학술논문

An improved modified surface impedance for transverse electric problems
Document Type
Periodical
Source
IEEE Transactions on Magnetics IEEE Trans. Magn. Magnetics, IEEE Transactions on. 33(2):1267-1270 Mar, 1997
Subject
Fields, Waves and Electromagnetics
Surface impedance
Conductors
Magnetic fields
Magnetic materials
Conducting materials
Magnetic flux
Skin
Geometry
Reactive power
Permeability
Language
ISSN
0018-9464
1941-0069
Abstract
A 1D approximation is the basis of the impedance boundary condition (IBC). We review the use of the IBC conditions and present the errors which occur if those approximations are not checked. For an edge in the transverse electric case, we propose a modified surface impedance that we derive with the exact 2D analytical solution of the electromagnetic problem, and we compare it with the classical impedance and with another solution proposed in publication. We show that this impedance is not always necessary. This study can be used to model induction devices, such as a plasma torch.