Title: Modeling of lossy curved surfaces in 3-D FIT/FDTD techniques
Authors: Makinen, Riku M ×
De Gersem, Herbert
Weiland, Thomas
Kivikoski, Markku A #
Issue Date: Nov-2006
Publisher: Ieee-inst electrical electronics engineers inc
Series Title: IEEE Transactions on antennas and propagation vol:54 issue:11 pages:3490-3498
Abstract: A conformal first-order or Leontovic surface-impedance boundary condition (SIBC) for the modeling of lossy curved surfaces in a Cartesian grid is presented for the finite-integration technique (FIT). Equivalently, 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. The validity of the proposed model is evaluated by investigating the quality factors of rectangular, cylindrical and spherical cavity resonators. The convergence rate of the conformal SIBC model is shown to be of second order.
ISSN: 0018-926X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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