发明授权
- 专利标题: Omnidirectional antenna with hollow point source feed
- 专利标题(中): 全方位天线,带空心点馈源
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申请号: US7398申请日: 1987-01-27
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公开(公告)号: US4825222A公开(公告)日: 1989-04-25
- 发明人: Miles E. Butcher
- 申请人: Miles E. Butcher
- 申请人地址: GB2 London
- 专利权人: British Telecommunications PLC
- 当前专利权人: British Telecommunications PLC
- 当前专利权人地址: GB2 London
- 优先权: GBX8602246 19860130
- 主分类号: H01Q17/00
- IPC分类号: H01Q17/00 ; H01Q19/10 ; H01Q19/17
摘要:
An omnidirectional antenna comprises a ring-shaped subreflector surrounding an omnidirectional feed and a ring-shaped main reflector for redirecting radiation from the subsidiary reflector to the target zone. The feed has a focal ring and a hollow centre to accommodate supports, feeders etc which facilitates stacking of antennas.
公开/授权文献
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