Analysis of reflection and transmission of electromagnetic waves in complex layered arrays

Reflective and transmitting properties of several layers of double-periodic arrays are studied. In the arrays, elements are conducting inclusions of v arious shapes. It is shown that in these structures all the phenomena recen tly found in dense wire grids with periodical defects (so called photonic b and-gap structures) can be observed and explained in simple terms of inter- layer and inclusion resonances. Frequency-selective (with two and more stop bands) and polarization transformation properties of these arrays are demo nstrated.