Patent ID: 6573875
Filing Date: 2003-06-03
Classification: H01Q

Abstract:
A cellular base station antenna system configured to produce a beam of fixed elevation, comprising:an elongated panel antenna system adapted to mount a plurality of spaced radiators; a printed circuit board having conductive traces including a transmission line interconnecting at least selected ones of said radiators; and an electromechanical phase adjustment system including a phase adjuster connected to a signal feed coupled to said transmission line, said phase adjuster having at least one component intermittently moveable by an electrical actuator responsive to commands from a remote signal source to adjust the relative signal phasing of said interconnected radiators between different phase values, and thereby adjust the fixed elevation of the beam, said electrical actuator being positioned at an edge of said panel antenna and coupled to said moveable component of the phase shifter by a mechanical actuator extending lengthwise of said panel antenna, said electrical actuator having a receiver and transponder for communicating wirelessly with said remote source.