发明公开
EP1239538A3 Cellular base station antenna system for adjusting a fixed beam elevation
失效
对于蜂窝基站的天线系统,用于设置固定波束仰角
- 专利标题: Cellular base station antenna system for adjusting a fixed beam elevation
- 专利标题(中): 对于蜂窝基站的天线系统,用于设置固定波束仰角
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申请号: EP02012180.2申请日: 1995-10-16
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公开(公告)号: EP1239538A3公开(公告)日: 2003-04-02
- 发明人: Heinz, William Emil , Ehlen, Mathias Martin Ernest
- 申请人: ANDREW CORPORATION
- 申请人地址: 10500 West 153rd Street Orland Park Illinois 60462 US
- 专利权人: ANDREW CORPORATION
- 当前专利权人: ANDREW CORPORATION
- 当前专利权人地址: 10500 West 153rd Street Orland Park Illinois 60462 US
- 代理机构: Midgley, Jonathan Lee
- 优先权: NZ26486494 19941104; NZ27277895 19950815
- 主分类号: H01Q3/32
- IPC分类号: H01Q3/32 ; H01P1/18
摘要:
An antenna control system enabling the remote variation of antenna beam tilt is disclosed. A drive means (5, 30) continuously adjusts phase shifters (1, 2, 3; 36, 39, 40) of a feed distribution network to radiating elements, to continuously vary antenna beam tilt.
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