Impurity Mode in Microstrip Line Photonic Crystal in Millimeter Wave Region

概要

論文の詳細を見る
One-dimensional photonic crystals were fabricated by using a periodic microstrip line with a lattice constant of 16.3 mm. Wide band gaps around 5 GHz were observed by a network analyzer. Microstrip lines with an impurity line that disturbed the periodicity were also fabricated and a sharp transmission peak, which is due to the impurity mode, was observed in the band gap region. The measured transmission and reflection spectra were in very good accordance with those calculated by the method of moments. The Q factor of the impurity modes was strongly dependent on the number of unit cells of the periodic lines adjacent to the impurity line and also on the value of the dielectric loss of the substrate material. The spatial distribution of the electric field of the transmitting modes and the impurity modes of the electromagnetic wave were simulated using the method of moments, and localization of the impurity modes was clearly evident.
社団法人日本物理学会の論文
2003-04-15