参数PA保护电路被配置为接收至少一个功率级漏 - 源电压参数值，至少一个功率级漏极栅极电压参数值和至少一个功率级漏源电流参数值，并且包括具有用于处理参数值的第一部分的自适应参数PA保护电路和用于产生增益校正信号，以在相应的晶体管击穿阈值内对功率级的最佳功率附加效率（PAE）调节增益控制元件。

2. 发明申请

WO2007048113A3 DIVERSITY RECEIVER FOR WIRELESS COMMUNICATION 审中-公开
公开(公告)号：WO2007048113A3
公开(公告)日：2007-04-26
申请号：PCT/US2006/060082
申请日：2006-10-19
申请人： QUALCOMM INCORPORATED , SAMPSON, Wesley , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal S.
发明人： SAMPSON, Wesley , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal S.
IPC分类号： H04B1/40 , H04B7/08
摘要： A diversity receiver capable of receiving a CDMA system (e.g., a W-CDMA system) and a TDMA system (e.g., a GSM system), with receive diversity for at least one system, is described. W-CDMA is often referred to as UMTS. In one design, the diversity receiver includes a first receiver for GSM and a second receiver for UMTS. The first receiver may be implemented with one receiver design, may be spec-compliant for GSM, and may also support UMTS. The second receiver may be implemented with another receiver design, may be spec-compliant for UMTS, and may also support GSM. The first receiver may include a lowpass filter having a bandwidth that is adjustable for GSM and UMTS. The second receiver may include a bandpass filter used to attenuate a transmit frequency range for UMTS. Each receiver may include circuit blocks that are used for both GSM and UMTS.

3. 发明申请

WO2011022553A1 PROTECTION CIRCUIT FOR POWER AMPLIFIER 审中-公开
标题翻译：功率放大器保护电路
公开(公告)号：WO2011022553A1
公开(公告)日：2011-02-24
申请号：PCT/US2010/046025
申请日：2010-08-19
申请人： QUALCOMM INCORPORATED , SU, Wenjun , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal, S. , CASSIA, Marco
发明人： SU, Wenjun , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal, S. , CASSIA, Marco
IPC分类号： H03F1/52 , H03F3/24 , H03G3/30 , G01R19/04 , H04W52/08
CPC分类号： H03F1/52 , H03F3/24 , H03F2200/435 , H03F2200/78 , H03G3/3042 , H04B2001/0408
摘要： Techniques for protecting a power amplifier (PA) are described. In an exemplary design, an apparatus includes a PA module (310) to amplify an input RF signal and provide an output RF signal and a protection circuit (320) to control a transmitter gain to protect the PA module against high peak voltage. In an exemplary design, the protection circuit (329) includes a set of comparators (370) to quantize an analog input signal and provide digital comparator output signals used to adjust the transmitter gain. In another exemplary design, the protection circuit reduces and increases the transmitter gain with hysteresis. In yet another exemplary design, the protection circuit has faster response to rising amplitude than falling amplitude of the output RF signal. The hysteresis and/or the different rise and fall responses may allow the protection circuit to avoid toggling the transmitter gain under severe load mismatch and to handle time-varying envelope due to amplitude modulation.
摘要翻译：描述了用于保护功率放大器（PA）的技术。在示例性设计中，装置包括用于放大输入RF信号并提供输出RF信号的PA模块（310）和用于控制发射机增益以保护PA模块免受高峰值电压的保护电路（320）。在示例性设计中，保护电路（329）包括一组比较器（370），用于量化模拟输入信号并提供用于调整发射机增益的数字比较器输出信号。在另一示例性设计中，保护电路通过滞后减小并增加发射机增益。在又一示例性设计中，保护电路比对输出RF信号的下降幅度具有对振幅上升的响应更快。迟滞和/或不同的上升和下降响应可以允许保护电路避免在严重负载不匹配的情况下切换发射机增益，并且由于幅度调制来处理时变包络。

