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Transparent boundary condition for the calculation of eigenmodes in transversely infinite waveguides

Patrushev, Mikhail ; Ackermann, Wolfgang ; Weiland, Thomas (2021):
Transparent boundary condition for the calculation of eigenmodes in transversely infinite waveguides. (Publisher's Version)
In: Advances in Radio Science, 18, pp. 7-16. Copernicus, ISSN 1684-9965, e-ISSN 1684-9973,
DOI: 10.26083/tuprints-00019371,
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Item Type: Article
Origin: Secondary publication via sponsored Golden Open Access
Status: Publisher's Version
Title: Transparent boundary condition for the calculation of eigenmodes in transversely infinite waveguides
Language: English
Abstract:

Waveguides play one of the key figures in today’s electronics and optics for signal transmission. Corresponding simulations of electromagnetic wave transportation along these waveguides are accomplished by discretization methods such as the Finite Integration Technique (FIT) or the Finite Element Method (FEM). For longitudinally homogeneous and transversely unbounded waveguides these simulations can be approximated by closed boundaries. However, this distorts the original physical model and unnecessarily increases the size of the computational domain size. In this article we present a boundary condition for transversely open waveguides based on the Kirchhoff integral which has been implemented within the framework of FIT. The presented solution is compared with selected conventional methods in terms of computational effort and memory consumption.

Journal or Publication Title: Advances in Radio Science
Journal volume: 18
Publisher: Copernicus
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Accelerator Science and Electromagnetic Fields
Date Deposited: 26 Aug 2021 12:07
Last Modified: 26 Aug 2021 12:07
DOI: 10.26083/tuprints-00019371
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-193710
Additional Information:

The supplement related to this article is available online at: https://doi.org/10.5194/ars-18-7-2020-supplement.

URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/19371
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