Microwave Photonic Crystal from Spirals

Resumo

Features of microwave propagation through a two-dimensional periodic structure of cylindrical spiral coils were studied in the frequency range from 8.5 to 12 GHz. The frequency dependence of the effective refractive index n_ef of the structure is measured. The features of measurements are noted and the structure reflectance is estimated in various regions of the frequency range under study. In the frequency range where n_ef ~ 0, a surface wave propagating around the structure is detected.