Single-layer reflectarray cell synthesis based on filter synthesis techniques

Abstract

This paper presents a method for synthesizing the equivalent circuit of a single-layer reflect array unit-cell based on filter synthesis techniques. Metallic-ring and slot-ring cells are synthesized respectively by 3rd-order band-stop and band-pass Tchebycheff filters. A phase range of 360° at 12.5 GHz is achieved with an maximum average phase error of 16° for a phase dispersion of 60°/GHz in the band of interest 10.5-14.5 GHz.