Full-wave numerical approach for the analysis of leaky modes in periodic and bandgap structures composed of two-dimensional cylindrical inclusions has been proposed. A self-contained formulation is developed that uses a fast and accurate calculation of the lattice sums, which allows us for an appropriate choice of the spectral determination for each spatial harmonic. We analyze numerically a periodic chain composed of dielectric rods. Phase and attenuation constants are calculated and compared with those obtained by Fourier series expansion method with perfectly matched layers. A very good agreement is observed in a wide frequency range, while the computation time of the proposed approach is much faster.
Jandieri, V., Baccarelli, P., Valerio, G., Ceccuzzi, S., Ponti, C., Schettini, G. (2017). Efficient and rigorous analysis of leaky modes in 2-D EBG guiding structures. In Proceedings of the 2017 19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017 (pp.444-445). Institute of Electrical and Electronics Engineers Inc. [10.1109/ICEAA.2017.8065274].
Efficient and rigorous analysis of leaky modes in 2-D EBG guiding structures
Baccarelli, P.;Ceccuzzi, S.;Ponti, C.;Schettini, G.
2017-01-01
Abstract
Full-wave numerical approach for the analysis of leaky modes in periodic and bandgap structures composed of two-dimensional cylindrical inclusions has been proposed. A self-contained formulation is developed that uses a fast and accurate calculation of the lattice sums, which allows us for an appropriate choice of the spectral determination for each spatial harmonic. We analyze numerically a periodic chain composed of dielectric rods. Phase and attenuation constants are calculated and compared with those obtained by Fourier series expansion method with perfectly matched layers. A very good agreement is observed in a wide frequency range, while the computation time of the proposed approach is much faster.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
