公开(公告)号：US08374560B2

公开(公告)日：2013-02-12

申请号：US12882684

申请日：2010-09-15

申请人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

发明人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

IPC分类号： H04B1/04

CPC分类号： H04B1/06 ,  H04B1/0057 ,  H04B1/0082 ,  H04B7/084

摘要： Aspects of a method and system for processing signals in a high performance receive chain may include amplifying a plurality of radio frequency signals in one or more respective one or ones of a plurality of amplifier chains in a multistandard radio frequency front-end, which may comprise one or more shared processing stages. The plurality of radio frequency signals may be compliant with a plurality of radio frequency communication standards and may be received concurrently. The one or more shared processing stages may be shared between two or more of the plurality of amplifier chains. Each of the two or more of the plurality of amplifier chains may be operable to amplify signals compliant with different radio frequency communication standards.

摘要翻译： 用于处理高性能接收链中的信号的方法和系统的方面可以包括在多标准射频前端中的多个放大器链中的一个或多个相应的一个或多个放大器链中放大多个射频信号，其可以包括 一个或多个共享处理阶段。 多个射频信号可以符合多个射频通信标准，并且可以同时接收。 一个或多个共享处理级可以在多个放大器链中的两个或更多个之间共享。 多个放大器链中的两个或更多个放大器链中的每一个可以可操作以放大符合不同射频通信标准的信号。

公开(公告)号：US07840198B2

公开(公告)日：2010-11-23

申请号：US11733047

申请日：2007-04-09

申请人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

发明人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

IPC分类号： H04B1/04

CPC分类号： H04B1/06 ,  H04B1/0057 ,  H04B1/0082 ,  H04B7/084

摘要： Aspects of a method and system for processing signals in a high performance receive chain may include amplifying radio frequency signals in amplifier chains in a multistandard radio frequency front-end, comprising one or more shared processing stages, and combining, with substantially equal gain, a number of phase-shifted radio frequency signals of the radio frequency signals into substantially equal-gain-combined radio frequency signals. The substantially equal-gain-combined radio frequency signals may be demodulated to obtain inphase channels and quadrature channels. A number of inphase channels and quadrature channels may be processed in I-channel processing blocks and Q-channel processing blocks to generate an output analog baseband signal. The multistandard radio frequency front-end may be capable of processing Bluetooth® signals and Wireless Local Area Network (WLAN) signals. The amplifier chains may comprise a first amplifier and a second amplifier, where the first amplifier may be shared between Bluetooth® signal processing paths and WLAN signal processing paths.

摘要翻译： 用于处理高性能接收链中的信号的方法和系统的方面可以包括在多标准射频前端放大放大器链中的射频信号，包括一个或多个共享处理级，并且以基本相等的增益组合 射频信号的相移射频信号的数量变成基本相等增益组合的射频信号。 基本上等增益组合的射频信号可以被解调以获得同相信道和正交信道。 可以在I信道处理块和Q信道处理块中处理多个同相信道和正交信道，以产生输出模拟基带信号。 多标准射频前端可能能够处理蓝牙信号和无线局域网（WLAN）信号。 放大器链可以包括第一放大器和第二放大器，其中第一放大器可以在蓝牙信号处理路径和WLAN信号处理路径之间共享。

公开(公告)号：US20110002257A1

公开(公告)日：2011-01-06

申请号：US12882684

申请日：2010-09-15

申请人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

发明人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

IPC分类号： H04J3/08 ,  H04B7/14

CPC分类号： H04B1/06 ,  H04B1/0057 ,  H04B1/0082 ,  H04B7/084

摘要： Aspects of a method and system for processing signals in a high performance receive chain may include amplifying a plurality of radio frequency signals in one or more respective one or ones of a plurality of amplifier chains in a multistandard radio frequency front-end, which may comprise one or more shared processing stages. The plurality of radio frequency signals may be compliant with a plurality of radio frequency communication standards and may be received concurrently. The one or more shared processing stages may be shared between two or more of the plurality of amplifier chains. Each of the two or more of the plurality of amplifier chains may be operable to amplify signals compliant with different radio frequency communication standards.

