Planar gradient-index artificial dielectric lens and method for manufacture

摘要

A gradient index lens for electromagnetic radiation includes a dielectric substrate, a plurality of conducting patches supported by the dielectric substrate, the conducting patches preferably being generally square shaped and having an edge length, the edge length of the conducting patches varying with position on the dielectric substrate so as to provide a gradient index for the electromagnetic radiation. Examples include gradient index lenses for millimeter wave radiation, and use with antenna systems.

主权项

1. An apparatus, the apparatus being a gradient index lens for electromagnetic radiation, the apparatus including:
a dielectric substrate; a plurality of conducting patches, each patch having a continuous solid metal surface, formed as a square, supported by the dielectric substrate, the conducting patches each having centers located at intersections of a uniformly spaced regular square grid array arrangement on the dielectric substrate, each metal square having an edge length varying with position on the dielectric substrate, so as to provide a gradient index for the electromagnetic radiation.