Patent ID: 7899496

Claim:
An antenna for communicating with mobile devices in a land-based cellular communication system via an antenna beam having a width and an angle, the antenna including: a plurality of radiating elements; and a feed network from a feed line to the radiating elements, the feed network including: adjustable power dividing means for varying the division of power between radiating elements so as to vary the width of the antenna beam; adjustable phase shifting means for varying the phase of signals supplied to or received from the radiating elements so as to vary the angle of the antenna beam; and a land-base antenna system including one or more antennas; control means adapted to provide signals to the antenna(s) to adjust a characteristic of the antenna beam; wherein the control means includes: means for receiving a command to change a beam characteristic of one of the antennas; means for calculating the beam characteristics required for all of the antennas to achieve a desired coverage; and means for adjusting one or more beam characteristic of each antenna as required to achieve the desired coverage.