Multi-layered arrays of conducting strips: Switchable photonic band gap structures

A numerical analysis of reflecting and transmitting properties of multi-lay ered structures composed of doubly periodic arrays of metallic strips is pr esented in this paper. Array elements have been selected having the shape o f the capital letters C, S and Omega. The metallic strips of arrays are pla ced on a thin dielectric substrate. These strips may include a concentrated impedance loading. The interferences in the multilayered array systems, du e to multiple reflections of waves between the layers, combined with the re sonance properties of single layers lead the structure to acquire typical p roperties of the photonic band gap (PBG) crystals.