An Extended FDTD Scheme for the Wave Equation: Application to Multiscale Electromagnetic Simulation

✍ Scribed by Jean-Luc Vay

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 275 KB
• Volume: 167
• Category: Article
• ISSN: 0021-9991
• DOI: 10.1006/jcph.2000.6659

✦ Synopsis

An algorithm for the application of the mesh refinement technique to finitedifference calculation of the wave equation is presented via the introduction of a new "extended" FDTD scheme. This scheme can be viewed as an extension of the Yee scheme using a new set of variables relating to the direction of propagation of the waves along an axis. Because of this additional information, this scheme allows a more natural implementation of the mesh refinement technique. The extended scheme is presented for both a one-dimensional and a multidimensional system. The mesh refinement algorithm is given in one dimension, and the performances are compared to other proposed schemes.