4. 发明申请

WO2011011757A1 POWER AMPLIFIER WITH SWITCHED OUTPUT MATCHING FOR MULTI-MODE OPERATION 审中-公开
标题翻译：具有多模操作的开关量输出匹配功率放大器
公开(公告)号：WO2011011757A1
公开(公告)日：2011-01-27
申请号：PCT/US2010/043156
申请日：2010-07-23
申请人： QUALCOMM Incorporated , PLETCHER, Nathan M. , HADJICHRISTOS, Aristotele , ZHAO, Yu , NEJATI, Babak
发明人： PLETCHER, Nathan M. , HADJICHRISTOS, Aristotele , ZHAO, Yu , NEJATI, Babak
IPC分类号： H04B1/04 , H03F1/56
CPC分类号： H04B1/0458 , H03F1/56 , H03F3/245 , H04B1/406
摘要： Exemplary embodiments are directed to a transmitter with a power amplifier and a switched output matching circuit implementing a plurality of output paths for a plurality of operating modes is described. The power amplifier receives an input RF signal and provides an amplified RF signal. An output matching network performs impedance transformation from low impedance at the power amplifier output to higher impedance at the matching network output. The plurality of output paths are coupled to the output matching network. Each output path provides a different target output impedance for the power amplifier and routes the amplified RF signal from the power amplifier to an antenna when that output path is selected. Each output path may include a matching network coupled in series with a switch. The matching network provides the target output impedance for the power amplifier when the output path is selected. The switch couples or decouples the output path to/from the power amplifier.
摘要翻译：示例性实施例涉及具有功率放大器和实现用于多个操作模式的多个输出路径的切换输出匹配电路的发射机。功率放大器接收输入RF信号并提供放大的RF信号。输出匹配网络执行从功率放大器输出端的低阻抗到匹配网络输出端的较高阻抗的阻抗变换。多个输出路径耦合到输出匹配网络。当选择该输出路径时，每个输出路径为功率放大器提供不同的目标输出阻抗，并将放大的RF信号从功率放大器路由到天线。每个输出路径可以包括与开关串联耦合的匹配网络。当选择输出路径时，匹配网络为功率放大器提供目标输出阻抗。开关将输出路径耦合到/从功率放大器解耦。

5. 发明申请

WO2010148407A2 POWER AND IMPEDANCE MEASUREMENT CIRCUITS FOR A WIRELESS COMMUNICATION DEVICE 审中-公开
标题翻译：无线通信设备的功率和阻抗测量电路
公开(公告)号：WO2010148407A2
公开(公告)日：2010-12-23
申请号：PCT/US2010/039376
申请日：2010-06-21
申请人： QUALCOMM INCORPORATED , SEE, Puay Hoe , BALLANTYNE, Gary John , SAHOTA, Gurkanwal Singh , HADJICHRISTOS, Aristotele , CICALINI, Alberto
发明人： SEE, Puay Hoe , BALLANTYNE, Gary John , SAHOTA, Gurkanwal Singh , HADJICHRISTOS, Aristotele , CICALINI, Alberto
IPC分类号： H04B1/04
CPC分类号： H04B1/0458 , H03H7/40
摘要： Exemplary embodiments disclosed are directed to power and impedance measurement circuits that may be used to measure power and/or impedance are described. A measurement circuit may include a sensor and a computation unit. The sensor may sense (i) a first voltage signal across a series circuit coupled to a load to obtain a first sensed signal and (ii) a second voltage signal at a designated end of the series circuit to obtain a second sensed signal. The sensor may mix (i) a first version of the first sensed signal with a first version of the second sensed signal to obtain a first sensor output and (ii) a second version of the first sensed signal with a second version of the second sensed signal to obtain a second sensor output. The computation unit may determine the impedance and/or delivered power at the designated end of the series circuit based on the sensor outputs.
摘要翻译：所公开的示例性实施例涉及可用于测量功率和/或阻抗的功率和阻抗测量电路。测量电路可以包括传感器和计算单元。传感器可以感测（i）跨耦合到负载的串联电路的第一电压信号以获得第一感测信号，以及（ii）串联电路的指定端的第二电压信号以获得第二感测信号。传感器可以将（i）第一感测信号的第一版本与第二感测信号的第一版本混合以获得第一传感器输出，以及（ii）第一感测信号的第二版本，具有第二感测的第二版本信号以获得第二传感器输出。计算单元可以基于传感器输出来确定串联电路的指定端处的阻抗和/或传递功率。

