Omega-shaped resonant elements for dual-polarization and wideband reflectarray

This paper proposes new reflectarray elements for dual-polarization and wideband use. These elements provide linear phase property with the same slop characteristics for dual polarization, thereby achieving the desirable reflection phase over wide frequency range. To verify effectiveness of the proposed elements, we present an offset reflectarray designed by using them, and also confirm wideband frequency characteristics numerically and experimentally.