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61. 发明申请

WO2014066691A3 THRESHOLD TRACKING BIAS VOLTAGE FOR MIXERS 审中-公开
公开(公告)号：WO2014066691A3
公开(公告)日：2014-05-01
申请号：PCT/US2013/066696
申请日：2013-10-24
申请人： QUALCOMM INCORPORATED
发明人： ZHUO, Wei , KHATRI, Himanshu , CHOKSI, Ojas M.
IPC分类号： H03F1/30 , H03D7/12
摘要： Bias voltage generators that can generate variable bias voltages for transistors in mixers and other circuits are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit (IC)) includes at least one transistor and a bias voltage generator. The transistor(s) have a threshold voltage and receive a bias voltage. The bias voltage generator generates the bias voltage based on changes to the threshold voltage of the transistor(s), e.g., due to IC process and/or temperature. In an exemplary design, the bias voltage generator includes a replica transistor that tracks the transistor(s) and an op-amp that provides a gate voltage for the replica transistor. The bias voltage is generated based on the gate voltage. The bias voltage generator may generate the bias voltage (i) to track the threshold voltage of the transistor(s) in a first mode or (ii) based on a fixed voltage in a second mode.

62. 发明申请

WO2014066424A1 AMPLIFIERS WITH SHUNT SWITCHES 审中-公开
标题翻译：放大器与分路开关
公开(公告)号：WO2014066424A1
公开(公告)日：2014-05-01
申请号：PCT/US2013/066234
申请日：2013-10-22
申请人： QUALCOMM INCORPORATED
发明人： KHATRI, Himanshu , CHOKSI, Ojas M. , ZHUO, Wei
IPC分类号： H03F3/72 , H03F3/195 , H03F1/02 , H03F1/22 , H03F3/21
CPC分类号： H03F3/72 , H03F1/0277 , H03F1/223 , H03F3/195 , H03F3/211 , H03F2200/111 , H03F2200/294 , H03F2200/429 , H03F2203/21109 , H03F2203/7209 , H03F2203/7215 , H03F2203/7236 , H03F2203/7239 , H03G3/3052
摘要： Amplifiers (460) with shunt switches (430) to mitigate interference are disclosed. In an exemplary design, an apparatus (400) includes an amplifier (460) and a shunt switch (430). The amplifier (460) has an input (450) operatively coupled to an input/output, I/O, pad (410) of an integrated circuit (IC) chip. The shunt switch (430) grounds the amplifier (460) when the shunt switch (430) is closed. The shunt switch (430) is isolated from the I/O pad (410) and the amplifier input (450). The amplifier (460) may be a low noise amplifier, LNA, or some other type of amplifier. In an exemplary design, the shunt switch (430) is isolated from the I/O pad (410) by a series switch. The series switch and the shunt switch (430) may be closed when the amplifier (460) is disabled and may be opened (460) when the amplifier is enabled.
摘要翻译：公开了具有分流开关（430）以减轻干扰的放大器（460）。在示例性设计中，装置（400）包括放大器（460）和分流开关（430）。放大器（460）具有可操作地耦合到集成电路（IC）芯片的输入/输出I / O，焊盘（410）的输入（450）。当分流开关（430）关闭时，分流开关（430）将放大器（460）接地。分路开关（430）与I / O焊盘（410）和放大器输入端（450）隔离。放大器（460）可以是低噪声放大器，LNA或一些其他类型的放大器。在示例性设计中，分流开关（430）通过串联开关与I / O焊盘（410）隔离。当放大器启用时，当放大器（460）被禁用并且可以被打开（460）时，串联开关和分流开关（430）可以闭合。

