Nondiagonally anisotropic PML : a generalized unsplit wide-angle absorber for the treatment of the near-grazing effect in FDTD meshes

Kantartzis, Nikolaos/ Yioultsis, Traianos/ Tsiboukis, Theodoros/ Kosmanis, Theodoros/ Τσιμπούκης, Θεόδωρος/ Κανταρτζής, Νικόλαος/ Γιούλτσης, Τραϊανός/ Κοσμάνης, Θεόδωρος

Institution and School/Department of submitter: ΤΕΙ Θεσσαλονίκης
Keywords: FDTD μέθοδος;PMLs (Μαθηματική φυσική);PMLs (Mathematical physics);Numerical solutions (Numerical analysis);FDTD method;Currents, Electric;Ρεύματα, Ηλεκτρικά;Anisotropic crystals;Ανισοτροπικοί κρύσταλλοι;Meta materials;Δείκτης διάθλασης, Αρνητικός;Μετά-υλικά;Refractive index, Negative;Αριθμητικές λύσεις (Αριθμητική ανάλυση)
Issue Date: Jul-2000
Publisher: IEEE
Citation: Kosmanis, T,. Tsiboukis, T., Kantartzis, N., Yioultsis, T, ([χ.χ.]). A Perfectly Matched Anisotropic Layer for the Numerical Analysis of Unbounded Eddy Current Problems. IEEE TRANSACTIONS ON MAGNETICS 36. Διαθέσιμο σε: (Ανακτήθηκε 2 Ιουλίου 2015)
Journal: IEEE Transactions on Magnetics, vol. 36, no. 4
Abstract: A new generalization of the PML with wide-angle absorption is presented, for the efficient truncation of FDTD lattices. The proposed unsplit-field layer uses a nondiagonal symmetric tensor anisotropy and via an appropriate parameter selection achieves notable attenuation rates in the case of near-grazing angles. Hence, it can be placed much closer to large structures. Improved accuracy and lower dispersion errors are attained via higher-order FDTD schemes with regular and non-Cartesian lattices constructed by hexagonal or tetradecahedral cells. Finally, Ramahi ABC's are invoked for the absorber's termination. Numerical results, addressing wave attenuation at grazing incidence, prove the efficiency of the proposed PML Nondiagonally anisotropic PML: A generalized unsplit wide-angle absorber for the treatment of the near-grazing effect in FDTD meshes (PDF Download Available). Available from: [accessed Jul 2, 2015].
Description: Δημοσιεύσεις μελών--ΣΤΕΦ--Τμήμα Οχημάτων, 2000
ISSN: 0018-9464
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Appears in Collections:Δημοσιεύσεις σε Περιοδικά

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