发明公开
EP1239536A2 Cellular base station telecommunication system, method for downtilting a beam and antenna control arrangement 无效
用于蜂窝电信系统的基站,对于叶向下倾角和天线控制设备的方法

Cellular base station telecommunication system, method for downtilting a beam and antenna control arrangement
摘要:
An antenna control system enabling the remote variation of antenna beam tilt. 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. A controller (80) enables the beam tilt of a number of antenna at a site to be remotely varied.
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