Enhanced formulation for polynomial-based surrogate modeling of microwave structures in frequency domain
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Fecha
2015-08
Autores
Brito-Brito, Zabdiel
Rayas-Sánchez, José E.
Chávez-Hurtado, José L.
Título de la revista
ISSN de la revista
Título del volumen
Editor
IEEE MTT-S Int. Conf. Num. EM Mutiphysics Modeling Opt. RF, Microw., Terahertz App.
Resumen
Descripción
Practical formulations for EM-based modeling of microwave structures using simple polynomial surrogate functionals are described in this paper. A new polynomial surrogate formulation is proposed and compared against a previously published formulation. Both formulations calculate the surrogate model weighting factors in closed form, yielding global optimal values in the least squares sense. These formulations are suitable for EM-based design problems with no equivalent circuital models available. Our new formulation exhibits smaller learning errors and better generalization performance than the original formulation. Both methodologies are illustrated by the EM-based modeling a SIW interconnect with microstrip transitions on a standard FR4-based substrate implemented in a 3D full-wave FEM simulator.
Palabras clave
Surrogate Modeling, Polynomial Functionals, EM-based Models, Space Mapping, High-speed Interconnects, Substrate Integrated Waveguides, Microstrip-SIW Transitions
Citación
J. E. Rayas-Sánchez, J. L. Chávez-Hurtado, and Z. Brito-Brito, “Enhanced formulation for polynomial-based surrogate modeling of microwave structures in frequency domain,” in IEEE MTT-S Int. Conf. Num. EM Mutiphysics Modeling Opt. RF, Microw., Terahertz App. (NEMO-2015), Ottawa, Canada, Aug. 2015, pp. 1-3. (DOI: 10.1109/NEMO.2015.7415094).