Phased array antenna using aperiodic lattice formed of aperiodic subarray lattices
    1.
    发明授权
    Phased array antenna using aperiodic lattice formed of aperiodic subarray lattices 有权
    使用非周期子阵列晶格形成的非周期晶格的相控阵天线

    公开(公告)号:US06456244B1

    公开(公告)日:2002-09-24

    申请号:US09911350

    申请日:2001-07-23

    IPC分类号: H01Q136

    摘要: A phased array antenna (10) includes a plurality of subarray lattices (16) arranged in an aperiodic array lattice (14). Each subarray lattice (16) includes a plurality of antenna elements (20) arranged in an aperiodic configuration such as formed on a multilayer circuit board (24). Electronic circuitry (26) are supported by the circuit board and mounted between the antenna elements (20) and operatively connected thereto for amplifying, phase shifting and beam forming any transmitted or received signals.

    摘要翻译: 相控阵天线(10)包括布置在非周期阵列格(14)中的多个子阵列(16)。 每个子阵列(16)包括以非周期性构造布置的多个天线元件(20),其形成在多层电路板(24)上。 电子电路(26)由电路板支撑并且安装在天线元件(20)之间并可操作地连接到天线元件(20)上,用于放大,相移和波束形成任何发送或接收的信号。

    All digital phased array using space/time cascaded processing
    2.
    发明授权
    All digital phased array using space/time cascaded processing 失效
    所有数字相控阵使用空间/时间级联处理

    公开(公告)号:US06738018B2

    公开(公告)日:2004-05-18

    申请号:US10136673

    申请日:2002-05-01

    IPC分类号: H01Q326

    摘要: The invention concerns a method and apparatus for cascaded processing of signals in a phased array antenna system in which a plurality of antenna elements are configured as a plurality of sub-arrays. A weighting factor is applied to each of the antenna elements to form a plurality of sub-array beams, each pointed in a selected direction. For each sub-array, an output from each the antenna elements in the sub-array can be combined to produce a sub-array output signal. The sub-array output signals are selectively weighted and combined in a fully adaptive process. Subsequently, the system can estimate an angle-of-arrival direction for a signal-of-interest (“SOI”) and at least one signal-not-of-interest (“SNOI”). Based on this estimating step, the system calculates a new set of weighting factors for controlling one or more of the sub-array beams to improve the signal-to-noise plus interference ratio obtained for the SOI in the array output signal.

    摘要翻译: 本发明涉及一种在相控阵天线系统中级联处理信号的方法和装置,其中多个天线元件被配置为多个子阵列。 对每个天线元件施加加权因子以形成多个子阵列波束,每个子阵列波束指向所选择的方向。 对于每个子阵列,可以组合子阵列中每个天线元件的输出以产生子阵列输出信号。 子阵列输出信号被选择性地加权并在完全适应的过程中组合。 随后,系统可以估计感兴趣信号(“SOI”)和至少一个不感兴趣的信号(“SNOI”)的到达方向。 基于该估计步骤,系统计算用于控制一个或多个子阵列波束的一组新的加权因子,以改善在阵列输出信号中为SOI获得的信噪比加干扰比。

    Spiral wound, series fed, array antenna
    3.
    发明授权
    Spiral wound, series fed, array antenna 失效
    螺旋缠绕,串联馈线,阵列天线

    公开(公告)号:US06646621B1

    公开(公告)日:2003-11-11

    申请号:US10131962

    申请日:2002-04-25

    IPC分类号: H01Q2100

    摘要: A phased array antenna includes a circuit board and a balanced, series fed antenna array formed from a plurality of antenna elements positioned in at least two spiral antenna arms on the circuit board. At least one signal feed point is positioned at a center portion of the spiral antenna arms for series feeding the antenna array and conducting transmitted and received signals and breaking up frequency scan and grating lobes.

    摘要翻译: 相控阵天线包括电路板和由定位在电路板上的至少两个螺旋天线臂中的多个天线元件形成的平衡的串联馈电天线阵列。 至少一个信号馈电点位于螺旋天线臂的中心部分,用于串联馈送天线阵列并传导发射和接收的信号以及分解频率扫描和栅瓣。

    Phased array antenna with subarray lattices forming substantially rectangular aperture
    4.
    发明授权
    Phased array antenna with subarray lattices forming substantially rectangular aperture 失效
    具有形成基本矩形孔径的子阵列的相控阵天线

    公开(公告)号:US07348929B2

    公开(公告)日:2008-03-25

    申请号:US11222445

    申请日:2005-09-08

    IPC分类号: H01Q21/00

    CPC分类号: H01Q21/22

    摘要: A phased array antenna includes a plurality of subarray lattices connected together in a linear configuration and forming a substantially rectangular aperture. Each subarray lattice is clocked progressively to obtain an aperiodic aperture and reduce grating lobes.

    摘要翻译: 相控阵天线包括以线性配置连接在一起并形成大致矩形孔径的多个子阵列阵列。 每个子阵列逐渐被计时以获得非周期性孔径并减少光栅瓣。