Fresnel zone plate antenna

Abstract

The classic Fresnel zone plate has the advantage of being a flat, two-dimensional structure with a small thickness, light and easy to manufacture compared to the bulky refraction lens. In some cases, however, the zoned plate can be fabricated as a three-dimensional curvilinear assembly standing alone or conformal to some man-made or natural formation. This chapter is devoted to aperture antennas based on flat or curvilinear Fresnel zone plate lenses or reflectors. It is written as a self-sufficient text, which brings together most of the standard knowledge and recent research on the Fresnel zone plate antennas.