Microwave Photonic Crystal from Spirals
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 nef 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 nef ~ 0, a surface wave propagating around the structure is detected.
Keywordstwo-dimensional periodic structure negative refraction spiral coils photonic crystal
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