发明申请
US20020167443A1 Planar, fractal, time-delay beamformer 失效
平面,分形,时延波束形成器

  • 专利标题: Planar, fractal, time-delay beamformer
  • 专利标题(中): 平面,分形,时延波束形成器
  • 申请号: US09863975
    申请日: 2001-05-23
  • 公开(公告)号: US20020167443A1
    公开(公告)日: 2002-11-14
  • 发明人: William E. McKinzie IIIJames D. Lilly
  • 主分类号: H01Q003/22
  • IPC分类号: H01Q003/22
Planar, fractal, time-delay beamformer
摘要:
An antenna beamformer is disclosed that uses controllable time delay elements distributed in a planar fractal feed network between the input port and multiple output ports. The use of time delay elements, rather than phase shifting elements, allows the beamformer to maintain a constant steering angle independent of frequencies over a broad range of frequencies. In addition, fewer control signals are used to control all of the time delay elements due to distributing the time delay elements throughout the fractal feed network, rather than grouping the delay elements near the output ports.
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