| Title: | An RBF-based method for computational electromagnetics with reduced numerical dispersion |
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| Authors: | ID Kolar-Požun, Andrej, Institut "Jožef Stefan" (Author)
ID Kosec, Gregor, Institut "Jožef Stefan" (Author) |
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| Files: |  URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S0045782526001398
 PDF - Presentation file, download (8,37 MB)
MD5: 8E997222AC901CD99C2535AC2DF5D6EB
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | The finite difference time domain method is one of the simplest and most popular methods in computational electromagnetics. This work considers two possible ways of generalising it to a meshless setting by employing local radial basis function interpolation. The resulting methods remain fully explicit and are convergent if properly chosen hyperviscosity terms are added to the update equations. We demonstrate that increasing the stencil size of the approximation has a desirable effect on numerical dispersion. Furthermore, our proposed methods can exhibit a decreased dispersion anisotropy compared to the finite difference time domain method. |
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| Keywords: | finite difference time domain, meshless, radial basis function, hyperviscosity, dispersion, telecommunication protocols |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 22.10.2025 |
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| Article acceptance date: | 18.02.2026 |
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| Publication date: | 25.02.2026 |
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| Publisher: | Elsevier |
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| Year of publishing: | 2026 |
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| Number of pages: | str. 1-23 |
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| Numbering: | Vol. 454, [article no.] 118865 |
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| Source: | Nizozemska |
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| PID: | 20.500.12556/DiRROS-27964  |
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| UDC: | 537 |
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| ISSN on article: | 1879-2138 |
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| DOI: | 10.1016/j.cma.2026.118865 |
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| COBISS.SI-ID: | 270264579 |
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| Copyright: | © 2026 The Author(s). |
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| Note: | Nasl. z nasl. zaslona;
Opis vira z dne 3. 3. 2026;
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| Publication date in DiRROS: | 03.03.2026 |
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| Views: | 46 |
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| Downloads: | 22 |
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| Metadata: |    |
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