Research of electromagnetic characteristics of chiral metamaterial based on the thin-wire perfectly conducting elements consisting of mutually orthogonal helices

The paper considers the solution of the problem of plane linearly polarized electromagnetic waves reflection from a planar metamaterial layer consisting of thin-wire perfectly conducting two mutually orthogonal helices matrix. The dispersion model is built for considered metamaterial. The problem was solved by the partial areas method and solution was reduced to a linear algebraic equations system for the unknown reflection and transmission coefficients. The frequency selective investigated metamaterial properties were identified as a numerical analysis result. In particular, it is proved that the metastructure is a frequency selective screen for microwave radiation at some frequencies.