Analysis of fast transient electromagnetic fields: a frequency dependent 2-D procedure

Author

Celozzi, S. ; Feliziani, M.

Author_Institution

Dept. of Electr. Eng., Rome Univ., Italy

Volume

28

Issue

2

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

1146

Lastpage

1149

Abstract

An automatic procedure for the analysis of 2-D fast transient electromagnetic fields is presented. The fields are analyzed in the frequency domain by means of a node-based finite-element-method (FEM) procedure and the transients are derived by the application of Fourier transforms. The FEM mesh is generated through an algorithm which selects the element size as a function of the wavelength. The conductive regions are automatically removed from the FEM region when the value of the penetration depth is very small, and impedance boundary conditions or perfect electric conductor approximations are imposed. Open boundary conditions are applied at a distance varying with the frequency where the mesh is truncated. The FEM implementation of the proposed procedure is discussed. Numerical results demonstrate the validity of the method

Keywords

Fourier transforms; electromagnetic fields; finite element analysis; frequency-domain analysis; transients; FEM mesh; Fourier transforms; element size; fast transient electromagnetic fields; frequency dependent 2D analysis; frequency domain; impedance boundary conditions; node-based finite-element-method; penetration depth; perfect electric conductor approximations; Boundary conditions; Electromagnetic analysis; Electromagnetic fields; Electromagnetic transients; Finite element methods; Fourier transforms; Frequency domain analysis; Impedance; Mesh generation; Transient analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.123887

Filename

123887