Patent ID: 8743008

Claim:
A base station antenna comprising: at least two reflection plates each having at least one radiation element; a radome forming an internal cavity and containing the at least two reflection plates; first and second caps coupled to cover openings formed on upper and lower portions of the radome, respectively; a reflection plate connection member connected to each of the at least two reflection plates and to the first and second caps so that the at least two reflection plates can rotate; a reflection plate rotation driving unit comprising at least one power generation unit configured to provide rotation power and at least one power transmission mechanism unit configured to provide at least one reflection plate with rotation power from the power generation unit and control the rotation angle of the reflection plate provided with the rotation power, one of the power generation unit and the power transmission mechanism unit being coupled to the at least two reflection plates, and the other being coupled to the first cap; a reflection plate retention unit coupled to the at least two reflection plates and to the second cap to guide rotation and retention of the reflection plates; and a reflection plate control unit configured to provide the reflection plate rotation driving unit and the reflection plate retention unit with a control signal for controlling rotation and standstill of the at least two reflection plates.