Single layer dual-band reflectarray antenna with two independent radiation patterns

This paper present a design for X/Ku dual-band reflectarray antennas with single layer which has two independent radiation patterns for X and Ku bands. In the design, a novel dual resonance structure has been used as the unit cell for both X and Ku band to achieve dual-band performance with a new approach. A 10×10 center-fed reflectarray operating at 9 GHz and 13.5 GHz with scattering angles of 12° and -30° respectively, is designed and the simulated results are presented to validate the approach.