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    Front End Module With Tone Injection
    11.
    发明申请
    Front End Module With Tone Injection 有权
    前端模块与音频注入

    公开(公告)号：US20130343237A1

    公开(公告)日：2013-12-26

    申请号：US14012098

    申请日：2013-08-28

    Applicant: Broadcom Corporation

    Inventor： Mohyee Mikhemar ,  Hooman Darabi

    IPC: H04L5/14

    CPC classification number: H04L5/1461 ,  H03F1/56 ,  H03F3/195 ,  H03F2200/294 ,  H03F2200/537 ,  H03H7/40 ,  H04B1/0458 ,  H04B1/10 ,  H04B1/18 ,  H04B1/525 ,  H04B1/581

    Abstract: A radio front end includes a power amplifier, a tone injection module, a duplexer, a balancing network, and a processor. The tone injection module is operable, in a first mode, to produce a tone having a carrier frequency that is substantially similar to a carrier frequency of an inbound wireless signal. The duplexer is operable, in the first mode, to provide electrical isolation between the outbound wireless signal and a combination signal of the tone and inbound wireless signal and is operable, in a second mode, to provide electrical isolation between the outbound wireless signal and the inbound wireless signal. The processor is operable to determine an amplitude of a tone component of the combination signal; correlate the amplitude of the tone component to an inbound frequency band isolation; and adjust baseband processing of a down converted representation of the combination signal based on the inbound frequency band isolation.

    Abstract translation: 无线电前端包括功率放大器，音调注入模块，双工器，平衡网络和处理器。 音调注入模块在第一模式中可操作地产生具有与入站无线信号的载波频率基本相似的载波频率的音调。 双工器在第一模式中可操作地在出站无线信号和音调和入站无线信号的组合信号之间提供电隔离，并且在第二模式中可操作地提供出站无线信号和 入站无线信号。 处理器可操作以确定组合信号的音调分量的幅度; 将音调分量的幅度与入站频带隔离相关; 并且基于入站频带隔离来调整组合信号的下变频表示的基带处理。

    Receiver architecture for a compact and low power receiver
    12.
    发明授权
    Receiver architecture for a compact and low power receiver 有权
    接收器架构，用于紧凑型和低功率接收器

    公开(公告)号：US09246438B2

    公开(公告)日：2016-01-26

    申请号：US14817150

    申请日：2015-08-03

    Applicant: BROADCOM CORPORATION

    Inventor： Mohyee Mikhemar ,  Hooman Darabi

    IPC: H04B1/18 ,  H03F1/02 ,  H03F1/56 ,  H03F3/19 ,  H03F3/21

    CPC classification number: H03F1/0205 ,  H03F1/565 ,  H03F3/19 ,  H03F3/211 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2203/21106 ,  H04B1/00 ,  H04B1/005 ,  H04B1/18

    Abstract: A circuit for a receiver with reconfigurable low-power or wideband operation may comprise one or more main signal paths each coupled to a first port and including a low-noise amplifier (LNA) configured to provide a radio frequency (RF) signal to a main mixer circuit. An auxiliary signal path may be coupled to a second port. The auxiliary signal path may include an auxiliary mixer configured to provide an on-chip matching input impedance that may match an impedance of the antenna. The first port may be coupled to an RF antenna through an off-chip matching circuit, when a low-power operation is desired. The first port may be coupled to the second port and to the RF antenna, when a wideband operation is desired.

