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Efficient analysis of resonator by the unconditionally stable three-dimensional iterative ADI-FDTD method

✍ Scribed by Z. B. Ye; L. Du; P. L. Rui

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
285 KB
Volume
49
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

In this article, the iterative alternating‐direction‐implicit finite‐difference time‐domain (ADI‐FDTD) method is used to simulate the resonator in electromagnetic field. This method is exactly the same as the original Crank–Nicolson (CN) method, while recognizing the ADI‐FDTD method as a special case of a more generalized iterative approach to solve the CN‐FDTD method, which can reduce the splitting error of the ADI‐FDTD method. Numerical results demonstrate that this 3D iterative ADI‐FDTD method can improve the accuracy of the ADI‐FDTD method by using the time step size greatly exceeding the Courant–Friedrich–Levy (CFL) limit within several iterations. As a result, much time is saved compared with CN‐FDTD method. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1473–1477, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22403

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✍ Anping Zhao 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 192 KB 👁 1 views

## Abstract In this paper, by analyzing the numerical dispersion property of an unconditionally stable three‐dimensional alternating direction implicit finite‐difference time‐domain (ADI‐FDTD) method, the influence of the time steps on the numerical dispersion error of the method is investigated. I