Patent ID: 6667714
Filing Date: 2003-12-23
Classification: H01Q

Abstract:
An apparatus for simultaneously controlling downtilt angles of two or more arrays of antenna elements, comprising:(a) for each array, a power splitter and a phase-shifter assembly configured to control the progressive phase shifts between successive elements in the array; (b) a common linkage connected to one or more movable components of each phase-shifter assembly; (c) a common motor configured to the linkage to convert motion of the common motor into motion of the linkage; and (d) a controller configured to control the motion of the common motor, wherein: the motion of the common motor causes the motion of the linkage which simultaneously moves the one or more components within each phase-shifter assembly to change the progressive phase shifts between successive elements in the corresponding array, thereby simultaneously changing the downtilt angles of the two or more arrays in a coordinated fashion; and the apparatus simultaneously controls the downtilt angles of an uplink antenna and a downlink antenna for a base station of a wireless communication network.