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    • 1. 发明申请
    • SIGNAL CROSS POLARIZATION SYSTEM AND METHOD
    • 信号交叉极化系统和方法
    • WO2004021507A3
    • 2005-02-03
    • PCT/US0327339
    • 2003-08-29
    • MOTOSATTRAVIS EDWARDJAMES JOHN
    • TRAVIS EDWARDJAMES JOHN
    • H01Q1/12H01Q5/00H01Q3/00G01S5/02
    • H01Q1/1257H01Q5/45
    • The present invention expedites cross polarization of a polarized signal from a transmitter such as a satellite. According to one method, an antenna is oriented to point to a first window (152) to communicate with a first satellite. The antenna is peaked to find a first vector (182) for maximum signal strength. The antenna is then oriented to point to a second window to communicate with a second satellite, and peaked to find a second vector for maximum signal strength. The first and second vectors are manipulated to obtain a third vector extending between the first and second satellites, and the skew angle for cross polarization of the antenna is derived from the third vector. Alternatively, the antenna may have two LNB's to permit peaking of the first and second satellites simultaneously. When both satellites are peaked, the antenna will automatically be disposed at the proper skew angle for cross polarization.
    • 本发明加速了诸如卫星的发射机的偏振信号的交叉极化。 根据一种方法,天线被定向为指向与第一卫星通信的第一窗口(152)。 天线达到峰值,找到最大信号强度的第一个矢量(182)。 天线然后被定向以指向与第二卫星通信的第二窗口,并且峰值以找到用于最大信号强度的第二矢量。 操纵第一和第二矢量以获得在第一和第二卫星之间延伸的第三矢量,并且从第三矢量导出天线的交叉极化的倾斜角。 或者,天线可以具有两个LNB,以允许同时对第一和第二卫星进行峰化。 当两颗卫星达到峰值时,天线将自动以适当的倾斜角度进行交叉极化。