Summary
International Symposium on Antennas and Propagation
2006
Session Number:3POS
Session:
Number:3POS-6
Calculation Approach of Effective Permittivity at the Interface of Dielectric Media in FDTD
Kyeong-Sik Min, Manh-Dat Vu,
pp.1-4
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
The solutions of effective permittivities at the dielectric interface in the Yee’s FDTD algorithm are theoretically investigated by using the boundary conditions. At the interface of two dielectric media, the specific values of these effective permittivities must be determined in order to express the proper solutions from one region into the next with the high accuracy in the FDTD analysis. In electric properties across the discontinuous distribution of two dielectric media, the effective permittivities are chosen to preserve the relations between the field components on adjacent sides of the boundaries. The results of numerical analysis in examples have verified the reasonable agreement between theoretical results and numerical experiments.