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公开(公告)号：US20180102740A1
公开(公告)日：2018-04-12
申请号：US15838103
申请日：2017-12-11
Applicant: QUALCOMM Incorporated
Inventor： Li-Chung Chang , Liang Dai , Prasad Srinivasa Siva Gudem
CPC classification number: H03F1/0205 , H03F3/19 , H03F3/211 , H03F2200/294 , H03F2200/451 , H03F2203/21109 , H04B1/006
Abstract: An apparatus includes a first plurality of low noise amplifiers (LNAs) and a cascaded switch configured to route outputs of the first plurality of LNAs to a second plurality of LNAs.
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公开(公告)号：US09692470B2
公开(公告)日：2017-06-27
申请号：US14835569
申请日：2015-08-25
Applicant: QUALCOMM Incorporated
Inventor： Hajir Hedayati , Milad Darvishi , Li-Chung Chang
CPC classification number: H04B1/16 , H03F3/19 , H03F3/211 , H03F2200/294 , H03F2200/451 , H03F2203/21106 , H04B1/109 , H04B1/525 , H04B2001/1063
Abstract: An apparatus includes a low noise amplifier (LNA) having an input configured to receive a radio frequency signal. The apparatus also includes a notch filter coupled to an input of the LNA. The notch filter is configured to attenuate the radio frequency signal at a notch frequency.
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公开(公告)号：US09350310B2
公开(公告)日：2016-05-24
申请号：US13901924
申请日：2013-05-24
Applicant: QUALCOMM Incorporated
Inventor： Ahmed A Youssef , Li-Chung Chang
CPC classification number: H03G3/20 , H03F1/223 , H03F3/193 , H03F3/68 , H03F2200/492 , H03G1/0023 , H04B1/18
Abstract: Techniques for providing a receiver front end supporting carrier aggregation with gain alignment and improved matching across modes. In an aspect, auxiliary circuitry is configurable to selectively enable or disable mutual coupling between a source degeneration inductor of an LNA input transistor and an auxiliary inductor. A negative turns ratio coupling is provided between the inductors, such that the effective inductance of the source degeneration inductor is lowered when mutually coupled to the auxiliary inductor. In a non-carrier aggregation (non-CA) mode, the auxiliary inductor is disabled, while in a carrier aggregation (CA) mode, the auxiliary inductor is enabled. In this manner, using a single transistor, gain alignment across non-CA and CA modes is achieved. Furthermore, matching is preserved across non-CA and CA modes using a single external matching component.
Abstract translation: 用于提供接收机前端的技术，其支持具有增益对准和改进的模式匹配的载波聚合。 在一方面，辅助电路可配置为选择性地启用或禁用LNA输入晶体管的源极退化电感器和辅助电感器之间的互耦合。 在电感器之间提供负匝数比耦合，使得当与辅助电感器相互耦合时，源极退化电感器的有效电感降低。 在非载波聚合（非CA）模式下，辅助电感被禁用，而在载波聚合（CA）模式下，辅助电感被使能。 以这种方式，使用单个晶体管，实现了非CA和CA模式之间的增益对准。 此外，使用单个外部匹配组件在非CA和CA模式之间保留匹配。
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公开(公告)号：US20150341007A1
公开(公告)日：2015-11-26
申请号：US14643854
申请日：2015-03-10
Applicant: QUALCOMM Incorporated
CPC classification number: H03G3/3036 , H03F1/223 , H03F3/19 , H03F3/193 , H03F3/68 , H03F2200/111 , H03F2200/294 , H03F2200/451 , H03F2200/489 , H03G1/0029 , H04B1/0053
Abstract: An apparatus includes a first amplification stage configured to amplify a first carrier signal and a second amplification stage configured to amplify a second carrier signal. The first amplification stage is direct-current (DC) coupled to the second amplification stage. First circuitry is coupled to the first amplification stage and configured to control a first gain of the first amplification stage. The first circuitry includes a first gain control transistor configured to selectively divert a first bleed current from a first output of the first amplification stage. Second circuitry is coupled to the second amplification stage and configured to control a second gain of the second amplification stage independently of the first gain. The second circuitry includes a second gain control transistor configured to selectively divert a second bleed current from a second output of the second amplification stage.
