Combined FVTD/PSTD Schemes with Enhanced Spectral Accuracy for the Design of Large-Scale EMC Applications

A generalized conformal time-domain method with adjustable spectral accuracy is introduced in this paper for the consistent analysis of large-scale electromagnetic compatibility problems. The novel 3-D hybrid schemes blend a stencil-optimized finite-volume time-domain and a multimodal Fourier-Chebys...

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Main Authors: N. V. Kantartzis, A. I. Dimitriadis, T. D. Tsiboukis
Format: Article
Language:English
Published: Advanced Electromagnetics 2012-10-01
Series:Advanced Electromagnetics
Subjects:
Online Access:https://aemjournal.org/index.php/AEM/article/view/46
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author N. V. Kantartzis
A. I. Dimitriadis
T. D. Tsiboukis
author_facet N. V. Kantartzis
A. I. Dimitriadis
T. D. Tsiboukis
author_sort N. V. Kantartzis
collection DOAJ
description A generalized conformal time-domain method with adjustable spectral accuracy is introduced in this paper for the consistent analysis of large-scale electromagnetic compatibility problems. The novel 3-D hybrid schemes blend a stencil-optimized finite-volume time-domain and a multimodal Fourier-Chebyshev pseudo-spectral time-domain algorithm that split the overall space into smaller and flexible areas. A key asset is that both techniques are updated independently and interconnected by robust boundary conditions. Also, combining a family of spatial derivative approximators with controllable precision in general curvilinear coordinates, the proposed method launches a conformal field flux formulation to derive electromagnetic quantities in regions with fine details. For advanced grid reliability at dissimilar media interfaces, dispersion-reduced adaptive operators, which assign the proper weights to each spatial increment, are developed. So, the resulting discretization yields highly rigorous and computationally affordable simulations, devoid of lattice errors. Numerical results, addressing detailed comparisons of various realistic applications with reference or measurement data verify our methodology and reveal its significant applicability.
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spelling doaj.art-237015346be24b63a1516c65fe55911f2022-12-21T21:48:47ZengAdvanced ElectromagneticsAdvanced Electromagnetics2119-02752012-10-011310.7716/aem.v1i3.4646Combined FVTD/PSTD Schemes with Enhanced Spectral Accuracy for the Design of Large-Scale EMC ApplicationsN. V. Kantartzis0A. I. Dimitriadis1T. D. Tsiboukis2Dept. of Electrical and Computer Engineering, Aristotle University of Thessaloniki, GreeceDept. of Electrical and Computer Engineering, Aristotle University of Thessaloniki, GreeceDept. of Electrical and Computer Engineering, Aristotle University of Thessaloniki, GreeceA generalized conformal time-domain method with adjustable spectral accuracy is introduced in this paper for the consistent analysis of large-scale electromagnetic compatibility problems. The novel 3-D hybrid schemes blend a stencil-optimized finite-volume time-domain and a multimodal Fourier-Chebyshev pseudo-spectral time-domain algorithm that split the overall space into smaller and flexible areas. A key asset is that both techniques are updated independently and interconnected by robust boundary conditions. Also, combining a family of spatial derivative approximators with controllable precision in general curvilinear coordinates, the proposed method launches a conformal field flux formulation to derive electromagnetic quantities in regions with fine details. For advanced grid reliability at dissimilar media interfaces, dispersion-reduced adaptive operators, which assign the proper weights to each spatial increment, are developed. So, the resulting discretization yields highly rigorous and computationally affordable simulations, devoid of lattice errors. Numerical results, addressing detailed comparisons of various realistic applications with reference or measurement data verify our methodology and reveal its significant applicability.https://aemjournal.org/index.php/AEM/article/view/46Computational electromagneticsElectromagnetic compatibilityEMCFVTDPSTDspectral accuracy
spellingShingle N. V. Kantartzis
A. I. Dimitriadis
T. D. Tsiboukis
Combined FVTD/PSTD Schemes with Enhanced Spectral Accuracy for the Design of Large-Scale EMC Applications
Advanced Electromagnetics
Computational electromagnetics
Electromagnetic compatibility
EMC
FVTD
PSTD
spectral accuracy
title Combined FVTD/PSTD Schemes with Enhanced Spectral Accuracy for the Design of Large-Scale EMC Applications
title_full Combined FVTD/PSTD Schemes with Enhanced Spectral Accuracy for the Design of Large-Scale EMC Applications
title_fullStr Combined FVTD/PSTD Schemes with Enhanced Spectral Accuracy for the Design of Large-Scale EMC Applications
title_full_unstemmed Combined FVTD/PSTD Schemes with Enhanced Spectral Accuracy for the Design of Large-Scale EMC Applications
title_short Combined FVTD/PSTD Schemes with Enhanced Spectral Accuracy for the Design of Large-Scale EMC Applications
title_sort combined fvtd pstd schemes with enhanced spectral accuracy for the design of large scale emc applications
topic Computational electromagnetics
Electromagnetic compatibility
EMC
FVTD
PSTD
spectral accuracy
url https://aemjournal.org/index.php/AEM/article/view/46
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