REFLECTOR ANTENNA FOR A SYNTHETIC APERTURE RADAR
    1.
    发明申请
    REFLECTOR ANTENNA FOR A SYNTHETIC APERTURE RADAR 有权
    合成孔径雷达的反射天线

    公开(公告)号:US20140225798A1

    公开(公告)日:2014-08-14

    申请号:US14233816

    申请日:2012-07-17

    IPC分类号: H01Q19/17

    摘要: The invention relates to a reflector antenna for a synthetic aperture radar, having a reflector (20) which comprises a reflector surface (22), a vertex (26), and an optical axis (24) extending outwards therefrom. The reflector antenna also has a plurality of antenna elements (18) arranged side by side and in a row, for transmitting radar transmission signals and receiving radar reception signals produced from a reflection on a surface (14). The reflector (20) is designed as a one-dimensional defocused reflector (20) having two focal planes (40, 42). The optical axis (24) coincides with the line of inter-section (28) of two imaginary planes extending at right angles to one another, specifically a first (X-) plane (30) and a second (Y-) plane (32). The reflector (20) has, in the first (X-) plane (30), a first (X-) focal plane that extends at right angles thereto and to the optical axis (24), and, in the second (Y-) plane (32), a second (Y-) focal plane (42) which extends at right angles thereto and to the optical axis. The second (Y-) focal plane (42) is at a greater distance from the vertex than the first (X-) focal plane (40). When viewing the first (X-) plane (30) of the reflector (20), the antenna elements (18) are arranged side by side along an (X-) line (34) which extends in the first (X-) plane (30) at the height of the second (Y-) focal plane (42).

    摘要翻译: 本发明涉及一种用于合成孔径雷达的反射器天线,其具有包括反射器表面(22),顶点(26)和从其向外延伸的光轴(24)的反射器(20)。 反射器天线还具有多个天线元件(18)并排布置成一排,用于传输雷达传输信号并且接收由表面(14)上的反射产生的雷达接收信号。 反射器(20)被设计为具有两个焦平面(40,42)的一维散焦反射器(20)。 光轴(24)与彼此成直角延伸的两个假想平面的截面线(28)重合,特别是第一(X)面(30)和第二(Y-)面(32) )。 反射器(20)在第一(X)平面(30)中具有与其垂直延伸的光轴(24)的第一(X-)焦平面,并且在第二(Y- )平面(32),与其成直角地延伸到光轴的第二(Y-)焦平面(42)。 第二(Y-)焦平面(42)与第一(X)焦平面(40)的距离比顶点更大。 当观察反射器(20)的第一(X)面(30)时,天线元件(18)沿着(X)线(34)并排设置,该(X)线在第一(X)平面 (30)在第二(Y-)焦平面(42)的高度处。

    Reflector antenna for a synthetic aperture radar
    2.
    发明授权
    Reflector antenna for a synthetic aperture radar 有权
    用于合成孔径雷达的反射器天线

    公开(公告)号:US09531081B2

    公开(公告)日:2016-12-27

    申请号:US14233816

    申请日:2012-07-17

    摘要: A reflector antenna for synthetic aperture radar, having a reflector including a reflector surface, a vertex, and an optical axis. The reflector antenna also as a plurality of antenna elements arranged side by side and in a row, for transmitting radar transmission signals and receiving radar reception signals produced from a reflection on a surface. The reflector is designed as a one-dimensional defocused reflector having two focal planes. The optical axis coincides with the line of inter-section of two imaginary planes extending at right angles to one another. The reflector has, in a first (X-) plane, a first (X-) focal plane that extends at right angles thereto and to the optical axis, and, in a second (Y-) plane, a second (Y-) focal plane which extends at right angles thereto and to the optical axis. The second (Y-) focal plane is at a greater distance from the vertex than the first (X-) focal plane.

    摘要翻译: 一种用于合成孔径雷达的反射器天线,其具有包括反射器表面,顶点和光轴的反射器。 反射器天线也作为多个并排布置的天线元件,用于传送雷达传输信号并从表面上的反射产生的雷达接收信号。 反射器设计为具有两个焦平面的一维散焦反射器。 光轴与彼此成直角延伸的两个假想平面的截面线重合。 反射器在第一(X)平面中具有与其垂直延伸并与光轴延伸的第一(X-)焦平面,并且在第二(Y-)平面中,第二(Y-) 焦平面与光轴成直角地延伸。 第二(Y-)焦平面距顶点比第一(X-)焦平面更远。