Abstract translation: 一种装置包括被配置为放大第一载波信号的第一放大级和被配置为放大第二载波信号的第二放大级。 第一放大级是耦合到第二放大级的直流（DC）。 第一电路耦合到第一放大级并被配置为控制第一放大级的第一增益。 第一电路包括第一增益控制晶体管，其被配置为选择性地转移来自第一放大级的第一输出的第一泄放电流。 第二电路耦合到第二放大级并且被配置为独立于第一增益来控制第二放大级的第二增益。 第二电路包括第二增益控制晶体管，其被配置为选择性地转移来自第二放大级的第二输出的第二放电电流。
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公开(公告)号：US09166731B2
公开(公告)日：2015-10-20
申请号：US13901335
申请日：2013-05-23
Applicant: QUALCOMM Incorporated
Inventor： Li-Chung Chang , Ehab A Abdel Ghany , Ahmed A Youssef
CPC classification number: H04K3/228 , H03H7/0115 , H03H7/0184 , H03H7/07 , H03H7/1775 , H03H2007/013 , H03H2210/01 , H04B1/1036
Abstract: Techniques for providing low-cost and effective jammer rejection for a radio receiver. In an aspect, a notch filter is provided between a transformer and a differential mixer in the receiver. The notch frequency of the notch filter may be selected to correspond to an expected jammer frequency to effectively attenuate the jammer signal prior to down-conversion mixing by the mixer. The notch filter may be implemented using various techniques, e.g., an L-C combination having adjustable capacitance, and/or elliptic or Chebyshev filters.
Abstract translation: 为无线电接收机提供低成本和有效干扰抑制的技术。 在一方面，陷波滤波器设置在接收机中的变压器和差分混频器之间。 可以选择陷波滤波器的陷波频率以对应于预期的干扰频率，以在混频器进行下变频混频之前有效地衰减干扰信号。 陷波滤波器可以使用各种技术来实现，例如具有可调电容的L-C组合和/或椭圆形或切比雪夫滤波器。
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Patent Agency Ranking
16.发明授权公开(公告)号：US09130529B2
公开(公告)日：2015-09-08
申请号：US14157553
申请日：2014-01-17
Applicant: QUALCOMM Incorporated
Inventor： Ehab Ahmed Sobhy Abdel Ghany , Sang Hyun Woo , Wingching Vincent Leung , Zhang Jin , Li-Chung Chang
CPC classification number: H03G3/3036 , H03F1/26 , H03F3/19 , H03F3/193 , H03F3/68 , H03F2200/294 , H03F2200/372 , H03F2200/451
Abstract: A device includes a first and a second low noise amplifier (LNA), a first degenerative inductance coupled between the first LNA and ground by a first ground connection, and a second degenerative inductance coupled between the second LNA and ground by a second ground connection, the first and second degenerative inductances configured to establish negative inductive coupling between the first and second degenerative inductances.
Abstract translation: 器件包括第一和第二低噪声放大器（LNA），通过第一接地连接耦合在第一LNA和地之间的第一退化电感，以及通过第二接地连接耦合在第二LNA与地之间的第二退化电感， 第一和第二退化电感被配置为在第一和第二退化电感之间建立负电感耦合。
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公开(公告)号：US09035697B2
公开(公告)日：2015-05-19
申请号：US13840317
申请日：2013-03-15
Applicant: QUALCOMM Incorporated
Inventor： Ahmed A Youssef , Li-Chung Chang
IPC: H03F1/14 , H03F1/22 , H03F3/68 , H03F3/193 , H03F3/24 , H03F1/32 , H03F1/56 , H03F3/21 , H03F3/72
CPC classification number: H03F3/68 , H03F1/223 , H03F1/3205 , H03F1/56 , H03F3/193 , H03F3/211 , H03F3/245 , H03F3/72 , H03F2200/489 , H03F2200/492 , H03F2200/541 , H03G1/0023
Abstract: Split amplifiers with configurable gain and linearization circuitry are disclosed. In an exemplary design, an apparatus includes first and second amplifier circuits and a linearization circuit, which may be part of an amplifier. The first and second amplifier circuits are coupled in parallel and to an amplifier input. The linearization circuit is also coupled to the amplifier input. The first and second amplifier circuits are enabled in a high-gain mode. One of the first and second amplifier circuits is enabled in a low-gain mode. The linearization circuit is enabled in the second mode and disabled in the first mode. The amplifier is split into multiple sections. Each section includes an amplifier circuit and is a fraction of the amplifier. High linearly may be obtained using one amplifier circuit and the linearization circuit in the low-gain mode.
Abstract translation: 公开了具有可配置增益和线性化电路的分路放大器。 在示例性设计中，装置包括第一和第二放大器电路和线性化电路，其可以是放大器的一部分。 第一和第二放大器电路并联耦合到放大器输入端。 线性化电路也耦合到放大器输入端。 第一和第二放大器电路在高增益模式下使能。 第一和第二放大器电路之一在低增益模式下使能。 线性化电路在第二模式下被使能并且在第一模式中被禁用。 放大器分为多个部分。 每个部分包括放大器电路，并且是放大器的一小部分。 可以使用一个放大器电路和低增益模式下的线性化电路获得高线性。
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18.发明申请公开(公告)号：US20140240048A1
公开(公告)日：2014-08-28
申请号：US13775036
申请日：2013-02-22
Applicant: QUALCOMM INCORPORATED
Inventor： Ahmed A. Youssef , Li-Chung Chang
IPC: H03F3/16
CPC classification number: H03F3/16 , H03F1/223 , H03F3/193 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/294 , H03F2200/372 , H03F2200/451 , H03F2200/489 , H03F2200/541 , H03G1/0052
Abstract: Multi-output amplifiers with configurable source degeneration inductance and having good performance are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a gain transistor and a configurable degeneration inductor for an amplifier. The gain transistor receives an input signal and provides an amplified signal. The amplifier provides a single output signal in a first operating mode or a plurality of output signals in a second operating mode. The configurable degeneration inductor is coupled to the gain transistor and provides a first source degeneration inductance in the first operating mode or a second source degeneration inductance in the second operating mode. The second source degeneration inductance is less than the first source degeneration inductance and may be dependent on the number of output signals generated in the second operating mode.
