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公开(公告)号：EP0597318A3
公开(公告)日：1994-11-02
申请号：EP93117371.0
申请日：1993-10-27
CPC分类号： H01Q19/17 , H01Q5/45 , H01Q19/132
摘要： A cheap and easily installable multibeam antenna is provided for receiving the waves simultaneously from plural numbers of communication satellites and from a broadcast satellite, which have different stationary orbits over the equator . An offset parabolic face is employed as a reflector of the antenna and a converter with a primary radiator for receiving communication satellite is set at the focus point of the offset parabolic face, and a converter with a primary radiator for receiving a broadcast satellite is set near the envelope of the reflected wave at the offset parabolic face, and the antenna, which is directed to the communication satellite, is installed so that the plane of symmetry of the offset parabolic face is coincide with the plane specified by the communication satellite, the broadcast satellite and the receiving point.
摘要翻译： 提供便宜且易于安装的多波束天线，用于同时接收来自多个通信卫星和来自广播卫星的波，所述卫星在赤道上具有不同的固定轨道。 偏移抛物面被用作天线的反射器，并且具有用于接收通信卫星的主辐射器的转换器被设置在偏移抛物面的焦点处，并且具有用于接收广播卫星的主辐射器的转换器被设置在靠近 在偏移抛物面上的反射波的包络线和指向通信卫星的天线的安装使得偏移抛物面的对称平面与由通信卫星规定的平面重合，广播 卫星和接收点。
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公开(公告)号：EP0597318A2
公开(公告)日：1994-05-18
申请号：EP93117371.0
申请日：1993-10-27
CPC分类号： H01Q19/17 , H01Q5/45 , H01Q19/132
摘要： A cheap and easily installable multibeam antenna is provided for receiving the waves simultaneously from plural numbers of communication satellites and from a broadcast satellite, which have different stationary orbits over the equator .
An offset parabolic face is employed as a reflector of the antenna and a converter with a primary radiator for receiving communication satellite is set at the focus point of the offset parabolic face, and a converter with a primary radiator for receiving a broadcast satellite is set near the envelope of the reflected wave at the offset parabolic face, and the antenna, which is directed to the communication satellite, is installed so that the plane of symmetry of the offset parabolic face is coincide with the plane specified by the communication satellite, the broadcast satellite and the receiving point.摘要翻译： 提供便宜且易于安装的多波束天线，用于从多个通信卫星和在赤道上具有不同静止轨道的广播卫星同时接收波。 使用偏移抛物面作为天线的反射器，并且将具有用于接收通信卫星的初级辐射器的转换器设置在偏移抛物线面的焦点处，并且将具有用于接收广播卫星的初级辐射器的转换器设置在靠近 偏移抛物面上的反射波的包络线和指向通信卫星的天线被安装成使得偏移抛物面的对称平面与由通信卫星指定的平面重合，广播 卫星和接收点。
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公开(公告)号：EP0597318B1
公开(公告)日：2006-06-28
申请号：EP93117371.0
申请日：1993-10-27
CPC分类号： H01Q19/17 , H01Q5/45 , H01Q19/132
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公开(公告)号：EP0642187A1
公开(公告)日：1995-03-08
申请号：EP94306504.5
申请日：1994-09-01
IPC分类号： H01P1/17
CPC分类号： H01P1/172
摘要： A circular-linear polarizer comprising a waveguide and a one-quarter wave length plate installed on the inside wall of the waveguide having a close junction between them, the inside wall of the waveguide having a flat part for the flat junction surface of the one-quarter wave length plate, or the junction surface of the one quarter wqve length plate having a circular cross section for a circular inside cross section of the waveguide, improving the electrical contact between them and the cross polarization and axial ratio while keeping the good impedance characteristic.
摘要翻译： 一种圆形线性偏振器，包括波导和安装在波导的内壁上的四分之一波长板，其中它们之间具有紧密的连接，波导的内壁具有用于单向波导的平坦连接表面的平坦部分， 四分之一波长板或四分之一波长长度板的接合面，其具有用于波导的圆形内部横截面的圆形横截面，从而改善它们之间的电接触和交叉极化和轴向比，同时保持良好的阻抗特性 。
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