Polyrod antenna with flared notch feed
    2.
    发明授权
    Polyrod antenna with flared notch feed 失效
    带有喇叭口槽的馈线天线

    公开(公告)号:US06208308B1

    公开(公告)日:2001-03-27

    申请号:US08253044

    申请日:1994-06-02

    申请人: Alan C. Lemons

    发明人: Alan C. Lemons

    IPC分类号: H01Q1300

    CPC分类号: H01Q13/24 H01Q13/085

    摘要: A polyrod antenna fed at an end by a flared notch antenna. The space required to feed the polyrod is reduced, and a broader operating bandwidth is achieved. Gain of the antenna can be increased by increasing the polyrod length. A number of the polyrod antennas can be packed together in an array configuration.

    摘要翻译: 天线通过喇叭形切口天线馈送到末端。 进料聚合物所需的空间减少,实现更宽的工作带宽。 天线的增益可以通过增加多边形长度来增加。 一些聚合天线可以以阵列配置打包在一起。

    Microwave antenna having wide angle scanning capability
    3.
    发明授权
    Microwave antenna having wide angle scanning capability 失效
    具有广角扫描能力的微波天线

    公开(公告)号:US5905472A

    公开(公告)日:1999-05-18

    申请号:US906699

    申请日:1997-08-06

    摘要: A planar array antenna having a switching matrix that couples an RF signal to two distributed ferrite scanning line feeds that feed a planar continuous transverse stub array antenna. The scanning line feeds couple RF energy to the antenna from opposite sides to form a total of four beams offset in space that each cover different angular scan sectors. The antenna has reduced complexity and lower design and production costs. The use of dual ferrite scanning line feeds, the switching matrix, and the continuous transverse stub antenna to obtain wide-angle scanning provides significantly improved performance. The present invention uses the two distributed ferrite scanning line feeds to obtain greater scan coverage at upper millimeter-wave frequencies, where realizable ferrite materials are less active and provide diminished scan capability. The scanning line feeds and planar array antenna may be designed so that the four scan sectors are contiguous, to increase the angular scan coverage of the antenna. The switching matrix is used to sequentially feed each of four RF ports, which effectively produces a single beam that scans over the four contiguous scan sectors.

    摘要翻译: 一种具有将RF信号耦合到两个分布式铁氧体扫描线馈电的平面阵列天线,其馈送平面连续横向短截线阵列天线。 扫描线从相对侧将耦合的RF能量馈送到天线,以形成在空间中偏移的总共四个光束,每个光束覆盖不同的角度扫描扇区。 天线降低了复杂性,降低了设计和生产成本。 使用双铁氧体扫描线馈电,开关矩阵和连续横向短截线天线获得广角扫描可显着提高性能。 本发明使用两个分布式铁氧体扫描线馈电来获得较高的毫米波频率的较大的扫描范围,其中可实现的铁氧体材料的活性较低,扫描能力降低。 扫描线馈电和平面阵列天线可以被设计成使得四个扫描扇区是连续的,以增加天线的角度扫描覆盖。 开关矩阵用于顺序馈送四个RF端口中的每一个,其有效地产生在四个相邻扫描扇区上扫描的单个波束。