摘要翻译： 用于处理高性能接收链中的信号的方法和系统的方面可以包括在多标准射频前端中的多个放大器链中的一个或多个相应的一个或多个放大器链中放大多个射频信号，其可以包括 一个或多个共享处理阶段。 多个射频信号可以符合多个射频通信标准，并且可以同时接收。 一个或多个共享处理级可以在多个放大器链中的两个或更多个之间共享。 多个放大器链中的两个或更多个放大器链中的每一个可以可操作以放大符合不同射频通信标准的信号。

公开(公告)号：US20080139119A1

公开(公告)日：2008-06-12

申请号：US11733047

申请日：2007-04-09

申请人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

发明人： Arya Behzad ,  Adedayo Ojo ,  Yuyu Chang ,  Hung-Ming Chien ,  Kishore Rama Rao ,  Guruprasad Seetharam

IPC分类号： H04B7/00 ,  H04B1/26

CPC分类号： H04B1/06 ,  H04B1/0057 ,  H04B1/0082 ,  H04B7/084

摘要： Aspects of a method and system for processing signals in a high performance receive chain may include amplifying radio frequency signals in amplifier chains in a multistandard radio frequency front-end, comprising one or more shared processing stages, and combining, with substantially equal gain, a number of phase-shifted radio frequency signals of the radio frequency signals into substantially equal-gain-combined radio frequency signals. The substantially equal-gain-combined radio frequency signals may be demodulated to obtain inphase channels and quadrature channels. A number of inphase channels and quadrature channels may be processed in I-channel processing blocks and Q-channel processing blocks to generate an output analog baseband signal. The multistandard radio frequency front-end may be capable of processing Bluetooth® signals and Wireless Local Area Network (WLAN) signals. The amplifier chains may comprise a first amplifier and a second amplifier, where the first amplifier may be shared between Bluetooth® signal processing paths and WLAN signal processing paths.

摘要翻译： 用于处理高性能接收链中的信号的方法和系统的方面可以包括在多标准射频前端放大放大器链中的射频信号，包括一个或多个共享处理级，并且以基本相等的增益组合 射频信号的相移射频信号的数量变成基本相等增益组合的射频信号。 基本上等增益组合的射频信号可以被解调以获得同相信道和正交信道。 可以在I信道处理块和Q信道处理块中处理多个同相信道和正交信道，以产生输出模拟基带信号。 多标准射频前端可能能够处理蓝牙信号和无线局域网（WLAN）信号。 放大器链可以包括第一放大器和第二放大器，其中第一放大器可以在蓝牙信号处理路径和WLAN信号处理路径之间共享。

公开(公告)号：US20080139158A1

公开(公告)日：2008-06-12

申请号：US11618835

申请日：2006-12-31

申请人： Yuyu Chang ,  Arya Behzad

发明人： Yuyu Chang ,  Arya Behzad

IPC分类号： H04B1/16

CPC分类号： H04B1/18 ,  H03F3/19 ,  H03F3/45188 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2203/45318 ,  H03F2203/45386 ,  H03F2203/45544 ,  H03F2203/45638

摘要： Aspects of a method and system for a transformer-based high performance cross-coupled low noise amplifier may include one or more circuits that integrate within a single chip, a balun with a low-noise amplifier. A DC current biasing path for the low-noise amplifier may be provided through the integrated balun. The low-noise amplifier may be configured as a cross-coupled low-noise amplifier, where the balun may be directly coupled to the cross-coupled low-noise amplifier. The balun may comprise two or more inductors, wherein one or more of the inductors may provide an electrical path for allowing a DC bias current to flow to ground. Integrating a balun on a single chip with a low-noise amplifier may allow the use of a single received signal input terminal. The biasing voltage may be selected to optimize performance of the low-noise amplifier.

