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    CROSS-DIPOLE ANTENNA
    3.
    发明公开
    CROSS-DIPOLE ANTENNA 有权
    KREUZDIPOLANTENNE

    公开(公告)号：EP2462657A2

    公开(公告)日：2012-06-13

    申请号：EP10806950.1

    申请日：2010-07-29

    申请人： Venti Group, LLC

    发明人： PAYNE, William, Ernest

    IPC分类号： H01Q9/16 ,  H01Q9/44

    CPC分类号： G06F17/5009 ,  H01Q1/36 ,  H01Q9/28 ,  H01Q21/205 ,  H01Q21/24 ,  H01Q21/26

    摘要： An apparatus has an improved antenna pattern for a cross dipole antenna. Such antennas desirably have an omnidirectional antenna pattern. Conventional cross dipole antennas exhibit nulls in their antenna patterns, which can cause antennas to deviate from a standard or specification. Applicant recognized and confirmed that the connection of a coaxial cable to the antenna arms is a cause of the nulls in the antenna pattern, and has devised techniques disclosed herein to compensate or cancel the effects of the connection. In one embodiment, the arms of the cross dipole antenna that are coupled to a center conductor of the coaxial cable remain of conventional length, but the arms of the cross dipole antenna that are coupled to a shield of the coaxial cable are lengthened by a fraction of the radius of the outer diameter of the coaxial cable.

    摘要翻译： 一种装置具有用于交叉偶极子天线的改进的天线方向图。 这样的天线希望具有全向天线方向图。 传统的交叉偶极子天线在它们的天线方向上表现为零，这可能导致天线偏离标准或规格。 申请人认识到并证实了同轴电缆与天线臂的连接是天线方向图中的零点的原因，并且已经设计了本文公开的技术来补偿或消除连接的影响。 在一个实施例中，耦合到同轴电缆的中心导体的交叉偶极天线的臂保持常规长度，但是耦合到同轴电缆的屏蔽的交叉偶极子天线的臂被延长了一部分 的同轴电缆外径的半径。