63. 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。

64. 发明申请

WO2014043270A1 RECEIVER ARCHITECTURE 审中-公开
标题翻译：接收体系结构
公开(公告)号：WO2014043270A1
公开(公告)日：2014-03-20
申请号：PCT/US2013/059308
申请日：2013-09-11
申请人： QUALCOMM INCORPORATED
发明人： CHANG, Li-Chung , GUDEM, Prasad Srinivasa Siva , BOSSU, Frederic , HOLENSTEIN, Christian
IPC分类号： H04B1/00 , H04B1/28
CPC分类号： H04J3/00 , H03F3/72 , H04B1/0064 , H04B1/0071
摘要： A receiver architecture for carrier aggregation is disclosed. In an exemplary design, an apparatus (e.g., a wireless device, a circuit module, etc.) includes a plurality of low noise amplifiers (LNAs), a plurality of switches, and at least one downconverter. The LNAs receive and amplify at least one input radio frequency (RF) signal and provide at least one amplified RF signal. The switches are coupled to the outputs of the plurality of LNAs. The at least one downconverter is coupled to the plurality of switches, downconverts the at least one amplified RF signal, and provides at least one downconverted signal. The switches reduce the number of downconverters needed to support reception of transmissions on multiple sets of carriers via multiple receive antennas. The LNAs and the switches may be implemented on at least one front-end module or a back-end module. The downconverter(s) are implemented on the back-end module.
摘要翻译：公开了用于载波聚合的接收机架构。在示例性设计中，装置（例如，无线装置，电路模块等）包括多个低噪声放大器（LNA），多个开关和至少一个下变频器。 LNA接收和放大至少一个输入射频（RF）信号并提供至少一个放大的RF信号。开关耦合到多个LNA的输出端。所述至少一个下变频器耦合到所述多个开关，对所述至少一个放大的RF信号进行下变频，并提供至少一个下变频信号。交换机减少了通过多个接收天线支持在多组载波上接收传输所需的下变频器的数量。 LNA和交换机可以在至少一个前端模块或后端模块上实现。下变频器在后端模块上实现。

65. 发明申请

WO2014026030A1 MULTI-CASCODE AMPLIFIER BIAS TECHNIQUES 审中-公开
标题翻译：多芯片放大器偏置技术
公开(公告)号：WO2014026030A1
公开(公告)日：2014-02-13
申请号：PCT/US2013/054187
申请日：2013-08-08
申请人： QUALCOMM INCORPORATED
发明人： SU, Wenjun , NARATHONG, Chiewcharn , YIN, Guangming , HADJICHRISTOS, Aristotele
IPC分类号： H03F1/22 , H03F3/193
CPC分类号： H03F1/223 , H03F3/193
摘要： Techniques for generating bias voltages for a multi-cascode amplifier. In an aspect, a multi-cascode bias network is provided, each transistor in the bias network being a replica of a corresponding transistor in the multi-cascode amplifier, which enables accurate biasing of the transistors in the multi-cascode amplifier. In a further aspect, a voltage supply for the multi-cascode amplifier is provided separately from a voltage supply for the replica bias network, to advantageously decouple variations in the amplifier voltage supply from the bias network voltage supply. In yet another aspect, the bias voltages of transistors in the multi-cascode amplifier may be configured by adjusting the impedance of resistive voltage dividers coupled to the transistor gate biases. As the gain of the amplifier depends on the bias voltages of the cascode amplifiers, the gain of the amplifier may advantageously be adjusted in this manner without introducing a variable gain element directly in the amplifier signal path.
摘要翻译：用于产生多共源共栅放大器偏置电压的技术。在一方面，提供了多共源共栅偏压网络，偏置网络中的每个晶体管是多级共源共栅放大器中对应的晶体管的复制品，其使多级共源共栅放大器中的晶体管能够精确偏置。在另一方面，用于多重共源共栅放大器的电压源与用于复制偏压网络的电压源分开设置，以有利地将放大器电压源的偏差与偏压网络电压电源分离。在另一方面，多并联放大器中的晶体管的偏置电压可以通过调整耦合到晶体管栅极偏置的电阻分压器的阻抗来配置。由于放大器的增益取决于共源共栅放大器的偏置电压，所以可以以这种方式有利地调节放大器的增益，而不将可变增益元件直接引入放大器信号路径。

