Dielectric Superstrate Driven Design of MM-Wave Beam Scanning Antenna

In an urban environment, the propagation of millimeter (mm) waves is essentially multiple times reflective in nature, and the only efficient way they propagate in this environment, is by using a combination of Line of Sight (LOS) and Non-Line of Sight (N-LOS) mechanisms, which in turn require extensive beam scanning capability. This work focuses on the topic of smart beam-scanning techniques at millimeter waves without the use of conventional phase shifters that are quite lossy and expensive at mm-wave frequencies. Alternative strategies based on the use of varactors or P-I-N diodes, though cost-effective, are unable to perform beam scanning continuously. Given this background, in this work we propose a planar dielectric lens, to address the scanning issue by employing a novel technique. A Kaband linear array has been demonstrated for the beam scanning.