摘要翻译： 用于基于变压器的高性能交叉耦合低噪声放大器的方法和系统的方面可以包括集成在单个芯片内的一个或多个电路，具有低噪声放大器的平衡 - 不平衡变压器。 可以通过集成的平衡 - 不平衡变压器提供用于低噪声放大器的直流电流偏置路径。 低噪声放大器可以被配置为交叉耦合低噪声放大器，其中平衡 - 不平衡变换器可以直接耦合到交叉耦合的低噪声放大器。 平衡 - 不平衡转换器可以包括两个或更多个电感器，其中一个或多个电感器可以提供用于允许DC偏置电流流向地的电路径。 将单芯片上的平衡 - 不平衡变换器与低噪声放大器集成可能允许使用单个接收信号输入端子。 可以选择偏置电压以优化低噪声放大器的性能。

公开(公告)号：US08073417B2

公开(公告)日：2011-12-06

申请号：US11618835

申请日：2006-12-31

申请人： Yuyu Chang ,  Arya Behzad

发明人： Yuyu Chang ,  Arya Behzad

IPC分类号： H04B1/18 ,  H04B1/28 ,  H04B7/00

CPC分类号： H04B1/18 ,  H03F3/19 ,  H03F3/45188 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2203/45318 ,  H03F2203/45386 ,  H03F2203/45544 ,  H03F2203/45638

摘要： Aspects of a method and system for a transformer-based high performance cross-coupled low noise amplifier may include one or more circuits that integrate within a single chip, a balun with a low-noise amplifier. A DC current biasing path for the low-noise amplifier may be provided through the integrated balun. The low-noise amplifier may be configured as a cross-coupled low-noise amplifier, where the balun may be directly coupled to the cross-coupled low-noise amplifier. The balun may comprise two or more inductors, wherein one or more of the inductors may provide an electrical path for allowing a DC bias current to flow to ground. Integrating a balun on a single chip with a low-noise amplifier may allow the use of a single received signal input terminal. The biasing voltage may be selected to optimize performance of the low-noise amplifier.

摘要翻译： 用于基于变压器的高性能交叉耦合低噪声放大器的方法和系统的方面可以包括集成在单个芯片内的一个或多个电路，具有低噪声放大器的平衡 - 不平衡变压器。 可以通过集成的平衡 - 不平衡变压器提供用于低噪声放大器的直流电流偏置路径。 低噪声放大器可以被配置为交叉耦合低噪声放大器，其中平衡 - 不平衡变换器可以直接耦合到交叉耦合的低噪声放大器。 平衡 - 不平衡转换器可以包括两个或更多个电感器，其中一个或多个电感器可以提供用于允许DC偏置电流流向地的电路径。 将单芯片上的平衡 - 不平衡变换器与低噪声放大器集成可能允许使用单个接收信号输入端子。 可以选择偏置电压以优化低噪声放大器的性能。

公开(公告)号：US08903340B2

公开(公告)日：2014-12-02

申请号：US13169699

申请日：2011-06-27

申请人： Yuyu Chang ,  Hooman Darabi

发明人： Yuyu Chang ,  Hooman Darabi

IPC分类号： H03G3/34 ,  H03G3/30 ,  H04B1/10 ,  H03G11/02

CPC分类号： H04B1/109 ,  H03G3/3052 ,  H03G3/345 ,  H03G11/02

摘要： Embodiments of a radio frequency (RF) receiver implementing one or more forms of protection to protect devices of the RF receiver from in-band interferers is provided. The RF receiver includes an integrated circuit terminal configured to couple a RF signal received at an antenna to a RF signal path, and a low noise amplifier (LNA) coupled to the RF signal path and configured to amplify the RF signal to provide an amplified RF signal. To protect the LNA from in-band interferers, the RF receiver can further include one or more clamping circuits and/or an over-voltage detector to determine if a peak of the RF signal exceeds an acceptable level.

摘要翻译： 提供了实现一种或多种形式的保护的射频（RF）接收机的实施例，以保护RF接收机的设备免受带内干扰。 RF接收机包括被配置为将在天线处接收的RF信号耦合到RF信号路径的集成电路终端和耦合到RF信号路径的低噪声放大器（LNA），并被配置为放大RF信号以提供放大RF 信号。 为了保护LNA免受带内干扰，RF接收机还可包括一个或多个钳位电路和/或过电压检测器，以确定RF信号的峰值是否超过可接受的电平。

公开(公告)号：US08410823B2

公开(公告)日：2013-04-02

申请号：US11619803

申请日：2007-01-04

申请人： Yuyu Chang ,  Meng-An Pan

发明人： Yuyu Chang ,  Meng-An Pan

IPC分类号： H02M11/00 ,  H03F3/45

CPC分类号： H03F3/195 ,  H03F1/08 ,  H03F3/191 ,  H03F3/45475 ,  H03F2200/168 ,  H03F2200/451 ,  H03F2200/91 ,  H03F2203/45136

