BASE STATION ANTENNAS WITH MECHANICAL LINKAGES HAVING FLEXIBLE DRIVE SHAFTS

摘要

Base station antennas include a remote electronic tilt ("RET") actuator, a phase shifter and a mechanical linkage that extends between the RET actuator and the phase shifter. The mechanical linkage includes at least one guide tube and a monolithic flexible drive shaft that extends through the at least one elongate guide member. The monolithic flexible drive shaft includes at least one bend that is greater than twenty degrees.