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    • 161. 发明授权
    • Phased array antenna with couplers in spatial filter arrangement
    • 具有空间滤波器布置的耦合器的相控阵天线
    • US4876548A
    • 1989-10-24
    • US943419
    • 1986-12-19
    • Alfred R. Lopez
    • Alfred R. Lopez
    • H01Q3/22
    • H01Q3/22
    • A lossless spatial filter having N input ports and N output ports and printed on a single substrate. The filer is used in combination with an antenna system which radiates wave energy signals into a selected angular region of space and into a desired radiation pattern. The aperture of the system includes a plurality of N antenna elements. The antenna elements are arranged along a predetermined path and each element is connected to only one output port of the spatial filter. A beam steering unit controls the direction of radiation. A signal generator supplies a power divider having N output signal ports each connected to a phase shifter controlled by the beam steering unit.
    • 具有N个输入端口和N个输出端口并且印刷在单个基板上的无损空间滤波器。 滤波器与天线系统组合使用,其将波能量信号辐射到所选择的空间角度区域并进入期望的辐射图。 该系统的孔径包括多个N个天线元件。 天线元件沿预定路径布置,并且每个元件仅连接到空间滤波器的一个输出端口。 光束转向单元控制辐射方向。 信号发生器提供具有N个输出信号端口的功率分配器,每个输出信号端口连接到由光束转向单元控制的移相器。
    • 166. 发明授权
    • Apparatus and method of compensating a long highly dispersive traveling wave transmission line
    • 一种用于补偿长时间散射波浪传输线的装置和方法
    • US3643261A
    • 1972-02-15
    • US3643261D
    • 1969-10-09
    • ITT
    • KENWORTHY EARL LHIBBS RUSSELL R
    • H01Q3/22H01Q13/10
    • H01Q3/22
    • A method and structure for correcting and linearizing the phase distribution along the waveguide transmission line feed of a long, highly dispersive, slow-wave, N-element antenna array. The method involves the phase probing of the individual radiating elements of a linear array formed by slotting a serpentine waveguide feed. This probing is carried out in predetermined equal increments of Y-elements each. The measured phase over each of the increments of Y-elements is subtracted from a theoretical or reference phase desired at the predetermined element and the phase error ( Delta phi ) thus determined is divided by Y. Individual dielectric panels are affixed to the serpentine broad internal walls (''''a'''' dimension walls). Enough panels are inserted between the radiators of each adjacent pair to provide a - Delta phi /Y phase shift. The process is repeated N/Y times for each linear array. A twodimensional array can be assembled from M of these linear arrays, with each linear array having equal phase distribution characteristics overall and among its N-elements.
    • 一种用于校正和线性化长波长高分散慢波N元天线阵列的波导传输线馈电的相位分布的方法和结构。 该方法涉及通过开槽蛇形波导馈送形成的线性阵列的各个辐射元件的相位探测。 该探测以每个Y元素的预定相等增量进行。