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16 条记录 (耗时 0.023 秒)

    Multiple beam steered subarrays antenna system
    6.
    发明授权
    Multiple beam steered subarrays antenna system 失效
    多波束转向子阵列天线系统

    公开(公告)号：US07064710B1

    公开(公告)日：2006-06-20

    申请号：US11058116

    申请日：2005-02-15

    申请人： David A. Ksienski ,  James P. McKay

    发明人： David A. Ksienski ,  James P. McKay

    IPC分类号： H01Q3/24

    CPC分类号： H01Q21/0006 ,  H01Q3/26

    摘要： A phased array antenna system divides the array into a plurality of subarrays that are driven by fine phase shifters with each subarray having a plurality of antenna elements driven by respective coarse phase shifters that are preferably MEMS coarse phase shifters having low weight and low cost and are infrequently used for improved reliability for selecting a coarse beam coverage area while the fine phase shifters are used to scan a high-gain antenna pattern within the selected coarse beam coverage area. Two-bit MEMS phase shifters are used to scan the beams from subarrays to various coverage areas within the required antenna field of view, thereby providing coarse beam steering for an array.

    摘要翻译： 相控阵天线系统将阵列划分为由精细移相器驱动的多个子阵列，其中每个子阵列具有由相应粗略移相器驱动的多个天线元件，优选地是具有低重量和低成本的MEMS粗移相器，并且分别是 很少用于提高用于选择粗略的波束覆盖区域的可靠性，而精细移相器用于扫描所选择的粗波束覆盖区域内的高增益天线方向图。 使用两位MEMS移相器将所述子阵列的波束扫描到所需天线视场内的各个覆盖区域，从而为阵列提供粗波束导向。

    Compact broadband non-contacting transmission line junction
    9.
    发明申请
    Compact broadband non-contacting transmission line junction 有权
    紧凑型宽带非接触传输线路接头

    公开(公告)号：US20090009271A1

    公开(公告)日：2009-01-08

    申请号：US11825494

    申请日：2007-07-06

    申请人： James P. McKay

    发明人： James P. McKay

    IPC分类号： H01P1/04

    CPC分类号： H01P1/202

    摘要： A transmission line junction for a coaxial conductor line has mating ends of interfitting cores, sleeves, and dielectrics for communicating broadband signals through the junction that blocks DC currents and voltages, the junction maintaining a quarter wavelength junction length for high frequency coupling while providing improved low frequency coupling across the junction.

    摘要翻译： 用于同轴导体线的传输线接头具有配线芯，套筒和电介质的配合端，用于通过阻塞直流电流和电压的接点传送宽带信号，该结保持四分之一波长结长以进行高频耦合，同时提供改进的低 跨接头的频率耦合。

    Symmetric N×N branch-line hybrid power divider/combiner
    10.
    发明授权
    Symmetric N×N branch-line hybrid power divider/combiner 有权
    对称NxN分支线路混合功率分配器/组合器

    公开(公告)号：US06522218B1

    公开(公告)日：2003-02-18

    申请号：US09528073

    申请日：2000-03-17

    申请人： James P. McKay

    发明人： James P. McKay

    IPC分类号： H01P512

    CPC分类号： H01P5/12

    摘要： A symmetric N×N branch-line hybrid power divider/combiner has N input ports and N output ports. The divider/combiner divides received powers at each input port and transmits and combines the divided powers to the output ports. The divider/combiner includes N through transmission lines, each coupling a respective input port to a respective output port. The divider/combiner also includes N input branch transmission lines, each coupling a respective input port to a central input node and N output branch transmission lines, each coupling a respective output port to a central output node.

    摘要翻译： 对称NxN分支线混合功率分配器/组合器具有N个输入端口和N个输出端口。 分频器/组合器在每个输入端口分配接收功率，并将分离的功率发送并组合到输出端口。 分频器/组合器包括N个通过传输线，每个将相应的输入端口耦合到相应的输出端口。 分频器/组合器还包括N个输入分支传输线，每个输入分支传输线将相应的输入端口耦合到中央输入节点和N个输出分支传输线，每个输出分支传输线将相应的输出端口耦合到中央输出节点。