Use of a filterbank in an adaptive on-channel repeater utilizing adaptive antenna arrays
    11.
    发明授权
    Use of a filterbank in an adaptive on-channel repeater utilizing adaptive antenna arrays 有权
    在使用自适应天线阵列的自适应在信道中继器中使用滤波器组

    公开(公告)号:US08116239B2

    公开(公告)日:2012-02-14

    申请号:US12041611

    申请日:2008-03-03

    IPC分类号: H04B7/14 H04B7/15 H04L12/58

    摘要: A repeater environment is provided operative to deploy a feedback cancellation loop that is adaptively coupled with an antenna array such that a selected metric can be derived by deploying a selected filter bank operative to process the signal on a bin by bin basis and the derived metric can be applied to the antenna array and feedback cancellation loop combination to improve signal integrity and amplification. In an illustrative implementation, an exemplary repeater environment comprises, a transmitter, a receiver, an equalized feedback cancellation loop circuitry comprising a filter bank, the cancellation loop being operatively coupled to an antenna array. In the illustrative implementation, the feedback cancellation loop can receive signals as input from a cooperating antenna array and provide output signals such as a feedback leakage signal to a cooperating antenna array.

    摘要翻译: 提供中继器环境,其操作是部署与天线阵列自适应地耦合的反馈消除环路,使得可以通过部署所选择的滤波器组来导出所选择的度量,所述选择的滤波器组可操作以通过分组来处理在信道上的信号,并且导出的度量可以 应用于天线阵列和反馈消除环组合以改善信号完整性和放大。 在说明性实现中,示例性中继器环境包括发射机,接收机,包括滤波器组的均衡反馈消除环路电路,该消除环路可操作地耦合到天线阵列。 在说明性实现中,反馈消除环路可以从协作天线阵列接收信号作为输入,并向协作天线阵列提供诸如反馈泄漏信号的输出信号。

    Physical layer repeater configuration for increasing MIMO performance
    12.
    发明授权
    Physical layer repeater configuration for increasing MIMO performance 有权
    用于增加MIMO性能的物理层中继器配置

    公开(公告)号:US08059727B2

    公开(公告)日:2011-11-15

    申请号:US11340838

    申请日:2006-01-27

    IPC分类号: H04L27/28

    摘要: A wireless network includes at least one Multiple Input Multiple Output (MIMO) wireless network station and two or more physical layer repeaters. Each of the physical layer repeaters is for receiving a wireless signal to or from the at least one MIMO wireless network station and re-transmitting the wireless signal while continuing to receive the wireless signal. The repeaters may be either frequency translating repeaters or non-frequency translating repeaters.

    摘要翻译: 无线网络包括至少一个多输入多输出(MIMO)无线网络站和两个或多个物理层中继器。 每个物理层中继器用于向或从至少一个MIMO无线网络站接收无线信号,并在继续接收无线信号的同时重新发送无线信号。 中继器可以是频率转换中继器或非频率转换中继器。

    Multiple-antenna device having an isolation element
    13.
    发明授权
    Multiple-antenna device having an isolation element 有权
    具有隔离元件的多天线装置

    公开(公告)号:US07592969B2

    公开(公告)日:2009-09-22

    申请号:US12000257

    申请日:2007-12-11

    IPC分类号: H01Q21/00 H04Q7/20

    摘要: A multiple-antenna device is provided, comprising: a printed circuit board having a ground plane configured to provide electromagnetic isolation between a first side of the printed circuit board and a second side of the printed circuit board; a first non-conductive support member formed over the first side of the printed circuit board; a second non-conductive support member formed over the second side of the printed circuit board; a first antenna formed over the first non-conductive support member; and a second antenna formed over the second non-conductive support member, wherein the first antenna is electrically connected to a first feed point on a first portion of the printed circuit board that is not connected to the ground plane, and wherein the second antenna is electrically connected to a second feed point on a second portion of the printed circuit board that is not connected to the ground plane.

    摘要翻译: 提供一种多天线装置,包括:印刷电路板,其具有被配置为在所述印刷电路板的第一侧和所述印刷电路板的第二侧之间提供电磁隔离的接地面; 形成在所述印刷电路板的所述第一侧上的第一非导电支撑构件; 形成在印刷电路板的第二侧上的第二非导电支撑构件; 形成在所述第一非导电支撑构件上的第一天线; 以及形成在所述第二非导电支撑构件上的第二天线,其中所述第一天线电连接到所述印刷电路板的未连接到所述接地平面的第一部分上的第一馈电点,并且其中所述第二天线是 电连接到印刷电路板的未连接到接地平面的第二部分上的第二馈电点。

    Electronic phase shifter with enhanced phase shift performance

    公开(公告)号:US06992546B2

    公开(公告)日:2006-01-31

    申请号:US11022483

    申请日:2004-12-22

    IPC分类号: H01P1/18

    CPC分类号: H01P1/185

    摘要: A varactor based phase shifter that increases phase shift range using a lower characteristic impedance between quadrature ports than is used at its input/output ports. The circuit makes use of a four port coupler arrangement that imbeds a quarter wave impedance transformation between the input port and the quadrature ports as well as between the quadrature ports and the output port. The characteristic impedance across the quadrature ports is therefore less than the characteristic impedance across the input and output ports. In one implementation, reducing a characteristic input/output impedance of 50 to a 20 ohm quadrature port impedance results in a phase shift range increase of more than 50%.

