There is disclosed a reflect array including a dielectric substrate having a first surface and a second surface. The first surface may support an array of phase-shifting elements. The second surface may support a conductive layer. At least some of the phase-shifting elements may be dual resonance phase-shifting...http://www.google.com/patents/US8149179?utm_source=gb-gplus-sharePatent US8149179 - Low loss variable phase reflect array using dual resonance phase-shifting element