摘要： Aspects of a method and system for an integrated LC resonant current gain boosting amplifier may include amplifying within a chip, via an on-chip LC current gain circuit, an alternating current (AC) generated by an on-chip voltage-to-current converter, and converting within the chip, via an on-chip current-to-voltage circuit; the amplified alternating current to an output voltage. The on-chip LC current gain circuit comprises only passive components, which may include one or more resistors, one or more capacitors, and one or more inductors.

摘要翻译： 用于集成LC谐振电流增益升压放大器的方法和系统的方面可以包括通过片上LC电流增益电路在芯片内放大由片上电压 - 电流转换器产生的交流（AC） ，并通过片上电流 - 电压电路在芯片内转换; 放大的交流电流达到输出电压。 片上LC电流增益电路仅包括无源部件，其可以包括一个或多个电阻器，一个或多个电容器和一个或多个电感器。

公开(公告)号：US20120329418A1

公开(公告)日：2012-12-27

申请号：US13169681

申请日：2011-06-27

申请人： Yuyu Chang ,  Hooman Darabi

发明人： Yuyu Chang ,  Hooman Darabi

IPC分类号： H04B1/10

CPC分类号： H03F1/52 ,  H03F3/195 ,  H03F3/45475 ,  H03F2200/294 ,  H03F2200/444 ,  H03F2200/453 ,  H03F2200/78

摘要： Embodiments of a radio frequency (RF) receiver implementing one or more forms of protection to protect devices of the RF receiver from in-band interferers is provided. The RF receiver includes an integrated circuit terminal configured to couple a RF signal received at an antenna to a RF signal path, and a low noise amplifier (LNA) coupled to the RF signal path and configured to amplify the RF signal to provide an amplified RF signal. To protect the LNA from in-band interferers, the RF receiver can further include one or more clamping circuits and/or an over-voltage detector to determine if a peak of the RF signal exceeds an acceptable level.

摘要翻译： 提供了实现一种或多种形式的保护的射频（RF）接收机的实施例，以保护RF接收机的设备免受带内干扰。 RF接收机包括被配置为将在天线处接收的RF信号耦合到RF信号路径的集成电路终端和耦合到RF信号路径的低噪声放大器（LNA），并被配置为放大RF信号以提供放大RF 信号。 为了保护LNA免受带内干扰，RF接收机还可包括一个或多个钳位电路和/或过电压检测器，以确定RF信号的峰值是否超过可接受的电平。

公开(公告)号：US07671685B2

公开(公告)日：2010-03-02

申请号：US11694266

申请日：2007-03-30

申请人： Yuyu Chang

发明人： Yuyu Chang

IPC分类号： H03F3/04

CPC分类号： H03F3/193 ,  H03F1/223 ,  H03F1/26 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45166 ,  H03F2203/45668 ,  H03F2203/45704

摘要： Aspects of a method and system for a low power fully differential noise canceling low noise amplifier (NC LNA) are provided. The NC LNA may receive signals via a single ended input and may generate an amplified symmetric differential output from the received signals. The NC LNA may utilize capacitor dividers, such as a capacitor bank, in the single ended input in order to provide impedance transformation that enables low power operation and matching to an input port. The NC LNA may generate one portion of the amplified symmetric differential output via a voltage divider, which may comprise a plurality of capacitors, such as a capacitor bank. The NC LNA may be implemented utilizing one or more circuits.

摘要翻译： 提供了低功耗全差分噪声消除低噪声放大器（NC LNA）的方法和系统的方面。 NC LNA可以经由单端输入接收信号，并且可以从接收到的信号产生放大的对称差分输出。 NC LNA可以在单端输入中使用诸如电容器组的电容器分配器，以便提供能够进行低功率操作和与输入端口匹配的阻抗变换。 NC LNA可以经由分压器产生放大的对称差分输出的一部分，分压器可以包括多个电容器，例如电容器组。 NC LNA可以利用一个或多个电路来实现。