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An improved analysis of one-dimensional PBG structure using the ADI-FDTD method

✍ Scribed by Wei Tang; Pei-Nan Jiao; Le-Wei Li; Qing-Liang Li; Zhen-Sen Wu

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
116 KB
Volume
38
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

In this paper, an improved finite‐difference time‐domain (FDTD) algorithm is proposed in order to eliminate the restraint by the Courant–Friedrich–Levy condition. The new algorithm is developed based on an alternating‐direction implicit (ADI) approach. In this method, the conventional time step is divided into two time sub‐steps and each of their difference errors can be remedied. It thus has a high efficiency in the case when a long time is spent to reach a stable status, and this situation usually appears in periodical structures such as PBG structures. A numerical example of one‐dimensional (1D) PBG materials is considered to demonstrate the availability and efficiency of this scheme. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 38: 348–352, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11057

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