A hybrid FDTD-wavelet-Galerkin technique for the numerical analysis of field singularities inside waveguides

Author

Kosmanis, Theodoros I. ; Kantartzis, Nikolaos V. ; Tsiboukis, Theodoros D.

Author_Institution

Dept. of Electr. & Comput. Eng., Aristotelian Univ. of Thessaloniki, Greece

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

902

Lastpage

906

Abstract

A novel hybrid finite difference time domain-wavelet-Galerkin (FDTD-WG) technique is presented for the accurate representation of electromagnetic field solutions in regions of fast field transitions. Its fundamental concept lies in the combination of the robust FDTD method with the wavelet-Galerkin formulation, which in its turn can efficiently treat highly varying phenomena. The computational domain is, therefore, divided into regions of smooth and fast field variations. Proper determination of these two areas leads to improved simulations and significantly reduced computational burden, turning the proposed scheme into a powerful tool. Numerical results derived from the manipulation of various waveguides, proves the validity and efficacy of the new scheme

Keywords

Galerkin method; electromagnetic fields; finite difference time-domain analysis; waveguide theory; wavelet transforms; computational burden; computational domain; fast field transitions; field singularities; hybrid FDTD-wavelet-Galerkin technique; numerical analysis; validity; waveguides; Computational modeling; Differential equations; Electromagnetic fields; Electromagnetic waveguides; Finite difference methods; Moment methods; Numerical analysis; Robustness; Time domain analysis; Turning;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.877589

Filename

877589