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    • 2. 发明授权
    • Earth station antenna system
    • 地球站天线系统
    • US5657031A
    • 1997-08-12
    • US637567
    • 1991-01-07
    • Fredrick C. AndersonPaul GaskeNicholas MoldovanPeter L. GardnerChang S. Kim
    • Fredrick C. AndersonPaul GaskeNicholas MoldovanPeter L. GardnerChang S. Kim
    • H01Q1/12H01Q3/00
    • H01Q1/125
    • A small aperture satellite ground station communications antenna is disclosed. A rectangular section of a curved parabolic reflector is provided having first and second rectangular dimensions. An azimuth elevation pedestal for positioning the reflector is provided such that the antenna bore sight is aligned with a geostationary satellite. The reflector is supported by the pedestal to permit rotation of the reflector about a third polarization axis for the antenna. The rotation along the polarization axis permits the reflector to be optimally positioned such that its long dimension is aligned with an orbital arc of a geostationary satellite. Angle scales are provided on all three axes to facilitate repositioning to other satellites based on an initial satellite location, which serves as a reference for the scales.
    • 公开了一种小孔径卫星地面站通信天线。 提供了具有第一和第二矩形尺寸的弯曲抛物面反射器的矩形截面。 提供了用于定位反射器的方位角仰台,使得天线孔视线与对地静止卫星对准。 反射器由基座支撑以允许反射器围绕天线的第三偏振轴旋转。 沿着偏振轴的旋转允许反射器被最佳地定位,使得其长尺寸与对地静止卫星的轨道弧对准。 在所有三个轴上提供角度刻度,以便根据初始卫星位置重新定位到其他卫星,作为缩放的参考。