Patent ID: 6864837
Filing Date: 2005-03-08
Classification: H01Q

Abstract:
1. An antenna system comprising: an array of antenna elements defining a boresight direction; a variable power divider using a single adjustable control element to divide an input voltage signal into a pair of complimentary amplitude voltage drive signals over a range of voltage amplitude division; a beam forming network receiving the voltage drive signals and producing a plurality of beam driving signals wherein each beam driving signal comprises a component from each voltage drive signal; a power distribution network delivering each beam driving signal to one or more associated antenna elements; and the beam driving signals driving the antenna elements to emit a beam exhibiting a directional tilt with respect to the boresight direction that varies within a range of tilt in response to changes of the voltage amplitude division within the range of voltage amplitude division; and a field adjustable tilt direction actuator for adjusting the voltage amplitude division and thereby adjusting the directional tilt of the beam.