    Low cost multiple pattern antenna for use with multiple receiver systems
    16.
    发明授权
    Low cost multiple pattern antenna for use with multiple receiver systems 失效
    低成本多模式天线,用于多个接收机系统

    公开(公告)号:US06894653B2

    公开(公告)日:2005-05-17

    申请号:US10664413

    申请日:2003-09-17

    摘要: An antenna assembly includes at least two active or main radiating omni-directional antenna elements arranged with at least one beam control or passive antenna element used as a reflector. The beam control antenna element(s) may have multiple reactance elements that can electrically terminate it to adjust the input or output beam pattern(s) produced by the combination of the active antenna elements and the beam control antenna element(s). More specifically, the beam control antenna element(s) may be coupled to different terminating reactances to change beam characteristics, such as the directivity and angular beamwidth. Processing may be employed to select which terminating reactance to use. Consequently, the radiator pattern of the antenna can be more easily directed towards a specific target receiver/transmitter, reduce signal-to-noise interference levels, and/or increase gain by using Radio Frequency (RF), Intermediate Frequency (IF), or baseband processing. A Multiple-Input, Multiple-Output (MIMO) processing technique may be employed to operate the antenna assembly with simultaneous beam patterns.

    摘要翻译: 天线组件包括至少两个有源或主辐射全向天线元件,其布置有用作反射器的至少一个光束控制或无源天线元件。 波束控制天线元件可以具有多个电抗元件,其可以电气端接它,以调节由有源天线元件和波束控制天线元件的组合产生的输入或输出波束图案。 更具体地,波束控制天线元件可以耦合到不同的终止电抗以改变诸如方向性和角波束宽度的波束特性。 可以使用处理来选择要使用的终止电抗。 因此,通过使用射频(RF),中频(IF)或更高的频率,可以更容易地将天线的辐射器模式引向特定目标接收器/发射器,降低信噪比干扰电平和/或增加增益 基带处理。 可以采用多输入多输出(MIMO)处理技术来操作具有同时波束图案的天线组件。

    Wireless local area network repeater with automatic gain control for extending network coverage
    19.
    发明授权
    Wireless local area network repeater with automatic gain control for extending network coverage 有权
    具有自动增益控制的无线局域网中继器,用于扩展网络覆盖

    公开(公告)号:US08060009B2

    公开(公告)日:2011-11-15

    申请号:US10531078

    申请日:2003-10-15

    IPC分类号: H04B7/14

    摘要: A frequency translating repeater (200) for use in a time division duplex radio protocol communications system includes an automatic gain control feature. Specifically, a received signal (330) is split to provide signal detection paths (331, 332) wherein detection is performed by amplifiers (301, 302) filters (311, 312), converters (313, 314) and a processor (315). Delay is added using analog circuits such as SAW filters (307, 308, 309, 310) and gain adjustment provided by gain control elements (303, 304, 305, 306).

    摘要翻译: 用于时分双工无线电协议通信系统的频率转换中继器(200)包括自动增益控制特征。 具体地,接收信号(330)被分离以提供信号检测路径(331,332),其中由放大器(301,302)滤波器(311,312),转换器(313,314)和处理器(315)执行检测, 。 使用诸如SAW滤波器(307,308,309,310)的模拟电路和由增益控制元件(303,304,305,306)提供的增益调整来添加延迟。

    Non-frequency translating repeater with downlink detection for uplink and downlink synchronization
    20.
    发明授权
    Non-frequency translating repeater with downlink detection for uplink and downlink synchronization 有权
    具有下行链路检测用于上行链路和下行链路同步的非频率转换中继器

    公开(公告)号:US08023885B2

    公开(公告)日:2011-09-20

    申请号:US11546242

    申请日:2006-10-12

    IPC分类号: H04B3/36 H04B7/14 H04B7/15

    摘要: A non-frequency translating repeater (110, 210, 300) for use in a time division duplex (TDD) radio protocol communications system includes detection retransmission and automatic gain control. Detection is performed by detectors (309, 310) and a processor (313). Detection can be overridden by processor (313) using logic elements (314). Antennae (220, 230) having various form factors can be used to couple a base station (222) to a subscriber terminal (232) which can be located in a sub-optimal location such as deep inside a building or the like.

    摘要翻译: 用于时分双工(TDD)无线电协议通信系统的非频率转换中继器(110,210,300)包括检测重传和自动增益控制。 由检测器(309,310)和处理器(313)执行检测。 处理器(313)可以使用逻辑元件(314)覆盖检测。 可以使用具有各种形状因子的天线(220,230)来将基站(222)耦合到可以位于诸如建筑物内部等深处的次最佳位置的用户终端(232)。