Cellular base station antenna has radiators interconnected by transmission line and electromechanical phase adjustment system

摘要

The antenna includes several radiators and a transmission line interconnecting the radiators. An electromechanical phase adjustment system includes a phase adjuster connected to a signal feed and coupled to the transmission line. The phase adjuster has 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 the interconnected radiators between different phase values in a move-and-stop process. The moveable component is an accurately moveable wiper capacitively coupled to the transmission line. Independent claims are included for a cellular base station antenna assembly and for an antenna assembly.