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48 条记录 (耗时 0.026 秒)

    RF transceiver front-end with RX/TX isolation
    42.
    发明授权
    RF transceiver front-end with RX/TX isolation 有权
    RF收发器前端具有RX / TX隔离

    公开(公告)号：US08208866B2

    公开(公告)日：2012-06-26

    申请号：US12363486

    申请日：2009-01-30

    申请人： Mohyee Mikhemar ,  Hooman Darabi

    发明人： Mohyee Mikhemar ,  Hooman Darabi

    IPC分类号： H04B1/40 ,  H04B1/44 ,  H04B1/46 ,  H04M1/00

    CPC分类号： H04B1/18 ,  H04B1/40

    摘要： A radio frequency (RF) transceiver front-end includes an antenna, an RF receiver section, an RF transmitter section, a balancing circuit, and a multiple node isolation and coupling circuit. The multiple node isolation and coupling circuit is coupled to the antenna, the RF receiver section, the RF transmitter section, and the balancing circuit. The multiple node isolation and coupling circuit provides an inbound RF signal from the antenna to the RF receiver section and provides an outbound RF signal from the RF transmitter section to the antenna, wherein, by providing an isolating signal to the balancing circuit, the multiple node isolation and coupling circuit substantially isolates the outbound RF signal from the inbound RF signal.

    摘要翻译： 射频（RF）收发器前端包括天线，RF接收器部分，RF发射器部分，平衡电路和多节点隔离和耦合电路。 多节点隔离和耦合电路耦合到天线，RF接收器部分，RF发射器部分和平衡电路。 多节点隔离和耦合电路提供从天线到RF接收器部分的入站RF信号，并且将来自RF发射器部分的出站RF信号提供给天线，其中，通过向平衡电路提供隔离信号，多节点 隔离和耦合电路基本上将出站RF信号与入站RF信号隔离开。

    FRONT END MODULE WITH TONE INJECTION
    44.
    发明申请
    FRONT END MODULE WITH TONE INJECTION 失效
    前端模块与音频注入

    公开(公告)号：US20110300814A1

    公开(公告)日：2011-12-08

    申请号：US12946724

    申请日：2010-11-15

    申请人： Mohyee Mikhemar ,  Hooman Darabi

    发明人： Mohyee Mikhemar ,  Hooman Darabi

    IPC分类号： H04B1/06

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

    摘要： A radio front end includes a power amplifier, a tone injection module, a duplexer, a balancing network, and a processing module. 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 processing module 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.

    摘要翻译： 无线电前端包括功率放大器，音调注入模块，双工器，平衡网络和处理模块。 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。 处理模块可操作以确定组合信号的色调分量的幅度; 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。

    FRONT END MODULE WITH AN ANTENNA TUNING UNIT
    45.
    发明申请
    FRONT END MODULE WITH AN ANTENNA TUNING UNIT 有权
    具有天线调谐单元的前端模块

    公开(公告)号：US20110299438A1

    公开(公告)日：2011-12-08

    申请号：US12945954

    申请日：2010-11-15

    申请人： Mohyee Mikhemar ,  Hooman Darabi

    发明人： Mohyee Mikhemar ,  Hooman Darabi

    IPC分类号： H04B7/00 ,  H04J3/00

    CPC分类号： H04B1/18 ,  H04B1/0458

    摘要： A radio front end includes an antenna tuning unit, a duplexer, a balancing network, and a processing module. The antenna tuning unit is operably coupled to an antenna and operable to tune an operational characteristic of the antenna based on an antenna tuning signal. The duplexer is operably coupled to the antenna tuning unit and operable to provide electrical isolation between an outbound wireless signal and an inbound wireless signal. The balancing network is operably coupled to the duplexer and operable to establish an impedance that substantially matches an impedance of the antenna. The processing module is operable to estimate the impedance of the antenna to produce an estimated antenna impedance and to generate the antenna tuning signal based on the estimated antenna impedance.

    摘要翻译： 无线电前端包括天线调谐单元，双工器，平衡网络和处理模块。 天线调谐单元可操作地耦合到天线并且可操作以基于天线调谐信号来调谐天线的操作特性。 双工器可操作地耦合到天线调谐单元并且可操作以在出站无线信号和入站无线信号之间提供电隔离。 平衡网络可操作地耦合到双工器并且可操作以建立基本上匹配天线的阻抗的阻抗。 处理模块可操作以估计天线的阻抗以产生估计的天线阻抗，并且基于估计的天线阻抗来产生天线调谐信号。

    FRONT END MODULE WITH SCALABLE IMPEDANCE BALANCING
    46.
    发明申请
    FRONT END MODULE WITH SCALABLE IMPEDANCE BALANCING 审中-公开
    具有可扩展阻抗平衡的前端模块

    公开(公告)号：US20110299436A1

    公开(公告)日：2011-12-08

    申请号：US12946301

    申请日：2010-11-15

    申请人： Mohyee Mikhemar ,  Hooman Darabi

    发明人： Mohyee Mikhemar ,  Hooman Darabi

    IPC分类号： H04B7/005

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

    摘要： A radio front end includes a power amplifier, a duplexer, a detection module, a processing module, and a tunable balancing network. The duplexer is operable to provide electrical isolation between the outbound wireless signal and an inbound wireless signal. The detection module is operable to detect non-linear function of the power amplifier to produce a detected non-linearity and to detect transmit leakage of the duplexer to produce detected transmit leakage. The processing module is operable to generate a coarse tuning signal based on the detected non-linearity and to generate a fine tuning signal based on the detected transmit leakage. The tunable balancing network is operably coupled to the duplexer and operable to establish an impedance based on the coarse and fine tuning signals.

