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    • 8. 发明申请
    • RLSA ANTENNA HAVING TWO ORTHOGONAL LINEAR POLARISATIONS
    • 具有两个正交线性极化的RLSA天线
    • WO2004019451A1
    • 2004-03-04
    • PCT/EP2003/050357
    • 2003-08-04
    • THOMSON LICENSING S.A.PINTOS, Jean-FrançoisCHAMBELIN, PhilippeLOUZIR, Ali
    • PINTOS, Jean-FrançoisCHAMBELIN, PhilippeLOUZIR, Ali
    • H01Q13/10
    • H01Q21/064H01Q13/10H01Q21/0043
    • The network antenna of the RLSA type in the form of a radial waveguide (3) has a feed structure allowing simultaneous excitation of the antenna in two orthogonal linear polarizations. The feed structure, essentially placed to the rear of the antenna, consists of a circular waveguide (6) placed at the centre of the radial waveguide and coupled to the latter by two circular slots (7, 8) for the excitation of the antenna in a first linear polarization and of a coaxial waveguide (10) surrounding the circular waveguide (6) and coupled to the radial waveguide (3) by radial slots (12), the coaxial waveguide (10) being excited by a ringshaped waveguide (9) placed coaxially on the outer periphery of the coaxial waveguide and coupled to the latter by slots (11) distributed around the inner periphery of the ring for the excitation of the antenna in a second linear polarization orthogonal to the first linear polarization.
    • 辐射波导(3)形式的RLSA型网络天线具有允许天线在两个正交线性偏振中同时激励的馈电结构。 馈电结构基本上放置在天线的后部,由放置在径向波导中心的圆形波导(6)组成,并通过两个圆形槽(7,8)耦合到圆形波导,用于激发天线 围绕所述圆形波导(6)并且通过径向槽(12)耦合到所述径向波导(3)的同轴波导(10)的第一线性偏振和所述同轴波导(10),所述同轴波导(10)被环形波导(9)激励, 同轴地布置在同轴波导的外周上,并且通过分布在环的内周边的槽(11)耦合到同轴波导的外周,用于以与第一线性极化正交的第二线性偏振激励天线。