发明申请
- 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
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申请号: US09863975申请日: 2001-05-23
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公开(公告)号: US20020167443A1公开(公告)日: 2002-11-14
- 发明人: William E. McKinzie III , James D. Lilly
- 主分类号: H01Q003/22
- IPC分类号: H01Q003/22
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.
公开/授权文献
- US06590531B2 Planar, fractal, time-delay beamformer 公开/授权日:2003-07-08