    摘要翻译： 无线电前端包括功率放大器，双工器，检测模块，处理模块和可调平衡网络。 双工器可操作以在出站无线信号和入站无线信号之间提供电隔离。 检测模块可操作以检测功率放大器的非线性功能以产生检测到的非线性并检测双工器的发射泄漏以产生检测到的传输泄漏。 处理模块可操作以基于检测到的非线性产生粗调谐信号，并且基于检测到的传输泄漏产生微调信号。 可调谐平衡网络可操作地耦合到双工器，并且可操作以基于粗调和微调信号建立阻抗。

    FRONT END MODULE WITH A TUNABLE BALANCING NETWORK
    47.
    发明申请
    FRONT END MODULE WITH A TUNABLE BALANCING NETWORK 有权
    具有平衡平衡网络的前端模块

    公开(公告)号：US20110299431A1

    公开(公告)日：2011-12-08

    申请号：US12946447

    申请日：2010-11-15

    申请人： Mohyee Mikhemar ,  Hooman Darabi

    发明人： Mohyee Mikhemar ,  Hooman Darabi

    IPC分类号： H04B7/00

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

    摘要： A radio front module includes a power amplifier, a duplexer, and a tunable balancing network. The power amplifier is operably coupled to amplify an up-converted signal into an outbound wireless signal. The duplexer is operably coupled to an antenna and operable to provide electrical isolation between the outbound wireless signal and an inbound wireless signal. The tunable balancing network is operable to establish an impedance that substantially matches an impedance of the antenna. The tunable balancing network includes a plurality of capacitive elements, a plurality of resistive elements, and a plurality of low-voltage switching elements operable to, and in accordance with a tuning signal, couple one or more of the plurality of capacitive elements and one or more of the plurality of resistive elements to the duplexer as an impedance balancing load.

    摘要翻译： 无线电前端模块包括功率放大器，双工器和可调平衡网络。 功率放大器可操作地耦合以将上变频信号放大到出站无线信号。 双工器可操作地耦合到天线并且可操作以在出站无线信号和入站无线信号之间提供电隔离。 可调平衡网络可操作以建立基本上匹配天线的阻抗的阻抗。 可调谐平衡网络包括多个电容元件，多个电阻元件和多个低电压开关元件，可操作以及根据调谐信号耦合所述多个电容元件中的一个或多个，以及一个或多个 作为阻抗平衡负载的多个电阻元件中的多个到双工器。

    RF Front-End with Wideband Transmitter/Receiver Isolation
    48.
    发明申请
    RF Front-End with Wideband Transmitter/Receiver Isolation 有权
    RF前端带宽带发射机/接收机隔离

    公开(公告)号：US20110064005A1

    公开(公告)日：2011-03-17

    申请号：US12567100

    申请日：2009-09-25

    申请人： Mohyee Mikhemar ,  Hooman Darabi

    发明人： Mohyee Mikhemar ,  Hooman Darabi

    IPC分类号： H04B7/005 ,  H04B1/44

    CPC分类号： H04L5/143 ,  H04B1/04 ,  H04B1/525 ,  H04B2001/0416

    摘要： Embodiments of a four-port isolation module are presented herein. In an embodiment, the isolation module includes a step-up autotransformer comprising a first and second winding that are electrically coupled in series at a center node. The first port of the isolation module is configured to couple an antenna to a first end node of the series coupled windings. The second port of the isolation module is configured to couple a balancing network to a second end node of the series coupled windings. The third port is configured to couple a transmit path to the center node. The fourth port is configured to couple a differential receive path across the first end node and the second end node. The isolation module effectively isolates the third port from the fourth port to prevent strong outbound signals received at the third port from saturating an LNA coupled to the fourth port.

    摘要翻译： 本文给出了四端口隔离模块的实施例。 在一个实施例中，隔离模块包括升压自耦变压器，其包括在中心节点电耦合的第一和第二绕组。 隔离模块的第一端口被配置为将天线耦合到串联耦合绕组的第一端节点。 隔离模块的第二端口被配置为将平衡网络耦合到串联耦合绕组的第二端节点。 第三端口被配置为将发送路径耦合到中心节点。 第四端口被配置为耦合跨越第一端节点和第二端节点的差分接收路径。 隔离模块有效地将第三端口与第四端口隔离，以防止在第三端口处接收的强大的出站信号使连接到第四端口的LNA饱和。