A Passive Beam Reconfigurable Antenna System for Millimeter-wave Applications

This paper presents the performance of a pathfinder beam reconfigurable antenna system for mm-wave applications. The system is completely passive and can provide continuous three-dimensional beam scanning in a conical region of ±40° from boresight direction. It uses a pair of near-field dielectric structures, inspired from optical prisms, introducing a pre-calculated phase gradient to the incoming wave front from a source antenna, and redirecting the radiated beam to an arbitrary direction with in a conical region with an apex angle of 80°. The proposed system can provide a peak gain of 20.7 dBi and does not require expensive phase shifters and a power distribution network.