    Abstract translation: 用于具有可重新配置的低功率或宽带操作的接收机的电路可以包括一个或多个主信号路径，每个主信号路径耦合到第一端口，并且包括低噪声放大器（LNA），低噪声放大器（LNA）被配置为提供射频（RF）信号到主 混频器电路。 辅助信号路径可以耦合到第二端口。 辅助信号路径可以包括配置成提供与天线的阻抗匹配的片上匹配输入阻抗的辅助混频器。 当需要低功率操作时，第一端口可以通过片外匹配电路耦合到RF天线。 当需要宽带操作时，第一端口可以耦合到第二端口和RF天线。

    Power distributing duplexer system
    13.
    发明授权
    Power distributing duplexer system 有权
    配电双工器系统

    公开(公告)号：US09214918B2

    公开(公告)日：2015-12-15

    申请号：US13716005

    申请日：2012-12-14

    Applicant: BROADCOM CORPORATION

    Inventor： Mohyee Mikhemar ,  Hooman Darabi

    IPC: H03H7/46 ,  H03H7/38 ,  H02J17/00 ,  H04B1/52 ,  H04B1/04 ,  H04B1/18 ,  H04B1/525

    CPC classification number: H03H7/38 ,  H02J17/00 ,  H03H7/463 ,  H04B1/0458 ,  H04B1/18 ,  H04B1/52 ,  H04B1/525

    Abstract: A power distributing duplexer system is provided. In some aspects, the system includes a duplexer configured to couple an antenna to a transmitter and a receiver. The system also includes a balancing network coupled to the duplexer. The balancing network includes a network impedance. The balancing network is configured to adjust the network impedance to match an antenna impedance of the antenna. The balancing network includes a plurality of balancing network modules coupled to the duplexer. Each of the plurality of balancing network modules is configured to receive a portion of an output voltage from the duplexer.

    Abstract translation: 提供配电双工器系统。 在一些方面，该系统包括配置成将天线耦合到发射机和接收机的双工器。 系统还包括耦合到双工器的平衡网络。 平衡网络包括网络阻抗。 平衡网络被配置为调整网络阻抗以匹配天线的天线阻抗。 平衡网络包括耦合到双工器的多个平衡网络模块。 多个平衡网络模块中的每一个被配置为从双工器接收输出电压的一部分。

    Receiver architecture with reconfigurable on-chip matching for wideband operation and off-chip matching for low-power operation
    15.
    发明授权
    Receiver architecture with reconfigurable on-chip matching for wideband operation and off-chip matching for low-power operation 有权
    具有可重构片上匹配的接收器架构，用于宽带操作和低功耗操作的片外匹配

    公开(公告)号：US09130600B2

    公开(公告)日：2015-09-08

    申请号：US13719125

    申请日：2012-12-18

    Applicant: BROADCOM CORPORATION

    Inventor： Mohyee Mikhemar ,  Hooman Darabi

    IPC: H04B1/06 ,  H04B1/00

    CPC classification number: H03F1/0205 ,  H03F1/565 ,  H03F3/19 ,  H03F3/211 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2203/21106 ,  H04B1/00 ,  H04B1/005 ,  H04B1/18

    Abstract: A circuit for a receiver with reconfigurable low-power or wideband operation may comprise one or more main signal paths each coupled to a first port and including a low-noise amplifier (LNA) configured to provide a radio frequency (RF) signal to a main mixer circuit. An auxiliary signal path may be coupled to a second port. The auxiliary signal path may include an auxiliary mixer configured to provide an on-chip matching input impedance that may match an impedance of the antenna. The first port may be coupled to an RF antenna through an off-chip matching circuit, when a low-power operation is desired. The first port may be coupled to the second port and to the RF antenna, when a wideband operation is desired.

    Abstract translation: 用于具有可重新配置的低功率或宽带操作的接收机的电路可以包括一个或多个主信号路径，每个主信号路径耦合到第一端口，并且包括低噪声放大器（LNA），低噪声放大器（LNA）被配置为向主 混频器电路。 辅助信号路径可以耦合到第二端口。 辅助信号路径可以包括配置成提供与天线的阻抗匹配的片上匹配输入阻抗的辅助混频器。 当需要低功率操作时，第一端口可以通过片外匹配电路耦合到RF天线。 当需要宽带操作时，第一端口可以耦合到第二端口和RF天线。

    Phase-noise reduction technique using frequency-to-current conversion with baseband integration
    17.
    发明授权
    Phase-noise reduction technique using frequency-to-current conversion with baseband integration 有权
    使用基带集成的频率到电流转换的相位降噪技术

