When numerically modeling structures with imperfect conductors or conductors coated with a dielectric material, impedance boundary conditions (IBCs) can substantially reduce the amount of computation required. This paper incorporates the IBC in the finite-element method (FEM) part of a FEM/method of moments (FEM/MoM) modeling code. Properties of the new formulation are investigated and the formulation is used to model three practical electromagnetic problems. Results are compared to either measured data or other numerical results. The effect of the IBC on the condition number of hybrid FEM/MoM matrices is also discussed.
H. Wang et al., "Impedance Boundary Conditions in a Hybrid FEM/MOM Formulation," IEEE Transactions on Electromagnetic Compatibility, Institute of Electrical and Electronics Engineers (IEEE), Jan 2003.
The definitive version is available at http://dx.doi.org/10.1109/TEMC.2003.810813
Electrical and Computer Engineering
Keywords and Phrases
Asymmetric Stripline Structure; Boundary-Value Problems; Conductors (Electric); Dielectric Coated Conductors; Electromagnetic Compatibility; Electromagnetic Modeling; Electromagnetic Wave Scattering; Finite Element Analysis; Finite-Element Method; Hybrid FEM/MOM Formulation; Impedance Boundary Conditions; Imperfect Conductors; Method of Moments; Numerical Modeling; Plane Wave Scattering; Practical Electromagnetic Problems; Printed Circuit Board Power Bus Structure
International Standard Serial Number (ISSN)
Article - Journal
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