Title :
Advanced surface impedance boundary condition in EM-FDTD
Author :
Schild, Stefan ; Chavannes, Nicolas ; Kuster, Niels ; Okoniewska, Ewa ; Pasalic, Damir ; Okoniewski, Michal
Author_Institution :
Schmid & Partner Eng. AG, Zürich, Switzerland
Abstract :
This short paper introduces a novel approach to improve the accuracy of the surface impedance boundary condition (SIBC) model originally reported by Celuch. The accuracy of the SIBC algorithm is significantly improved by introducing time and/or space synchronizations but still maintains a simple time update equation. Examples demonstrate the effectiveness of the approach. In addition, a ladder element optimization algorithm is introduced to account for the finiteness of the GC-ladder.
Keywords :
computational electromagnetics; finite difference time-domain analysis; surface impedance; synchronisation; EM-FDTD; GC-ladder; SIBC algorithm; advanced surface impedance boundary condition; ladder element optimization algorithm; space synchronization; time synchronization; time update equation; Accuracy; Equations; Mathematical model; Metals; Rectangular waveguides; Surface impedance; Synchronization;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996983
