Low profile lens and reflectarray design for MM waves

In this work, we present low profile lens and reflectarray design for millimeter wave. We use artificially engineered dielectric materials (Dial-a-Dielectric) for these designs. We present comparison results with legacy designs that show comparable or better performance. We compare results of a flat lens using commercial off-the-shelf (COTS) materials, as opposed to metamaterials that are often required in lens designs based on the Transformation Optics (TO) approach. While lens designs based on Ray Optics (RO) do not suffer from the above drawback, they still require dielectric materials that may not be available off-the-shelf.