Reflectarrays: Potentials and Challenges

Abstract

The paper gives an overview of research activities on reflectarrays. It revisits the original concept of reflectarray and describes how its realization evolved over the last three decades. Fixed-beam and electronically steered varieties of this antenna are considered. Special considerations are devoted to a slot-coupled double-sided microstrip interconnect for use in reflectarrays and transmitarrays.