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PEC condition implementation for the ADI‐FDTD method
Author(s) -
Chen Juan,
Wang Jianguo
Publication year - 2007
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22185
Subject(s) - finite difference time domain method , tridiagonal matrix , microwave , alternating direction implicit method , matrix (chemical analysis) , computer science , mathematics , finite difference method , electronic engineering , algorithm , mathematical analysis , engineering , physics , optics , materials science , telecommunications , eigenvalues and eigenvectors , quantum mechanics , composite material
The perfect‐electric‐conductor (PEC) condition implementation for the alternating‐direction‐implicit finite‐difference time‐domain (ADI‐FDTD) method is discussed in this article. By comparing different implementation strategies, it shows that the most accurate implementation method is that the PEC condition is directly incorporated within the tridiagonal matrix. Compared with the other two methods commonly used in conventional FDTD, this method is unconditionally stable and has higher accuracy. The theory proposed in this article is validated through numerical examples. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 526–530, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22185