Advances in Time-Domain Computational Electromagnetics

Advances in Time-Domain Computational Electromagnetics

Beyond Conventional Finite Difference Methods

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The finite-difference time-domain (FDTD) and finite-element time-domain (FETD) algorithms are popular for the simulation of electromagnetic fields. This popularity is due partially to their unparalleled computational efficiency and versatility. This book describes several approaches to improve their accuracy for large-scale problems and their efficiency for problems with disparate size geometries. Two novel schemes are proposed to reduce the grid dispersion error in FDTD. The first one is based on the minimization of the dispersion error for arbitrary propagation angles, while the second one i...