Impedance boundary conditions in a hybrid fem/mom formulation

Citation data:

IEEE Transactions on Electromagnetic Compatibility, ISSN: 0018-9375, Vol: 45, Issue: 2, Page: 198-206

Publication Year:
2003
Usage 102
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Citations 6
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Repository URL:
http://scholarsmine.mst.edu/ele_comeng_facwork/1669
DOI:
10.1109/temc.2003.810813
Author(s):
Wang, Hao; Xu, Minjia; Wang, Chen; Hubing, Todd H.
Publisher(s):
Institute of Electrical and Electronics Engineers (IEEE)
Tags:
Physics and Astronomy; Engineering; 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; 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; Electrical and Computer Engineering
article description
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 formation 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.