A hybrid finite-element-method/method-of-moments (FEM/MoM) approach is applied to the analysis of a gapped power-bus structure on a printed circuit board. FEM is used to model the details of the structure. MoM is used to provide a radiation boundary condition to terminate the FEM mesh. Numerical results exhibit significant errors when the FEM/MoM boundary is chosen to coincide with the physical boundary of the board. These errors are due to the inability of hybrid elements on the boundary to enforce the correct boundary condition at a gap edge in a strong sense. A much better alternative is to extend the MoM boundary above the surface of the board.
Y. Ji and T. H. Hubing, "On the Modeling of a Gapped Power-Bus Structure using a Hybrid FEM/MoM Approach," IEEE Transactions on Electromagnetic Compatibility, Institute of Electrical and Electronics Engineers (IEEE), Jan 2002.
The definitive version is available at https://doi.org/10.1109/TEMC.2002.804775
Electrical and Computer Engineering
Keywords and Phrases
FEM Mesh; FEM/MoM Boundary; MoM Boundary; PCB Analysis; Boundary Integral Equations; Finite Element Analysis; Finite Element Boundary Element; Finite Element Boundary Integral; Finite-Element-Method; Gapped Power-Bus Structure Modeling; Hybrid FEM/MoM Approach; Method of Moments; Method-Of-Moments; Printed Circuit Board; Printed Circuit Testing; Radiation Boundary Condition; Surface Integral Equation
International Standard Serial Number (ISSN)
Article - Journal
© 2002 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
01 Jan 2002