66. 发明申请

WO2014011299A1 RECONFIGURABLE LNA FOR INCREASED JAMMER REJECTION 审中-公开
标题翻译：用于增加JAMMER拒绝的可重构LNA
公开(公告)号：WO2014011299A1
公开(公告)日：2014-01-16
申请号：PCT/US2013/037241
申请日：2013-04-18
申请人： QUALCOMM INCORPORATED
发明人： WANG, Cheng-Han , ZHAO, Liang , KIM, Hong Sun , KO, Jin-Su
IPC分类号： H03F3/193 , H03F1/56 , H03F3/45 , H04B1/10
CPC分类号： H03F3/45188 , H03F1/565 , H03F3/193 , H03F2200/294 , H03F2200/546 , H03F2203/45386 , H03F2203/45641 , H03F2203/45726 , H04B1/109 , H04B1/3805
摘要： A reconfigurable LNA (104) for increased jammer rejection is disclosed. An exemplary embodiment includes an LNA (104) having a tunable resonant frequency, and a detector (132) configured to output a control signal to tune the resonant frequency of the LNA (104) to increase jammer suppression. An exemplary method includes detecting if a jammer is present, tuning a resonant frequency of an LNA (104) away from the jammer to increase jammer rejection if the jammer is present, and tuning the resonant frequency of the LNA (104) to a selected operating frequency if the jammer is not present.
摘要翻译：公开了一种用于增加干扰抑制的可重构LNA（104）。示例性实施例包括具有可调谐谐振频率的LNA（104）和被配置为输出控制信号以调谐LNA（104）的谐振频率以增加干扰抑制的检测器（132）。一种示例性方法包括检测干扰信号是否存在，如果干扰信号存在，则调谐LNA（104）的谐振频率远离干扰信号以增加干扰抑制，并且将LNA（104）的谐振频率调谐到所选择的操作频率如果干扰不存在。

67. 发明申请

WO2013112631A1 MULTI-MODE BYPASS DRIVER AMPLIFIER WITH TUNABLE LOAD MATCHING 审中-公开
标题翻译：多模式旁路驱动放大器，具有可调载荷匹配
公开(公告)号：WO2013112631A1
公开(公告)日：2013-08-01
申请号：PCT/US2013/022806
申请日：2013-01-23
申请人： QUALCOMM INCORPORATED
发明人： ZHAO, Yu , PLETCHER, Nathan M.
IPC分类号： H03F1/02 , H03F1/56 , H03F3/195 , H03F3/24 , H03F3/72 , H03F3/21
CPC分类号： H03F1/0277 , H03F1/565 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/72 , H03F2200/213 , H03F2200/222 , H03F2200/318 , H03F2200/378 , H03F2200/387 , H03F2200/411 , H03F2203/21136 , H03F2203/21175 , H03F2203/7233 , H03F2203/7239
摘要： A multi-mode driver amplifier with tunable load matching is disclosed. In an exemplary design, an apparatus includes a multi-mode driver amplifier and a tunable impedance matching circuit. The driver amplifier amplifies an input radio frequency, RF, signal and provides an amplified RF signal. The tunable impedance matching circuit matches an output impedance of the driver amplifier. The apparatus may include a main transmit path (510) and a bypass transmit path (512). The bypass transmit path (512) may include the driver amplifier (542) and the tunable impedance matching circuit (552) and no power amplifier. The main transmit path (510) may include a second driver amplifier (540) and a power amplifier (560). The main transmit path (510) may be selected for transmit power levels higher than a threshold level, and the bypass transmit path (512) may be selected for transmit power levels lower than the threshold level.
摘要翻译：公开了一种具有可调负载匹配的多模驱动放大器。在示例性设计中，装置包括多模式驱动器放大器和可调谐阻抗匹配电路。驱动器放大器放大输入射频，RF信号，并提供放大的RF信号。可调阻抗匹配电路匹配驱动放大器的输出阻抗。该装置可以包括主发射路径（510）和旁路发射路径（512）。旁路发射路径（512）可以包括驱动放大器（542）和可调谐阻抗匹配电路（552），而不包括功率放大器。主发射路径（510）可以包括第二驱动放大器（540）和功率放大器（560）。可以选择主发射路径（510）用于高于阈值电平的发射功率电平，并且可以选择旁路发射路径（512）用于低于阈值电平的发射功率电平。

