Ground Planes for Reducing Multipath Reception by Antennas
    1.
    发明申请
    Ground Planes for Reducing Multipath Reception by Antennas 有权
    降低天线多路径接收的地面平面

    公开(公告)号:US20150015451A1

    公开(公告)日:2015-01-15

    申请号:US14357447

    申请日:2013-04-11

    IPC分类号: H01Q1/48

    摘要: An antenna system for a global navigation satellite system reference base station is disclosed.The antenna system includes an antenna positioned above a high capacitive impedance surface (HCIS) ground plane.Over a specific range of the lateral dimension of the HCIS ground plane and the height of the antenna above the HCIS ground plane, a high level of multipath suppression and high sensitivity for low-elevated satellites can be simultaneously maintained.The HCIS ground plane can be fabricated as a flat conducting plate with an array of conducting elements such as pins, pins with expanded tips, or mushroom structures. Alternatively, the HCIS can be fabricated as a flat conducting plate with a concentric series of choke rings.The antenna system can provide a positioning accuracy of +/−1 mm, an order of magnitude improvement over previous designs.

    摘要翻译: 公开了一种用于全球导航卫星系统参考基站的天线系统。 天线系统包括位于高容性阻抗表面(HCIS)接地平面上方的天线。 在HCIS接地面的横向尺寸的特定范围和天线高度在HCIS接地面之上的特定范围内,可以同时保持高水平的多径抑制和对低架卫星的高灵敏度。 可以将HCIS接地平面制造成具有导电元件阵列的平面导电板,例如引脚,具有扩展尖端的销或蘑菇结构。 或者,HCIS可以制造成具有同心的一系列扼流圈的平面导电板。 天线系统可以提供+/- 1 mm的定位精度,与以前的设计相比有一个数量级的改进。