✦ LIBER ✦

The 2.5D FDTD and Fourier PSTD methods and applications

✍ Scribed by Zibin Tang; Qing Huo Liu

Book ID: 102520025
Publisher: John Wiley and Sons
Year: 2003
Tongue: English
Weight: 185 KB
Volume: 36
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.10783

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✦ Synopsis

Abstract

In this work, 2.5‐dimensional finite‐difference time‐domain (FDTD) and pseudospectral time‐domain (PSTD) algorithms are developed for electromagnetic waves in media that are invariant in one spatial dimension. Both algorithms use Berenger's perfect matched layer (PML) as an absorbing boundary condition. The FDTD method is an extension of Yee's 3D algorithm to 2.5D. The PSTD algorithm uses the fast Fourier transform to approximate spatial derivatives, and gives a much higher accuracy than the FDTD method. Numerical results have been validated by comparing them with analytical solutions. The methods have been applied to ground‐penetrating‐radar and dielectric‐waveguide problems. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 36: 430–436, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10783

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