6. 发明申请

WO2013025953A1 LOW NOISE AMPLIFIERS WITH COMBINED OUTPUTS 审中-公开
标题翻译：具有组合输出的低噪声放大器
公开(公告)号：WO2013025953A1
公开(公告)日：2013-02-21
申请号：PCT/US2012/051237
申请日：2012-08-16
申请人： QUALCOMM INCORPORATED , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal Singh
发明人： HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal Singh
IPC分类号： H04B1/00 , H04B1/40 , H03F3/45
CPC分类号： H04B1/0057 , H03F1/0277 , H03F1/223 , H03F1/56 , H03F3/211 , H03F3/45179 , H03F3/68 , H03F3/72 , H03F2200/222 , H03F2200/294 , H03F2200/429 , H03F2203/7203 , H03F2203/7236 , H04B1/406
摘要： Multiple low noise amplifiers (LNAs) with combined outputs are disclosed. In an exemplary design, an apparatus includes a front-end module and an integrated circuit (IC). The front-end module includes a plurality of LNAs having outputs that are combined. The IC includes receive circuits coupled to the plurality of LNAs via a single interconnection. In an exemplary design, each of the plurality of LNAs may be enabled or disabled via a respective control signal for that LNA. The front-end module may also include receive filters coupled to the plurality of LNAs and a switchplexer coupled to the receive filters. The front-end module may further include at least one power amplifier, and the IC may further include transmit circuits coupled to the at least one power amplifier.
摘要翻译：公开了具有组合输出的多个低噪声放大器（LNA）。在示例性设计中，装置包括前端模块和集成电路（IC）。前端模块包括具有组合的输出的多个LNA。 IC包括经由单个互连耦合到多个LNA的接收电路。在示例性设计中，可以经由用于该LNA的相应控制信号来启用或禁用多个LNA中的每一个。前端模块还可以包括耦合到多个LNA的接收滤波器和耦合到接收滤波器的交换器。前端模块还可以包括至少一个功率放大器，并且IC还可以包括耦合到至少一个功率放大器的发射电路。

7. 发明申请

WO2011017368A1 MULTI-STAGE IMPEDANCE MATCHING 审中-公开
标题翻译：多级阻抗匹配
公开(公告)号：WO2011017368A1
公开(公告)日：2011-02-10
申请号：PCT/US2010/044306
申请日：2010-08-03
申请人： QUALCOMM INCORPORATED , NEJATI, Babak , ZHAO, Yu , PLETCHER, Nathan M. , HADJICHRISTOS, Aristotele , SEE, Puay Hoe
发明人： NEJATI, Babak , ZHAO, Yu , PLETCHER, Nathan M. , HADJICHRISTOS, Aristotele , SEE, Puay Hoe
IPC分类号： H03F1/56 , H03F3/72
CPC分类号： H03F1/565 , H03F3/211 , H03F3/72
摘要： Exemplary techniques for performing impedance matching are described. In an exemplary embodiment, the apparatus may include an amplifier (e.g., a power amplifier) coupled to first and second matching circuits. The first matching circuit may include multiple stages coupled to a first node and may provide input impedance matching for the amplifier. The second matching circuit may include multiple stages coupled to a second node and may provide output impedance matching for the amplifier. At least one switch may be coupled between the first and second nodes and may bypass or select the amplifier. The first and second nodes may have a common impedance. The apparatus may further include a second amplifier coupled in parallel with the amplifier and further to the matching circuits. The second matching circuit may include a first input stage coupled to the amplifier, a second input stage coupled to the second amplifier, and a second stage coupled to the two input stages via switches.
摘要翻译：描述了用于执行阻抗匹配的示例性技术。在示例性实施例中，该装置可以包括耦合到第一和第二匹配电路的放大器（例如功率放大器）。第一匹配电路可以包括耦合到第一节点的多个级并且可以为放大器提供输入阻抗匹配。第二匹配电路可以包括耦合到第二节点的多个级并且可以为放大器提供输出阻抗匹配。至少一个开关可以耦合在第一和第二节点之间，并且可以旁路或选择放大器。第一和第二节点可以具有公共阻抗。该装置还可以包括与放大器并联并且进一步耦合到匹配电路的第二放大器。第二匹配电路可以包括耦合到放大器的第一输入级，耦合到第二放大器的第二输入级，以及经由开关耦合到两个输入级的第二级。

