BASE STATION ANTENNAS AND PHASE SHIFTER ASSEMBLIES ADAPTED FOR MITIGATING INTERNAL PASSIVE INTERMODULATION

摘要

The present disclosure describes a phase shifter assembly adapted for mitigating internal passive intermodulation within a base station antenna. The phase shifter assembly may include a mounting base formed of a non-metallic material; a first main printed circuit board and a second main printed circuit board attached to the mounting base, wherein each of the main printed circuit boards comprises a plurality of radio frequency transmission paths; a first wiper arm rotatably coupled to the first main printed circuit board and electrically coupled to at least some of the plurality of transmission paths; and a second wiper arm rotatably coupled to the second main printed circuit board and electrically coupled to at least some of the plurality of transmission paths on the second primary side of the main printed circuit board. Base station antennas adapted for mitigating internal passive intermodulation are also described.