Abstract
An Improved Locally Conformal Finite-Difference Time-Domain (ILC-FDTD) method is presented in this paper, which is used to analyze the edge inclined slots penetrating adjacent broadwalls of a finite wall thickness waveguide. ILC-FDTD not only removes the instability of the original locally conformal FDTD algorithm, but also improves the computational accuracy by locally modifying magnetic field update equations and the virtual iterative electric fields according to the complexity of the slot fringe fields. The mutual coupling between two edge inclined slots can also be analyzed by ILC-FDTD effectively.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
P. Hsu, S. H. Chen, Admittance and resonant length of inclined slots in the narrow wall of a rectangular waveguide, IEEE Trans. on Antennas Propagat., AP-37(1989)1, 45–49.
Xia Kejin, Study of the inclined slots in the narrow wall of a rectangular waveguide, PhD dissertation, Tsinghua University, Beijing, Sept. 1990, (in Chinese).
K. S. Yee, Numerical solution of initial boundary value problems involving Maxwell’s equations in isotropic media, IEEE Trans. on Antennas Propagat., AP-14(1966)4, 302–306.
E. A. Kraut, J. C. Olivier, J. B. West, FDTD solution of Maxwell’s equations for an edge slot penetrating adjacent broadwalls of a finite wall thickness waveguide, IEEE Trans. on Antennas Propagat., AP-42(1994)12, 1646–1648.
A. C. Cangellaris, D. B. Wright, Analysis of the numerical error caused by the stairstepped approximation of a conducting boundary in FDTD simulations of electromagnetic phenomena, IEEE Trans. on Antennas Propagat., AP-39(1991)10, 1518–1525.
T. G. Jurgens, A. Taflove, Three-dimensional contour FDTD modeling of scattering form single and multiple bodies, IEEE Trans. on Antennas Propagat., AP-41(1993)12, 1703–1708.
S. Dey, R. Mittra, A locally conformal finite difference time domain (FDTD) algorithm for modeling three-dimensional perfectly conducting objects, IEEE Microwave Guided Wave Lett., 7(1997)9, 273–276.
Wenhua Yu, R. Mittra, A conformal FDTD algorithm modeling perfectly conducting objects with curved shaped surfaces and edges, Microwave and Optical Technology Letters, 22(2000)10, 136–138.
C. J. Railton, J. B. Schneider, An analytical and numerical analysis of several locally conformal FDTD Schemes, IEEE Trans. on Microwave Theory and Tech., MTT-47(1999)1, 56–66.
J. P. Berenger, Three dimensional perfectly matched layer for the absorption of electromagnetic waves, Journal of Computational Physics, 127(1996)2, 363–379.
Author information
Authors and Affiliations
Additional information
Supported by the National Natural Science Foundation of China(No.69931030)
About this article
Cite this article
Li, L., Zhang, Y. & Liang, C. Improved Locally Conformal Finite-Difference Time-Domain method for edge inclined slots in a finite wall thickness waveguide. J. of Electron.(China) 21, 229–235 (2004). https://doi.org/10.1007/BF02687876
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02687876