System and method for fully self-contained calibration of an antenna
array
    1.
    发明授权
    System and method for fully self-contained calibration of an antenna array 失效
    用于天线阵列完全独立校准的系统和方法

    公开(公告)号:US6133868A

    公开(公告)日:2000-10-17

    申请号:US92429

    申请日:1998-06-05

    IPC分类号: H01Q3/26 G01S7/40

    CPC分类号: H01Q3/267

    摘要: Systems and methods are disclosed for providing calibration of the phase relationships of signals simulcast from a transmission system. In a preferred embodiment, a calibration signal is introduced into the transmission system and provided to various antenna elements. Samples of the calibration signal are taken at a point very near the antenna elements so as to sample phase shifts introduced by the transmission system. The signals of sets of the antenna elements are combined after sampling for transmission down the antenna mast to the active circuitry of the present invention. Accordingly, the present invention operates to selectively energize antenna elements of the sets so as to provide a single calibration signal down the combined signal path. Through reference to sampled signals one at a time, the present invention determines a necessary phase adjustment to result in the desired phase relationship of the signals at the antenna elements.

    摘要翻译: 公开了用于提供从传输系统联播的信号的相位关系的校准的系统和方法。 在优选实施例中,将校准信号引入到传输系统中并提供给各种天线元件。 校准信号的样本在非常靠近天线元件的点处获取,以便对由传输系统引入的相移进行采样。 天线元件组合的信号在采样之后被组合以便将天线桅杆传输到本发明的有源电路。 因此,本发明操作以选择性地激励这些组的天线元件,以便沿着组合信号路径提供单个校准信号。 通过参考一次一个采样信号,本发明确定必要的相位调整,以产生天线元件处的信号的期望的相位关系。

    System and method providing amplification of narrow band signals with multi-channel amplifiers
    2.
    发明授权
    System and method providing amplification of narrow band signals with multi-channel amplifiers 有权
    利用多通道放大器提供窄带信号放大的系统和方法

    公开(公告)号:US06243038B1

    公开(公告)日:2001-06-05

    申请号:US09213980

    申请日:1998-12-17

    IPC分类号: H01Q322

    CPC分类号: H01Q3/28 H01Q3/26

    摘要: Systems and methods are taught whereby amplification of narrowband signals may be accomplished by linear power amplifiers requiring the presence of a communicated broadband signal in order to make internal adjustments necessary for linear operation. A preferred embodiment is described utilizing an input of a distributed amplifier assembly unused by the signals of interest in order to inject an emulated CDMA tone operable as a pilot tone for use by the linear power amplifiers.

    摘要翻译: 教导了系统和方法,其中窄带信号的放大可以由需要存在所传送的宽带信号的线性功率放大器来实现,以便进行线性操作所需的内部调整。 利用由感兴趣的信号未使用的分布式放大器组件的输入来描述优选实施例,以便注入可操作为导频音的模拟CDMA音调以供线性功率放大器使用。

    Planar antenna array with parasitic elements providing multiple beams of varying widths
    3.
    发明授权
    Planar antenna array with parasitic elements providing multiple beams of varying widths 有权
    具有寄生元件的平面天线阵列,提供多个不同宽度的波束

    公开(公告)号:US06317100B1

    公开(公告)日:2001-11-13

    申请号:US09351276

    申请日:1999-07-12

    IPC分类号: H01Q2100

    CPC分类号: H01Q21/22

    摘要: An antenna system adapted to provide antenna beams having various characteristics, such as various beam widths and/or different orientations, is disclosed. In a preferred embodiment, the antenna system is adapted to provide forward link signals in wide antenna beams while providing reverse link signals in narrow antenna beams. In the preferred embodiment multiple forward link wide beams are provided to allow uniform radiation of forward link signals throughout a desired area, such as a sector of a cell, while multiple non-overlapping narrow antenna beams are provided in the reverse link. In the preferred embodiment passive or parasitic antenna elements are utilized in the antenna array to provide symmetric current distribution in the antenna array to provide multiple beams having uniform characteristics.

    摘要翻译: 公开了一种适于提供具有各种特性(例如各种波束宽度和/或不同取向)的天线波束的天线系统。 在优选实施例中,天线系统适于在宽天线波束中提供前向链路信号,同时在窄天线波束中提供反向链路信号。 在优选实施例中,提供多个前向链路宽波束以允许前向链路信号在整个期望的区域(诸如小区的扇区)的均匀辐射,而在反向链路中提供多个不重叠的窄天线波束。 在优选实施例中,无源或寄生天线元件用于天线阵列中以在天线阵列中提供对称电流分布,以提供具有均匀特性的多个波束。