8. 发明申请

WO2010132618A1 MULTI-MODE MULTI-BAND POWER AMPLIFIER MODULE 审中-公开
标题翻译：多模多功率放大器模块
公开(公告)号：WO2010132618A1
公开(公告)日：2010-11-18
申请号：PCT/US2010/034621
申请日：2010-05-12
申请人： QUALCOMM INCORPORATED , HADJICHRISTOS, Aristotele , SEE, Puay Hoe , NEJATI, Babak , KLEMENS, Guy , FREDERICK, Norman, L., Jr. , SAHOTA, Gurkanwal, Singh , CASSIA, Marco , PLETCHER, Nathan, M. , ZHAO, Yu , MYERS, Thomas, A.
发明人： HADJICHRISTOS, Aristotele , SEE, Puay Hoe , NEJATI, Babak , KLEMENS, Guy , FREDERICK, Norman, L., Jr. , SAHOTA, Gurkanwal, Singh , CASSIA, Marco , PLETCHER, Nathan, M. , ZHAO, Yu , MYERS, Thomas, A.
IPC分类号： H04B1/04
CPC分类号： H04B1/0458 , H03F1/0277 , H03F3/24 , H03F3/72 , H03F2203/7236 , H04B1/0483
摘要： A multi-mode multi-band power amplifier (PA) module is described. In an exemplary design, the PA module includes multiple power amplifiers, multiple matching circuits, and a set of switches. Each power amplifier provides power amplification for its input signal when selected. Each matching circuit provides impedance matching and filtering for its power amplifier and provides a respective output signal. The switches configure the power amplifiers to support multiple modes, with each mode being for a particular radio technology. Each power amplifier supports at least two modes. The PA module may further include a driver amplifier and an additional matching circuit. The driver amplifier amplifies an input signal and provides an amplified signal to the power amplifiers. The additional matching circuit combines the outputs of other matching circuits and provides an output signal with higher output power. The driver amplifier and the power amplifiers can support multiple output power levels.
摘要翻译：描述了多模式多频带功率放大器（PA）模块。在示例性设计中，PA模块包括多个功率放大器，多个匹配电路和一组开关。每个功率放大器在选择时为其输入信号提供功率放大。每个匹配电路为其功率放大器提供阻抗匹配和滤波，并提供相应的输出信号。这些开关配置功率放大器以支持多种模式，每种模式用于特定的无线电技术。每个功率放大器支持至少两种模式。 PA模块还可以包括驱动器放大器和附加匹配电路。驱动器放大器放大输入信号并向功率放大器提供放大的信号。附加匹配电路组合其他匹配电路的输出，并提供具有较高输出功率的输出信号。驱动器放大器和功率放大器可以支持多个输出功率电平。

