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Polarization conversion by metamaterial composed of a periodic array of metallic square helixes embedded in a dielectric layer

The problem of the plane-wave scattering from a 3-D metamaterial layer composed of metallic square helixes periodically embedded in a dielectric layer was solved by the full-wave method of integral functionals. It was shown that such a structure is able to rotate the electric-field intensity vector. The increase in the length of the helix makes it possible to achieve almost complete polarization conversion. The polarization conversion has a resonance character.