发明名称 |
A tilt-dependent beam-shape system |
摘要 |
The present invention relates to a system for changing the radiation pattern shape of an antenna array 83; 88 during electrical tilting. The antenna array 83; 88 has multiple antenna elements 84, and the system comprises a phase-shifting device 10; 20; 40; 85 provided with a primary port 11 configured to receive a transmit signal, and multiple secondary ports 12 1 -12 4 ; 12 configured to provide phase shifted output signals to each antenna element 84. The system further comprises a phase-taper device 20; 40; 85; 87 that changes phase taper over the antenna elements, and thus the beam shape, with tilt angle ¸ tilt . The invention is adapted for use in up-link within a wireless communication system. |
申请公布号 |
EP2169762(A3) |
申请公布日期 |
2010.12.08 |
申请号 |
EP20090156292 |
申请日期 |
2006.10.16 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON AB (PUBL) |
发明人 |
MANHOLM, LARS;ANDERSSON, MATS H;JOHANSSON, MARTIN;PETERSSON, SVEN OSCAR |
分类号 |
H01Q3/30;H04B1/18 |
主分类号 |
H01Q3/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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