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    • 1. 发明授权
    • Doppler VOR
    • 多普勒VOR
    • US4591861A
    • 1986-05-27
    • US589970
    • 1984-03-15
    • Werner Kautz
    • Werner Kautz
    • G01S1/38G01S1/40G01S1/44
    • G01S1/40
    • In a doppler VOR, a plurality of antennas (1) are arranged equidistantly on a circle (20). Two opposite antenna pairs on the circle are simultaneously activated by a commutator (13) in a manner to simulate as uniform a rotation of two opposite antennas as possible. Reciprocal power dividers (12) are disposed in the lines (15) between the commutator and the antennas. They couple out a given portion of the transmitter signal and transfer it to the two next antennas but one (I, V) in relation to an active antenna (III). These two antennas (I, V), the active antenna (III), and the two intermediate antennas (II, IV), which act as parasitic elements, form an antenna group. Since two adjacent antennas are active simultaneously, two antenna groups are active simultaneously. Their radiation patterns are approximately elliptical. The portion of the extracted energy and the phase shift produced by the RF lines are so chosen that a user--due to the superposition of the two elliptical radiation patterns--sees an approximately circular radiation pattern in all spatial directions.
    • 在多普勒VOR中,多个天线(1)等距地布置在圆(20)上。 圆的两个相对的天线对由换向器(13)同时激活,以便尽可能模拟两个相对的天线的均匀旋转。 互换功率分配器(12)设置在换向器和天线之间的线路(15)中。 它们耦合出发射机信号的给定部分并将其传送到两个下一个天线,而相对于有源天线(III)传送一个(I,V)。 作为寄生元件的这两个天线(I,V),有源天线(III)和两个中间天线(II,IV)形成天线组。 由于两个相邻天线同时有效,所以两个天线组同时有效。 它们的辐射方向近似椭圆形。 提取的能量的部分和由RF线产生的相移被选择为使得用户由于两个椭圆辐射图案的叠加而在所有空间方向上看到近似圆形的辐射图案。
    • 6. 发明授权
    • Array antenna for radiating doppler coded pattern using phase control
    • 使用相位控制放大多普勒编码图案的阵列天线
    • US3864680A
    • 1975-02-04
    • US34750773
    • 1973-04-03
    • HAZELTINE CORP
    • HANNAN PETER W
    • G01S1/38G01S1/40H01Q3/34
    • G01S1/40H01Q3/34
    • Disclosed are array antenna systems for radiating wave energy signals in a Doppler coded pattern. These systems include an array of antenna elements, means for supplying wave energy signals to the elements and means for controlling the phase of the wave energy signals supplied so that wave energy signals radiated by adjacent pairs of elements have a direction of phase reinforcement which is constantly changing and no two pairs of elements in the array have the same direction of phase reinforcement at the same instant of time. The invention may be applied to many array configurations including circular, cylindrical, linear and planar arrays.
    • 公开了用于以多普勒编码模式辐射波能量信号的阵列天线系统。 这些系统包括天线元件阵列,用于向元件提供波能信号的装置和用于控制提供的波能信号的相位的装置,使得由相邻元件对辐射的波能信号具有恒定的相位增强方向 阵列中的两对元素在相同时刻具有相同方向的相位强化。 本发明可以应用于包括圆形,圆柱形,线性和平面阵列的许多阵列配置。