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    • 22. 发明申请
    • ADAPTIVE DIVERSITY ANTENNA SYSTEM
    • 自适应多样性天线系统
    • WO2005065122B1
    • 2005-12-15
    • PCT/US2004040808
    • 2004-12-07
    • MOTOROLA INCSTRATIS GLAFKOSEMRICK RUDY MCORRAL CELESTINO AEMAMI SHAHRIARSIBECAS SALVADOR
    • STRATIS GLAFKOSEMRICK RUDY MCORRAL CELESTINO AEMAMI SHAHRIARSIBECAS SALVADOR
    • H04B7/08H04B1/06H04B7/10H04Q7/20
    • H04B7/0871H04B7/0874H04B7/10
    • An antenna system (205) includes an antenna structure (215), a receiver (220), and an antenna system controller (225). The antenna structure includes an arrangement of antennas (237), a signal combiner (240), and a switching matrix (235). The arrangement of antennas is designed to have a set of antenna element separations that are optimized to provide lowest correlation coefficients of intercepted radio signals for a corresponding set of electromagnetic environment types that vary from a very low density scattering environment to a maximum density scattering environment. The antennas (230), (231), (232), (233), (234) in the antenna arrangement each include at least one element that has a common polarization. There is at least one antenna that is a dual polarized antenna. The antenna system selects an antenna element pair that corresponds to the environment type which it is operating and thereby receives a best combined signal.
    • 天线系统(205)包括天线结构(215),接收器(220)和天线系统控制器(225)。 天线结构包括天线布置(237),信号组合器(240)和开关矩阵(235)。 天线布置被设计成具有一组天线元件间隔,所述天线元件间隔被优化以针对从非常低密度散射环境变化到最大密度散射环境的对应组的电磁环境类型提供截取无线电信号的最低相关系数。 天线装置中的天线(230),(231),(232),(233),(234)各自包括具有共同极化的至少一个元件。 至少有一个天线是双极化天线。 天线系统选择与其正在工作的环境类型相对应的天线元件对,从而接收最佳组合信号。