利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

40 条记录 (耗时 0.021 秒)

    Multichannel orthogonal frequency division multiplexed receivers with antenna selection and maximum-ratio combining and associated methods
    5.
    发明申请
    Multichannel orthogonal frequency division multiplexed receivers with antenna selection and maximum-ratio combining and associated methods 有权
    多通道正交频分复用接收机，具有天线选择和最大比组合及相关方法

    公开(公告)号：US20050141412A1

    公开(公告)日：2005-06-30

    申请号：US10749903

    申请日：2003-12-29

    申请人： Ali Sadri ,  Alexander Maltsev ,  Sergey Sergeyev ,  Alexei Davydov ,  Vadim Sergeyev

    发明人： Ali Sadri ,  Alexander Maltsev ,  Sergey Sergeyev ,  Alexei Davydov ,  Vadim Sergeyev

    IPC分类号： H04B7/08 ,  H04L27/26 ,  H04J11/00

    CPC分类号： H04W28/04 ,  H04B7/0857 ,  H04B7/0874 ,  H04L5/0023 ,  H04L27/2608 ,  H04L27/2647 ,  H04W24/00

    摘要： A reconfigurable multichannel receiver may selectively operate in increased throughput modes and/or increased range modes. In some embodiments, the receiver may select two or more antennas from a plurality of spatially diverse antennas to receive more than one subchannel of a wideband orthogonal frequency division multiplexed (OFDM) channel. Maximum-ratio combining may be performed on corresponding symbol-modulated subcarriers from the two or more antennas, and a single OFDM symbol may be generated from contributions from the subchannels received by the two or more antennas. In other embodiments, more than one subchannel of a wideband OFDM channel may be received through a single antenna selected from a plurality of spatially diverse antennas. In other embodiments, a single subchannel may be received by a plurality of spatially diverse antennas and maximum-ratio combining may be performed on corresponding symbol-modulated subcarriers received by the antennas.

    摘要翻译： 可重新配置的多通道接收器可以选择性地以增加的吞吐量模式和/或增加的范围模式操作。 在一些实施例中，接收机可以从多个空间多样的天线中选择两个或更多个天线，以接收宽带正交频分复用（OFDM）信道的多于一个子信道。 可以对来自两个或更多个天线的相应的符号调制副载波执行最大比组合，并且可以从由两个或更多个天线接收的子信道的贡献生成单个OFDM符号。 在其他实施例中，可以通过从多个空间多样的天线中选择的单个天线来接收多于一个的宽带OFDM信道的子信道。 在其他实施例中，单个子信道可以由多个空间上不同的天线接收，并且可以对由天线接收的对应的符号调制子载波执行最大比合并。

    BEAMFORMING SYSTEM AND METHOD FOR MODULAR PHASED ANTENNA ARRAY
    7.
    发明申请
    BEAMFORMING SYSTEM AND METHOD FOR MODULAR PHASED ANTENNA ARRAY 审中-公开
    模拟天线阵列的波束形成系统和方法

    公开(公告)号：US20140357319A1

    公开(公告)日：2014-12-04

    申请号：US14126516

    申请日：2012-12-21

    申请人： Alexander Maltsev ,  Ali Sadri ,  Richard Nichols ,  Vadim Sergeyev ,  Andrey Pudeyev ,  Alexei Davydov

    发明人： Alexander Maltsev ,  Ali Sadri ,  Richard Nichols ,  Vadim Sergeyev ,  Andrey Pudeyev ,  Alexei Davydov

    IPC分类号： H04B7/06 ,  H04B7/01

    CPC分类号： H04B7/0667 ,  G01S3/38 ,  H01Q3/26 ,  H04B7/01

    摘要： Generally, this disclosure provides systems and methods for modular antenna array beamforming with controllable antenna module delay for improved beam steering accuracy. A system may include a plurality of antenna modules, each of the antenna modules comprising an array of antenna elements coupled to an RF beamforming circuit, the RF beamforming circuit to adjust phase shifts associated with the antenna elements to generate an antenna beam associated with the antenna module; a delay circuit coupled to each of the antenna modules; and a central beamforming module coupled to each of the delay circuits, the central beamforming module to control the antenna beam associated with each of the antenna modules and further to adjust signal delays associated with the delay circuits, wherein the arrays of antenna elements of the antenna modules combine to operate as a composite antenna beamforming array.

    摘要翻译： 通常，本公开提供了用于模块化天线阵列波束成形的系统和方法，其具有可控天线模块延迟以改善波束转向精度。 系统可以包括多个天线模块，每个天线模块包括耦合到RF波束成形电路的天线元件的阵列，RF波束形成电路来调整与天线元件相关联的相移以产生与天线相关联的天线波束 模块 耦合到每个天线模块的延迟电路; 以及耦合到每个延迟电路的中央波束成形模块，所述中央波束成形模块用于控制与每个天线模块相关联的天线波束，并且还调整与延迟电路相关联的信号延迟，其中天线的天线元件阵列 模块组合起来用作复合天线波束成形阵列。