ANTENNA SYSTEM FOR ENHANCING THE COVERAGE AREA, RANGE AND RELIABILITY OF WIRELESS BASE STATIONS
    1.
    发明公开
    ANTENNA SYSTEM FOR ENHANCING THE COVERAGE AREA, RANGE AND RELIABILITY OF WIRELESS BASE STATIONS 失效
    天线系统完善的检测区,而在可靠性无线基站

    公开(公告)号:EP0943164A1

    公开(公告)日:1999-09-22

    申请号:EP97909849.0

    申请日:1997-09-15

    申请人: Raytheon Company

    IPC分类号: H01Q21 H01Q3 H01Q23 H04B7

    摘要: An active antenna system which has a plurality of antenna elements arranged in a column with each element or subarray of elements integrated with an amplifier and other beam forming components. A separate amplifier and filter are disposed immediately adjacent and connected to each of the antenna elements or a subarray of antenna elements and a separate combiner/divider is connected to each of the amplifiers. The antenna elements, amplifier and filter are disposed on a common support. A base station is connected by the feed cables and is remote from each amplifier. A first group of the antenna elements with low power amplifiers forms a transmitting antenna system and/or a second group of the active antenna elements with low noise amplifiers forms a receiving antenna system. A variable attenuator and a variable phase shift circuit can be integrated with each amplifier and can be used for beam shaping and electronic beam pointing. For diversity combining, spatially separated or polarization diverse active antennas are used. For polarization diverse active antennas, implementation involves a shared column or two colocated orthogonally polarized columns.

    摘要翻译: 一种有源天线系统,其具有与每个元件或者与放大器和对于其他波束形成组件集成的元件的子阵列的列布置的天线元件的复数。 一个单独的放大器和滤波器设置成紧邻并连接到每个天线元件或天线元件的子阵列和一个单独的组合器/分配器的连接到每个放大器。 天线元件,放大器和滤波器被布置在一个共同的支持。 基站通过馈电电缆连接,并且远离每个放大器。 具有低功率的放大器的天线元件的第一基团形成一个发射天线的系统和/或具有低噪声放大器的有源天线元件的第二组形成一个接收天线系统。的可变衰减器和可变移相电路可以与集成 每个放大器和可用于光束整形和电子束指向。 对于分集组合,在空间上分离或偏振分集有源天线被使用。 对于偏振各种有源天线,实施涉及一个共享的列或两个共置正交极化列。