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    • 7. 发明授权
    • Frequency compensating reflector antenna
    • 频率补偿反射天线
    • US4342035A
    • 1982-07-27
    • US83917
    • 1979-10-11
    • Iain AndersonRalph BenjaminThomas R. Morgan
    • Iain AndersonRalph BenjaminThomas R. Morgan
    • H01Q11/10H01Q15/00H01Q19/15
    • H01Q15/0026H01Q11/10H01Q19/15
    • A reflector antenna comprising a reflector system, and a feed system, for instance a log-periodic feed system, the phase center of which moves with frequency, for illuminating the reflector system to produce a substantially focussed antenna beam. To compensate for frequency variations in the position of the phase-center of the feed system, the reflector system includes a frequency dependent reflector the effective surface of reflection of which varies with frequency to cause the focus of the reflector system to move with the phase-center of the feed system. A number of different forms of suitable frequency dependent reflectors are described, employing composite arrangements frequency selective mesh or grid reflector elements, or arrays of reflecting horns or wedges.
    • 一种反射器天线,包括反射器系统和馈电系统,例如对数周期性馈电系统,其相位中心随频率移动,用于照亮反射器系统以产生基本上聚焦的天线波束。 为了补偿进给系统的相位中心的位置的频率变化,反射器系统包括频率相关反射器,其有效反射面随频率变化,导致反射器系统的焦点随着相位 - 饲料系统的中心。 使用复合布置频率选择性网格或网格反射器元件或反射喇叭或楔形的阵列来描述多种不同形式的合适的频率相关反射器。