    公开(公告)号：US08977222B2

    公开(公告)日：2015-03-10

    申请号：US13681316

    申请日：2012-11-19

    Applicant: Broadcom Corporation

    Inventor： Mohyee Mikhemar ,  David Murphy ,  Hooman Darabi

    IPC: H04B17/00 ,  H04B1/10

    CPC classification number: H04B17/0055 ,  H04B17/11 ,  H04B17/345

    Abstract: A circuit for measurement of a phase noise of an oscillator may include the oscillator to generate a first signal having the same oscillation frequency as an instantaneous oscillation frequency of the oscillator. The circuit may include a first circuit that is configured to generate a second signal from the first signal. An instantaneous amplitude of the second signal may be related to the oscillation frequency of the first signal. A second circuit may be configured to integrate the second signal to generate a third signal. The third signal can be a measure of the phase noise of the oscillator. The third signal can be used to cancel some or all of the phase noise of the oscillator.

    Abstract translation: 用于测量振荡器的相位噪声的电路可以包括振荡器以产生具有与振荡器的瞬时振荡频率相同的振荡频率的第一信号。 电路可以包括被配置为从第一信号产生第二信号的第一电路。 第二信号的瞬时振幅可以与第一信号的振荡频率有关。 第二电路可以被配置为对第二信号进行积分以产生第三信号。 第三个信号可以是振荡器的相位噪声的量度。 第三个信号可用于消除振荡器的一些或全部相位噪声。

    LOW-LOSS LARGE-SIGNAL ELECTRICAL BALANCE DUPLEXER
    18.
    发明申请
    LOW-LOSS LARGE-SIGNAL ELECTRICAL BALANCE DUPLEXER 有权
    低损耗大信号电平衡双工器

    公开(公告)号：US20140146717A1

    公开(公告)日：2014-05-29

    申请号：US13688007

    申请日：2012-11-28

    Applicant: BROADCOM CORPORATION

    Inventor： Mohyee Mikhemar ,  Hooman Darabi

    IPC: H04L5/14

    CPC classification number: H04L5/1461 ,  H04B1/525

    Abstract: A circuit for a large-signal electrical balance duplexer (EBD) may include a circulator that can be configured to couple an output node of a transmit (TX) path to an antenna. An EBD circuit may be coupled to the circulator, at a first port of the EBD circuit. The EBD circuit may be configured to isolate the circulator from one or more input nodes of a receive (RX) path. An attenuator may be coupled between the output node of the TX path and a second port of the EBD circuit. The attenuator may be configured to provide an attenuated signal to the EBD circuit.

    Abstract translation: 用于大信号电平衡双工器（EBD）的电路可以包括可被配置为将发射（TX）路径的输出节点耦合到天线的环行器。 EBD电路可以在EBD电路的第一端口耦合到环行器。 EBD电路可以被配置为将循环器与接收（RX）路径的一个或多个输入节点隔离。 衰减器可以耦合在TX路径的输出节点和EBD电路的第二端口之间。 衰减器可以被配置为向EBD电路提供衰减信号。

    Electrical balance duplexer for co-existence and concurrent operation of more than one wireless transceivers
    19.
    发明授权
    Electrical balance duplexer for co-existence and concurrent operation of more than one wireless transceivers 有权
    电气平衡双工器，用于多个无线收发器的共存和并发操作

