Mixed-dimensional finite-element models of electromagnetic coupling and shielding

Author

Brauer, John R. ; Brown, Brian S.

Author_Institution

MacNeal-Schwendler Corp., Milwaukee, MI, USA

Volume

35

Issue

2

fYear

1993

fDate

5/1/1993 12:00:00 AM

Firstpage

235

Lastpage

241

Abstract

Finite elements of dimensions zero, one, two, and three are used to model electromagnetic coupling and shielding. Elements of dimension zero represent circuit elements, while those of dimension one can represent wires. In addition to ordinary two- and three-dimensional (2- and 3-D) finite elements, asymptotic finite elements are discussed for modeling fields extending to infinity. The models with finite elements of mixed dimension are used to compute capacitance and inductance matrices and their related coupled voltages and currents. A mixed-dimensional finite-element model of an electromagnetic shielding enclosure is constructed, and its computed dynamic leakage fields are shown to agree with measurement.

Keywords

electromagnetic compatibility; electromagnetic interference; finite element analysis; shielding; 1D finite element; 2D finite elements; 3D finite elements; EM compatibility; EM interference; EMC; EMI; FEA; OD finite elements; asymptotic finite elements; capacitance matrices; circuit elements; currents; dynamic leakage fields; electromagnetic coupling; electromagnetic shielding enclosure; inductance matrices; mixed-dimensional finite-element model; voltages; wires; Capacitance; Circuits; Electromagnetic coupling; Electromagnetic modeling; Electromagnetic shielding; Finite element methods; H infinity control; Inductance; Voltage; Wires;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.229416

Filename

229416