Abstract translation: 公开了具有可配置的源变性电感并具有良好性能的多输出放大器。 在示例性设计中，装置（例如，无线装置或集成电路）包括用于放大器的增益晶体管和可配置的退化电感器。 增益晶体管接收输入信号并提供放大信号。 放大器在第一操作模式中提供单个输出信号或在第二操作模式中提供多个输出信号。 可配置退化电感器耦合到增益晶体管，并且在第二操作模式中提供第一操作模式中的第一源退化电感或第二源极退化电感。 第二源极退化电感小于第一源极退化电感，并且可以取决于在第二操作模式中产生的输出信号的数量。
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19.发明申请SINGLE-INPUT MULTIPLE-OUTPUT AMPLIFIERS WITH INDEPENDENT GAIN CONTROL PER OUTPUT 有权具有独立增益控制的单输入多输出放大器公开(公告)号：US20140213209A1
公开(公告)日：2014-07-31
申请号：US13750905
申请日：2013-01-25
Applicant: QUALCOMM INCORPORATED
Inventor： Christian Holenstein , Aleksandar Miodrag Tasic , Li-Chung Chang , Allen He
IPC: H04B1/16
CPC classification number: H04B1/16 , H03F1/0277 , H03F1/223 , H03F3/193 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/294 , H03F2200/489 , H03F2200/492 , H03F2200/541 , H03G3/30 , H03G3/3052 , H03G5/24 , H04W88/06
Abstract: Amplifiers with multiple outputs and separate gain control per output are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) may include first and second amplifier circuits. The first amplifier circuit may receive and amplify an input radio frequency (RF) signal based on a first variable gain and provide a first amplified RF signal. The second amplifier circuit may receive and amplify the input RF signal based on a second variable gain and provide a second amplified RF signal. The input RF signal may include a plurality of transmitted signals being received by the wireless device. The first variable gain may be adjustable independently of the second variable gain. Each variable gain may be set based on the received power level of at least one transmitted signal being received by the wireless device.
Abstract translation: 公开了具有多个输出和每个输出的单独的增益控制的放大器。 在示例性设计中，设备（例如，无线设备或集成电路）可以包括第一和第二放大器电路。 第一放大器电路可以基于第一可变增益接收和放大输入射频（RF）信号，并提供第一放大RF信号。 第二放大器电路可以基于第二可变增益接收和放大输入RF信号，并提供第二放大RF信号。 输入RF信号可以包括由无线设备接收的多个发送信号。 第一可变增益可以独立于第二可变增益来调节。 可以基于由无线设备接收的至少一个发送信号的接收功率电平来设置每个可变增益。
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公开(公告)号：US20140113578A1
公开(公告)日：2014-04-24
申请号：US13656904
申请日：2012-10-22
Applicant: QUALCOMM INCORPORATED
Inventor： Rui Xu , Li-Chung Chang
IPC: H04B1/16
CPC classification number: H03F1/26 , H03F1/223 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/294 , H03F2200/421 , H03F2200/451 , H03F2200/492 , H03F2200/537 , H03F2200/541 , H03F2203/21145
Abstract: Amplifiers with noise splitting to improve noise figure are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes a plurality of amplifier circuits and at least one interconnection circuit. The amplifier circuits receive an input radio frequency (RF) signal. The interconnection circuit(s) are coupled between the plurality of amplifier circuits. Each interconnection circuit is closed to short the outputs or internal nodes of two amplifier circuits coupled to that interconnection circuit. The plurality of amplifier circuits may include a plurality of gain circuits coupled to a plurality of current buffers, one gain circuit and one current buffer for each amplifier circuit. Each amplifier circuit provides an output current, which may include a portion of the current from each of the plurality of gain circuits when the plurality of amplifier circuits are enabled.
Abstract translation: 公开了具有噪声分离以改善噪声系数的放大器。 在示例性设计中，装置（例如，无线装置，集成电路等）包括多个放大器电路和至少一个互连电路。 放大器电路接收输入射频（RF）信号。 互连电路耦合在多个放大器电路之间。 关闭每个互连电路以使耦合到该互连电路的两个放大器电路的输出或内部节点短路。 多个放大器电路可以包括耦合到多个电流缓冲器的多个增益电路，每个放大器电路的一个增益电路和一个电流缓冲器。 每个放大器电路提供输出电流，当多个放大器电路被使能时，其可以包括来自多个增益电路中的每一个的电流的一部分。
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