68. 发明申请

WO2013109937A1 BASEBAND FILTER AND UPCONVERTER WITH CONFIGURABLE EFFICIENCY FOR WIRELESS TRANSMITTERS 审中-公开
标题翻译：带无线发射机的配置滤波器和基带滤波器
公开(公告)号：WO2013109937A1
公开(公告)日：2013-07-25
申请号：PCT/US2013/022216
申请日：2013-01-18
申请人： QUALCOMM INCORPORATED
发明人： ASURI, Bhushan Shanti , CHAMAS, Ibrahim Ramez
IPC分类号： H03D7/14
CPC分类号： H03D7/1441 , H03D2200/0084
摘要： A baseband filter and upconverter with configurable efficiency for use in wireless transmitters is disclosed. In an exemplary embodiment, an apparatus is provided that includes a baseband filter having configurable efficiency, and an upconverter having configurable efficiency and coupled to the baseband filter. The baseband filter and upconverter are configured to operate at a first efficiency level in a first output power range and to operate at a second efficiency level in a second output power range.
摘要翻译：公开了一种具有可配置效率的基带滤波器和上变频器，用于无线发射机。在示例性实施例中，提供了一种包括具有可配置效率的基带滤波器和具有可配置效率并耦合到基带滤波器的上变频器的装置。基带滤波器和上变频器被配置为在第一输出功率范围内以第一效率水平操作并且在第二输出功率范围内以第二效率水平操作。

69. 发明申请

WO2013109933A1 HIGH EFFICIENCY TRANSMITTER 审中-公开
标题翻译：高效发射机
公开(公告)号：WO2013109933A1
公开(公告)日：2013-07-25
申请号：PCT/US2013/022208
申请日：2013-01-18
申请人： QUALCOMM INCORPORATED
发明人： ASURI, Bhushan Shanti , CHAMAS, Ibrahim Ramez , GUDEM, Prasad Srinivasa Siva
IPC分类号： H04B1/04
CPC分类号： H04B1/0483 , H03F1/02 , H03F3/24 , H04B2001/045
摘要： A high efficiency transmitter is disclosed. In an exemplary embodiment, a transmitter is provided that includes a first transmission path configured to receive a baseband signal and generate a first RF output when output power is in a first output power range, and a second transmission path configured to receive the baseband signal and generate a second RF output when the output power is in a second output power range.
摘要翻译：公开了一种高效率的发射机。在示例性实施例中，提供了一种发射机，其包括：第一传输路径，被配置为在输出功率处于第一输出功率范围内时接收基带信号并产生第一RF输出;第二传输路径被配置为接收基带信号;以及当输出功率处于第二输出功率范围时，产生第二RF输出。

70. 发明申请

WO2013090851A1 TECHNIQUES FOR PGA LINEARITY 审中-公开
标题翻译： PGA线性的技术
公开(公告)号：WO2013090851A1
公开(公告)日：2013-06-20
申请号：PCT/US2012/069948
申请日：2012-12-14
申请人： QUALCOMM INCORPORATED
发明人： XIE, Weijun Serena
IPC分类号： H03F3/45 , H03F1/32 , H03G1/00 , H03G3/00
CPC分类号： H03F3/45475 , H03F1/3211 , H03F2203/45522 , H03F2203/45534 , H03F2203/45591 , H03F2203/45616 , H03G1/0088 , H03G3/001
摘要： Techniques for designing a highly linear programmable gain amplifier, PGA. In an aspect, the PGA includes a plurality of feedback switches selectively coupling an output (von, Vop) of an operational amplifier, op amp (OA), to an input (Vp, Vn) of the op amp (OA) via a corresponding series-coupled feedback resistance. The PGA may further include a plurality of input switches selectively coupling an input (vp, Vn) of the op amp (OA) to a PGA input voltage (Vinp, Vinn) via a corresponding series-coupled input resistance. The switches are designed such that the ratio of on-resistances between any two switches is substantially equal to the ratio of the corresponding series-coupled resistances. In an exemplary embodiment, transistors implementing the switches may be accordingly sized to implement the desired on-resistance ratios.
摘要翻译：设计高度线性可编程增益放大器PGA的技术。在一方面，PGA包括多个反馈开关，其选择性地将运算放大器（op）（OA）的输出（von，Vop）与运算放大器（OA）的输入（Vp，Vn）经由相应的串联反馈电阻。 PGA还可以包括多个输入开关，其经由相应的串联耦合输入电阻选择性地将运算放大器（OA）的输入（vp，Vn）耦合到PGA输入电压（Vinp，Vinn）。开关被设计成使得任何两个开关之间的导通电阻的比率基本上等于相应串联电阻的比率。在示例性实施例中，实现开关的晶体管的尺寸可以相应地大小以实现期望的导通电阻比。

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