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Type: Journal article
Title: Field-based scattering-matrix extraction scheme for the FVTD method exploiting a flux-splitting algorithm
Author: Baumann, D.
Fumeaux, C.
Vahldieck, R.
Citation: IEEE Transactions on Microwave Theory and Techniques, 2005; 53(11):3595-3605
Publisher: IEEE-Inst Electrical Electronics Engineers Inc
Issue Date: 2005
ISSN: 0018-9480
Statement of
Dirk Baumann, Christophe Fumeaux and Rüdiger Vahldieck
Abstract: This paper introduces a novel field-based scheme for the extraction of a generalized-scattering matrix. A flux-splitting (FS) algorithm that separates the total electromagnetic field into an incident and a reflected part is used for a new definition of power waves. This flux-separation scheme, based on a plane-wave approach of the split waves, originates from finite-volume techniques. However, it can be applied locally in any numerical scheme that uses a volume discretization. To yield correct -parameters, the FS matrix needs to be adapted through introduction of modified wave velocities to match the plane-wave condition. The introduced extraction scheme is applied to the finite-volume time-domain method and compared successfully to reference solutions for TEM and non-TEM structures, both with homogeneous and inhomogeneous cross sections.
Keywords: Finite volume time domain (FVTD)
flux splitting(FS)
scattering parameters.
DOI: 10.1109/TMTT.2005.857103
Appears in Collections:Aurora harvest 5
Electrical and Electronic Engineering publications

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