Small broadband antenna having polarization sensitive reflector system
    2.
    发明授权
    Small broadband antenna having polarization sensitive reflector system 失效
    小型宽带天线具有偏振敏感反射系统

    公开(公告)号:US4063249A

    公开(公告)日:1977-12-13

    申请号:US633023

    申请日:1975-11-17

    摘要: A broadband antenna system of small dimensions and composed of at least one antenna having an associated design operating frequency, and a plurality of reflectors operatively associated with the antenna and disposed at respectively different distances therefrom, each reflector being spaced from the antenna and having a reflection characteristic to be optimally matched with the antenna for operation at a respective partial frequency band, each reflector being associated with a different partial band such that the total operating frequency range of the system is divided into a plurality of partial bands equal in number to the number of reflectors and covering the design operating frequency range and a further frequency range below the lower limit of the design range, whereby the antenna characteristics are improved, and in particular the operative bandwidth of the system is increased in the low frequency direction.

    摘要翻译: 小尺寸的宽带天线系统由至少一个具有相关联的设计工作频率的天线组成,并且多个反射器与天线可操作地相关联并且设置在与天线分开不同的距离处,每个反射器与天线间隔开并具有反射 特性与天线进行最佳匹配以在相应的部分频带处操作,每个反射器与不同的部分频带相关联,使得系统的总工作频率范围被划分为多个等于数量的部分频带 并覆盖设计工作频率范围和低于设计范围下限的另一频率范围,从而提高了天线特性,特别是在低频方向增加了系统的工作带宽。

    Transmitting/receiving antenna having mirror symmetry and defined
polarizations
    3.
    发明授权
    Transmitting/receiving antenna having mirror symmetry and defined polarizations 失效
    具有镜像对称性和限定极化的发射/接收天线

    公开(公告)号:US4054886A

    公开(公告)日:1977-10-18

    申请号:US639604

    申请日:1975-12-10

    摘要: An antenna arrangement composed of at least two individual antennas of the same type and each having a pair of signal applying terminals, and a processing circuit connected to the terminals of the antennas for establishing a selected relation between the voltages across the terminals or between voltages derived from these voltages, wherein, for giving the arrangement a desired radiation polarization characteristic, the individual antennas and the circuit are arranged for causing the total radiation pattern of the arrangement to have mirror symmetry with respect to a selected plane.

    摘要翻译: 由相同类型的至少两个单独的天线组成并且每个具有一对信号施加端子的天线布置,以及连接到天线的端子的处理电路,用于建立端子之间的电压之间或者导出的电压之间的选择的关系 从这些电压,其中,为了给予所述布置所需的辐射极化特性,各个天线和电路被布置成使得布置的总辐射图相对于所选择的平面具有镜像对称性。