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    Receiver architecture for a compact and low power receiver
    2.
    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
    3.
    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
    5.
    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。

    Wideband receiver robust to radio frequency harmonics
    6.
    发明授权
    Wideband receiver robust to radio frequency harmonics 有权

    公开(公告)号：US09124335B1

    公开(公告)日：2015-09-01

    申请号：US14702609

    申请日：2015-05-01

    Applicant: Broadcom Corporation

    Inventor： David Murphy ,  Hooman Darabi

    IPC: H04B1/10 ,  H04B15/06

    CPC classification number: H04B1/1081 ,  H03D7/18 ,  H04B1/10 ,  H04B15/06

    Abstract: A radio frequency (RF) noise-cancelling receiver includes first transconductance cells configured to produce respective weighted current signals proportional to an input voltage signal. The RF receiver includes frequency conversion cells coupled to the first transconductance cells and configured to mix the weighted current signals with a plurality of non-overlapping local oscillator (LO) signals to produce downconverted current signals. The RF receiver includes transimpedance amplifiers coupled to the frequency conversion cells and configured to produce output voltage signals proportional to the downconverted current signals. The transimpedance amplifiers include second transconductance cells. Each of the first and second transconductance cells has an effective transconductance of a first magnitude for frequency components of the input voltage signal arising from a first harmonic and an effective transconductance of a second magnitude less than the first magnitude for frequency components of the input voltage signal arising from harmonics at integer multiples of the first harmonic.

    Baseband harmonic rejection circuit
    9.
    发明授权
    Baseband harmonic rejection circuit 有权
    基带谐波抑制电路

    公开(公告)号：US09037106B2

    公开(公告)日：2015-05-19

    申请号：US13734863

    申请日：2013-01-04

    Applicant: Broadcom Corporation

    Inventor： David Murphy ,  Hooman Darabi

    IPC: H04B1/10 ,  H03F1/02 ,  H03F3/195 ,  H03F3/21 ,  H03F3/45 ,  H03F3/72

    CPC classification number: H04B1/109 ,  H03F1/0277 ,  H03F3/195 ,  H03F3/211 ,  H03F3/45475 ,  H03F3/72 ,  H03F2200/294 ,  H03F2203/45512 ,  H03F2203/45526 ,  H03F2203/45528 ,  H03F2203/7215 ,  H03F2203/7236

    Abstract: A circuit for baseband harmonic rejection includes multiple transconductance cells coupled to one another at outputs of the transconductance cells and configured to receive down-converted signals that vary from one another to produce a weighted current signal proportional to a voltage corresponding to a respective down-converted signal. The circuit also includes a feedback impedance coupled between an input of one of the transconductance cells and the outputs of the transconductance cells. Each of the transconductance cells has an effective transconductance of a first magnitude for frequency components of the down-converted signal arising from a first harmonic and an effective transconductance of a second magnitude less than the first magnitude for frequency components of the down-converted signal arising from harmonics at integer multiples of the first harmonic.

    Abstract translation: 用于基带谐波抑制的电路包括在跨导单元的输出处彼此耦合的多个跨导单元，并被配置为接收彼此变化的下变频信号，以产生与对应于相应的下变频的电压成比例的加权电流信号 信号。 电路还包括耦合在跨导单元之一的输入和跨导单元的输出之间的反馈阻抗。 每个跨导单元对于由第一谐波产生的下变频信号的频率分量和对于下变频信号的频率分量的小于第一幅度的第二幅度的有效跨导，具有第一幅度的有效跨导 从谐波在整数倍的一次谐波。

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