Preserving Causality in Time Domain Integral Equation-Based Methods

Fabrizio Loreto, Daniele Romano, Giulio Antonini, Martin Stumpf, Ioan E. Lager, Guy A.E. Vandenbosch

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

The critical relevance of ensuring the excitation's causality in electromagnetic (EM) simulations is exploited by the computation of strictly causal time domain interaction integrals as they occur in the partial element equivalent circuit (PEEC) method. Under the hypothesis of thin, almost zero thickness objects, the presented formulas represent analytical impulse responses and, as such, are used within convolutions in the framework of the time domain PEEC solver. The proposed approach is compared with other standard approaches and clearly behaves better than frequency-domain methods in accurately catching the propagation delay and, thus, preserving the causality. Further, improved stability is observed compared to marching-on-in-time methods..
Original languageEnglish
Title of host publicationProceedings of the 51st European Microwave Conference
PublisherIEEE
Pages474-477
Number of pages4
ISBN (Electronic)978-2-87487-063-7
ISBN (Print)978-1-6654-4721-8
DOIs
Publication statusPublished - 2022
Event2021 51st European Microwave Conference (EuMC) - London, United Kingdom
Duration: 4 Apr 20226 Apr 2022

Conference

Conference2021 51st European Microwave Conference (EuMC)
Abbreviated titleEuMC 2021
Country/TerritoryUnited Kingdom
CityLondon
Period4/04/226/04/22

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Causality
  • time domain integral equation methods
  • partial element equivalent circuit (PEEC) method

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