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    • 27. 发明申请
    • CO-PHASED, DUAL POLARIZED ANTENNA ARRAY WITH BROADBAND AND WIDE SCAN CAPABILITY
    • 双重极化天线阵列,宽带扫描能力
    • US20130082893A1
    • 2013-04-04
    • US13249491
    • 2011-09-30
    • Allen WangFangchou YangHee Kyung Kim
    • Allen WangFangchou YangHee Kyung Kim
    • H01Q21/24
    • H01Q9/065H01Q9/26H01Q21/0087
    • Provided herein are devices, systems and techniques for establishing a coincident-phased dual polarization array aperture enabling a wide scan capability, while also presenting a bandwidth of at least about 40%. Radiating elements of such an array include a first ground plane extending between lower and upper edges and a first radiating element positioned above the upper edge of the first ground plane. The array elements also include a second ground plane extending between respective lower and upper edges and disposed substantially orthogonal to the first ground plane. A second radiating element is positioned above the upper edge of the second ground plane, such that the first and second radiating elements have different polarizations.Parallel ground planes of adjacent antenna elements of an array of like elements enhance array performance by providing isolation between such radiating elements and backplane ground by way of a phenomenon generally known as waveguide-below-cutoff.
    • 本文提供了用于建立同步双极化阵列孔径的设备,系统和技术,能够实现宽扫描能力,同时还呈现至少约40%的带宽。 这种阵列的辐射元件包括在下边缘和上边缘之间延伸的第一接地平面和位于第一接地平面的上边缘上方的第一辐射元件。 阵列元件还包括在相应的下边缘和上边缘之间延伸并且基本上垂直于第一接地平面布置的第二接地平面。 第二辐射元件位于第二接地平面的上边缘上方,使得第一和第二辐射元件具有不同的偏振。 相同元件阵列的相邻天线元件的平行接地面通过通常称为波导低于截止的现象,通过在这种辐射元件和背板接地之间提供隔离来增强阵列性能。