Application of cellulose paper with controlled electromagnetic characteristics as an interface in microwave photonic crystal

Cellulose paper with controlled electromagnetic characteristics has been used as an interface for microwave photonic crystal. The change in the interface structure, as the introduction of an air gap, at certain values of the cellulose paper layer thickness and the mass fraction of distilled water leads to low frequency shift of the Tamm resonance, while the changes in the resonance amplitudes in the first forbidden band are monotonic, and in the second – non-monotonic.