On the initial condition problem of the time domain PMCHWT surface integral equation

Ismail Enes Uysal, Hakan Bagci, A. Arif Ergin, H. Arda Ulku

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Non-physical, linearly increasing and constant current components are induced in marching on-in-time solution of time domain surface integral equations when initial conditions on time derivatives of (unknown) equivalent currents are not enforced properly. This problem can be remedied by solving the time integral of the surface integral for auxiliary currents that are defined to be the time derivatives of the equivalent currents. Then the equivalent currents are obtained by numerically differentiating the auxiliary ones. In this work, this approach is applied to the marching on-in-time solution of the time domain Poggio-Miller-Chan-Harrington-Wu-Tsai surface integral equation enforced on dispersive/plasmonic scatterers. Accuracy of the proposed method is demonstrated by a numerical example.
Original languageEnglish (US)
Title of host publication2017 International Applied Computational Electromagnetics Society Symposium - Italy (ACES)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Print)9780996007832
DOIs
StatePublished - May 13 2017

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