Cosimulation of electromagnetics-circuit systems exploiting DGTD and MNA

Handle URI:
http://hdl.handle.net/10754/563574
Title:
Cosimulation of electromagnetics-circuit systems exploiting DGTD and MNA
Authors:
Li, Ping; Jiang, Lijun; Bagci, Hakan ( 0000-0003-3867-5786 )
Abstract:
A hybrid electromagnetics (EM)-circuit simulator exploiting the discontinuous Galerkin time domain (DGTD) method and the modified nodal analysis (MNA) algorithm is developed for analyzing hybrid distributive and nonlinear multiport lumped circuit systems. The computational domain is split into two subsystems. One is the EM subsystem that is analyzed by DGTD, while the other is the circuit subsystem that is solved by the MNA method. The coupling between the EM and circuit subsystems is enforced at the lumped port where related field and circuit unknowns are coupled via the use of numerical flux, port voltages, and current sources. Since the spatial operations of DGTD are localized, thanks to the use of numerical flux, coupling matrices between EM and circuit subsystems are small and are directly inverted. To handle nonlinear devices within the circuit subsystem, the standard Newton-Raphson method is applied to the nonlinear coupling matrix system. In addition, a local time-stepping scheme is applied to improve the efficiency of the hybrid solver. Numerical examples including single and multiport linear/nonlinear circuit networks are presented to validate the proposed solver. © 2014 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Computational Electromagnetics Laboratory
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Components, Packaging and Manufacturing Technology
Issue Date:
Jun-2014
DOI:
10.1109/TCPMT.2014.2316137
Type:
Article
ISSN:
21563950
Sponsors:
This work was supported in part by the Research Grants Council of Hong Kong under Grant GRF 713011 and Grant GRF 712612, in part by the National Science Foundation of China under Grant 61271158, and in part by the University Grants Council of Hong Kong under Contract AoE/P-04/08. Recommended for publication by Associate Editor E.-P. Li upon evaluation of reviewers' comments.
Appears in Collections:
Articles; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorLi, Pingen
dc.contributor.authorJiang, Lijunen
dc.contributor.authorBagci, Hakanen
dc.date.accessioned2015-08-03T11:54:47Zen
dc.date.available2015-08-03T11:54:47Zen
dc.date.issued2014-06en
dc.identifier.issn21563950en
dc.identifier.doi10.1109/TCPMT.2014.2316137en
dc.identifier.urihttp://hdl.handle.net/10754/563574en
dc.description.abstractA hybrid electromagnetics (EM)-circuit simulator exploiting the discontinuous Galerkin time domain (DGTD) method and the modified nodal analysis (MNA) algorithm is developed for analyzing hybrid distributive and nonlinear multiport lumped circuit systems. The computational domain is split into two subsystems. One is the EM subsystem that is analyzed by DGTD, while the other is the circuit subsystem that is solved by the MNA method. The coupling between the EM and circuit subsystems is enforced at the lumped port where related field and circuit unknowns are coupled via the use of numerical flux, port voltages, and current sources. Since the spatial operations of DGTD are localized, thanks to the use of numerical flux, coupling matrices between EM and circuit subsystems are small and are directly inverted. To handle nonlinear devices within the circuit subsystem, the standard Newton-Raphson method is applied to the nonlinear coupling matrix system. In addition, a local time-stepping scheme is applied to improve the efficiency of the hybrid solver. Numerical examples including single and multiport linear/nonlinear circuit networks are presented to validate the proposed solver. © 2014 IEEE.en
dc.description.sponsorshipThis work was supported in part by the Research Grants Council of Hong Kong under Grant GRF 713011 and Grant GRF 712612, in part by the National Science Foundation of China under Grant 61271158, and in part by the University Grants Council of Hong Kong under Contract AoE/P-04/08. Recommended for publication by Associate Editor E.-P. Li upon evaluation of reviewers' comments.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectDiscontinuous Galerkin time domain (DGTD) methoden
dc.subjecthybrid EM-circuit solveren
dc.subjectlocal time stepping (LTS)en
dc.subjectmodified nodal analysis (MNA)en
dc.subjectmultiport circuit networksen
dc.subjectNewton-Raphson methoden
dc.subjectnonlinear elementsen
dc.subjecttransient analysis.en
dc.titleCosimulation of electromagnetics-circuit systems exploiting DGTD and MNAen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputational Electromagnetics Laboratoryen
dc.identifier.journalIEEE Transactions on Components, Packaging and Manufacturing Technologyen
dc.contributor.institutionDepartment of Electrical and Electronic Engineering, University of Hong Kong, Hong Kongen
kaust.authorBagci, Hakanen
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