Dual gridded reflector antenna
    1.
    发明授权
    Dual gridded reflector antenna 有权
    双网格反射天线

    公开(公告)号:US6052095A

    公开(公告)日:2000-04-18

    申请号:US267097

    申请日:1999-03-10

    摘要: An improved dual gridded reflector antenna configuration which allows cross-polarization radiation to be scanned in any given direction. The dual-gridded reflector assembly includes a front parabolic reflector illuminated by a first source, and a second parabolic reflector illuminated by a second source. The second reflector is positioned adjacent to and behind the front reflector such that the center points of the reflectors align to define a center axis. Additionally, the first and second sources are positioned at different offsets with respect to the reflectors and have a respective rotated offset angle with respect to the center axis such that the sources define an antenna feed separation. By modifying the offsets and the rotated offset angles, the feed separation can be designed to have an inclination with respect to the north-south or east-west feed separation direction.

    摘要翻译: 改进的双网格反射器天线配置,允许在任何给定方向上扫描交叉极化辐射。 双网格反射器组件包括由第一源照射的前抛物面反射器和由第二源照射的第二抛物面反射器。 第二反射器定位成与前反射器相邻并在其后面,使得反射器的中心点对准以限定中心轴线。 此外,第一和第二源相对于反射器定位在不同的偏移处,并且相对于中心轴线具有相应的旋转偏移角,使得源限定天线馈送间隔。 通过改变偏移量和旋转的偏移角度,进给分离可以被设计成相对于南北或东西方的进给分离方向具有倾斜度。