9. 发明申请

WO2009061838A1 SWITCHABLE-LEVEL VOLTAGE SUPPLIES FOR MULTIMODE COMMUNICATIONS 审中-公开
标题翻译：用于多模通信的可切换电压电源
公开(公告)号：WO2009061838A1
公开(公告)日：2009-05-14
申请号：PCT/US2008/082507
申请日：2008-11-05
申请人： QUALCOMM Incorporated , CASSIA, Marco , HADJICHRISTOS, Aristotele
发明人： CASSIA, Marco , HADJICHRISTOS, Aristotele
IPC分类号： H04B1/04
CPC分类号： H04B1/0475 , H03F1/02 , H03F1/0244 , H03F3/24 , H03F3/45475 , H03F2203/45731 , H04B1/0057 , H04B1/406 , H04B2001/045
摘要： Switchable voltage level supplies for circuitry in a multi-mode communications chipset are disclosed. In an embodiment, a first voltage level is supplied to TX circuitry operating in a first mode having a first set of linearity and/or noise requirements. A second voltage level lower than the first voltage level is supplied to TX circuitry operating in a second mode having a second set of linearity and/or noise requirements looser than the first set of requirements. The first mode may be operation according to the GSM standard, and the second mode may be operation according to the W-CDMA standard.
摘要翻译：公开了一种用于多模式通信芯片组中的电路的可切换电压电平。在一个实施例中，向具有第一组线性和/或噪声要求的第一模式工作的TX电路提供第一电压电平。低于第一电压电平的第二电压电平被提供给具有比第一组要求松动的第二组线性和/或噪声要求的第二模式工作的TX电路。第一模式可以是根据GSM标准的操作，并且第二模式可以是根据W-CDMA标准的操作。

10. 发明申请

WO2011022549A2 DIGITAL TUNABLE INTER-STAGE MATCHING CIRCUIT 审中-公开
标题翻译：数字可调节的级间匹配电路
公开(公告)号：WO2011022549A2
公开(公告)日：2011-02-24
申请号：PCT/US2010/046021
申请日：2010-08-19
申请人： QUALCOMM INCORPORATED , ZHAO, Yu , NEJATI, Babak , PLETCHER, Nathan M. , HADJICHRISTOS, Aristotele
发明人： ZHAO, Yu , NEJATI, Babak , PLETCHER, Nathan M. , HADJICHRISTOS, Aristotele
IPC分类号： H03H7/38
CPC分类号： H03F1/42 , H03F1/223 , H03F3/193 , H03F2200/318 , H03H7/40
摘要： A tunable inter-stage matching circuit that can improve performance is described. In an exemplary design, an apparatus includes a first active circuit (e.g., a driver amplifier), a second active circuit (e.g., a power amplifier), and a tunable inter-stage matching circuit coupled between the first and second active circuits. The tunable inter-stage matching circuit includes a tunable capacitor that can be varied in discrete steps to adjust impedance matching between the first and second active circuits. In an exemplary design, the tunable capacitor includes (i) a plurality of capacitors coupled in parallel and (ii) a plurality of switches coupled to the plurality of capacitors, one switch for each capacitor. Each switch may be turned on to select an associated capacitor or turned off to unselect the associated capacitor. The tunable capacitor may further include a fixed capacitor coupled in parallel with the plurality of capacitors.
摘要翻译：描述了可以提高性能的可调节级间匹配电路。在示例性设计中，装置包括耦合在第一和第二有源电路之间的第一有源电路（例如，驱动器放大器），第二有源电路（例如功率放大器）以及可调谐的级间匹配电路。可调级间匹配电路包括可调电容器，该可调电容器可以在离散步骤中变化以调整第一和第二有源电路之间的阻抗匹配。在示例性设计中，可调电容器包括（i）并联耦合的多个电容器和（ii）耦合到多个电容器的多个开关，每个电容器一个开关。每个开关可以打开以选择关联的电容器或关闭以取消选择关联的电容器。可调电容器还可以包括与多个电容器并联耦合的固定电容器。

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