    公开(公告)号：US09154289B2

    公开(公告)日：2015-10-06

    申请号：US13688053

    申请日：2012-11-28

    Applicant: BROADCOM CORPORATION

    Inventor： Mohyee Mikhemar ,  Hooman Darabi

    IPC: H04B1/44 ,  H04L5/14 ,  H04B1/52 ,  H03H7/46

    CPC classification number: H04L5/14 ,  H03H7/463 ,  H04B1/52

    Abstract: A circuit for a common electrical balance duplexer (EBD) of a multi-path transceiver may include an EBD circuit. The EBD circuit may be coupled to output nodes of two or more transmit (TX) paths, one or more antennas, and input nodes of two or more receive (RX) paths. The EBD circuit may be configured to isolate the TX paths from the RX paths, and to provide low-loss signal paths between the output nodes of the transmit (TX) paths and one or more antennas. One or more balancing networks may be coupled to the EBD circuit to provide one or more impedances, each matching a corresponding impedance associated with one of the antennas. The output nodes of the transmit (TX) paths may include output nodes of a first and a second power amplifier (PA). The first and the second PA may share a matching transformer that is merged with the EBD circuit.

    Abstract translation: 用于多径收发器的公共电气平衡双工器（EBD）的电路可以包括EBD电路。 EBD电路可以耦合到两个或更多个发射（TX）路径，一个或多个天线以及两个或更多个接收（RX）路径的输入节点的输出节点。 EBD电路可以被配置为将TX路径与RX路径隔离，并且在发射（TX）路径的输出节点与一个或多个天线之间提供低损耗信号路径。 一个或多个平衡网络可以耦合到EBD电路以提供一个或多个阻抗，每个阻抗匹配与天线之一相关联的相应阻抗。 发射（TX）路径的输出节点可以包括第一和第二功率放大器（PA）的输出节点。 第一和第二PA可以共享与EBD电路合并的匹配变压器。

    Receiver with variable gain control transimpedance amplifier
    20.
    发明授权
    Receiver with variable gain control transimpedance amplifier 有权
    具有可变增益控制跨阻放大器的接收器

    公开(公告)号：US09112745B2

    公开(公告)日：2015-08-18

    申请号：US13901390

    申请日：2013-05-23

    Applicant: Broadcom Corporation

    Inventor： Mohyee Mikhemar ,  Amir Hadji-Abdolhamid ,  Hooman Darabi

    IPC: H04B1/16 ,  H03F3/45 ,  H04L25/06 ,  H03F1/08 ,  H03G1/00 ,  H03G3/30 ,  H03G3/32 ,  H03H11/12

    CPC classification number: H03H11/1217 ,  H03F1/0205 ,  H03F1/086 ,  H03F3/19 ,  H03F3/45076 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/91 ,  H03F2203/45332 ,  H03F2203/45336 ,  H03G1/0005 ,  H03G1/0029 ,  H03G3/3068 ,  H03G3/32 ,  H03H11/1252 ,  H03H11/1256 ,  H03H11/1291 ,  H03H2210/025 ,  H04B1/123 ,  H04B1/16 ,  H04L25/06

    Abstract: According to one embodiment, a compact low-power receiver comprises first and second analog circuits connected by a digitally controlled interface circuit. The first analog circuit has a first direct-current (DC) offset and a first common mode voltage at an output, and the second analog circuit has a second DC offset and a second common mode voltage at an input. The digitally controlled interface circuit connects the output to the input, and is configured to match the first and second DC offsets and to match the first and second common mode voltages. In one embodiment, the first analog circuit is a variable gain control transimpedance amplifier (TIA) implemented using a current mode buffer, the second analog circuit is a second-order adjustable low-pass filter, whereby a three-pole adjustable low-pass filter in the compact low-power receiver is effectively produced.

    Abstract translation: 根据一个实施例，紧凑型低功率接收机包括由数字控制接口电路连接的第一和第二模拟电路。 第一模拟电路在输出处具有第一直流（DC）偏移和第一共模电压，并且第二模拟电路在输入端具有第二直流偏移和第二共模电压。 数字控制接口电路将输出连接到输入，并且被配置为匹配第一和第二DC偏移并且匹配第一和第二共模电压。 在一个实施例中，第一模拟电路是使用电流模式缓冲器实现的可变增益控制跨阻抗放大器（TIA），第二模拟电路是二阶可调低通滤波器，由此三极可调低通滤波器 在紧凑型低功率接收机中有效生产。

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