Title :
A Conformal Surface-Impedance Boundary Condition for the Modeling of Curved Lossy Surfaces in 3-D FIT/FDTD Techniques
Author :
Makinen, R.M. ; De Gersem, H. ; Weiland, T. ; Kivikoski, M.
Author_Institution :
Institut für Theorie Elektromagnetischer Felder (TEMF), Technische Universität Darmstadt, Schlossgartenstrasse 8, D-64289 Darmstadt, Germany, http://www.temf.de; Institute of Electronics, Tampere University of Technology, P.O Box 692, FIN-33101
Abstract :
A conformal first-order surface-impedance boundary condition (SIBC) for the modeling of lossy curved surfaces in a Cartesian grid is presented for the finite-integration technique (FIT). Alternatively, the model can be derived using the contour-path formulation of the finite-difference time domain (FDTD) method. The SIBC is based on a lumped-element representation of the impedance combined with a conformal modeling scheme.
Keywords :
Boundary conditions; Conducting materials; Finite difference methods; Magnetic domains; Magnetic materials; Maxwell equations; Surface fitting; Surface impedance; Time domain analysis; Voltage;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1551746
