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A hybrid coordinate scheme for enhancing the finite-difference time-domain method

✍ Scribed by Baixin Zhou; Sicong Wang

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
123 KB
Volume
30
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

In this paper, we present a hybrid coordinate FDTD scheme, in which we insert a local conformal coordinate system which conforms with the scatterers in a Cartesian coordinate system, when there exists a nonrectangular scatterer in the Cartesian coordinate system. We propose a new interpolation scheme in the overlap region to achieve low reflection from the interface between the built‐in and Cartesian regions. The numerical experiment demonstrates that this scheme has a significant improvement in the staircasing approximation. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 114–116, 2001.

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