Microstrip Photonic Crystals and their Application for Measurement Parameters of Materials

The computer simulation and experimental investigation of frequency dependencies of the reflectance and the transmittance of photonic crystals based on the microstrip structures in the frequency band 0-20 GHz have been performed. The investigations were performed for the photonic crystal with irregularity introduced as changed geometry size of the stripline conductor or changed substrate permittivity of one of the sequence microstrip sections. Good quantitative fit between the calculations and experimental results have been obtained. The possibility of application of open microwave transmission lines - microstrip photonic crystals - for measurement parameters of a material which acts as irregularity in the photonic crystal has been demonstrated.