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A Generalized Transition Matrix Model Combined with Discontinuous Galerkin Method for Open Cavities,Generalized transition matrix (GTM), discontinuous Galerkin (DG), open cavity, reference surface

Hu, Yuyang ; Xiao, Gaobiao and Xiang, Shang LU (2020) In IEEE Open Journal of Antennas and Propagation 1(1). p.272-282
Abstract

A generalized transition matrix (GTM) model combined with discontinuous Galerkin (DG) method is proposed to analyze the scattering problems of open-ended cavities. A virtual reference surface is put to seal the opening of an open cavity and can separate it into an exterior region and an interior region. By mapping the scattering properties of the internal components onto the reference surface, the information interaction of the GTM model occurs on the reference surface only. With its features of nonconformal meshes at the boundary, the DG method makes the model feasible and accurate regardless of the normal continuity of the surface current at the transitional interface. The GTM model is independent of the exterior structure of the... (More)

A generalized transition matrix (GTM) model combined with discontinuous Galerkin (DG) method is proposed to analyze the scattering problems of open-ended cavities. A virtual reference surface is put to seal the opening of an open cavity and can separate it into an exterior region and an interior region. By mapping the scattering properties of the internal components onto the reference surface, the information interaction of the GTM model occurs on the reference surface only. With its features of nonconformal meshes at the boundary, the DG method makes the model feasible and accurate regardless of the normal continuity of the surface current at the transitional interface. The GTM model is independent of the exterior structure of the cavity and the external fields. The computational cost can be significantly decreased when the GTM model with the identical inner region is reused. Numerical examples demonstrate good precision and efficiency of the presented method.

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author
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organization
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type
Contribution to journal
publication status
published
subject
keywords
Discontinuous galerkin (dg), Generalized transition matrix (gtm), Open cavity, Reference surface
in
IEEE Open Journal of Antennas and Propagation
volume
1
issue
1
article number
9107239
pages
11 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85115895007
ISSN
2637-6431
DOI
10.1109/OJAP.2020.2999657
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2020 IEEE.
id
1b0c1a8f-0bcc-4dbd-954e-5a6a4ea8bad7
date added to LUP
2021-10-25 13:47:30
date last changed
2022-04-19 17:22:41
@article{1b0c1a8f-0bcc-4dbd-954e-5a6a4ea8bad7,
  abstract     = {{<p>A generalized transition matrix (GTM) model combined with discontinuous Galerkin (DG) method is proposed to analyze the scattering problems of open-ended cavities. A virtual reference surface is put to seal the opening of an open cavity and can separate it into an exterior region and an interior region. By mapping the scattering properties of the internal components onto the reference surface, the information interaction of the GTM model occurs on the reference surface only. With its features of nonconformal meshes at the boundary, the DG method makes the model feasible and accurate regardless of the normal continuity of the surface current at the transitional interface. The GTM model is independent of the exterior structure of the cavity and the external fields. The computational cost can be significantly decreased when the GTM model with the identical inner region is reused. Numerical examples demonstrate good precision and efficiency of the presented method.</p>}},
  author       = {{Hu, Yuyang and Xiao, Gaobiao and Xiang, Shang}},
  issn         = {{2637-6431}},
  keywords     = {{Discontinuous galerkin (dg); Generalized transition matrix (gtm); Open cavity; Reference surface}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{272--282}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Open Journal of Antennas and Propagation}},
  title        = {{A Generalized Transition Matrix Model Combined with Discontinuous Galerkin Method for Open Cavities,Generalized transition matrix (GTM), discontinuous Galerkin (DG), open cavity, reference surface}},
  url          = {{http://dx.doi.org/10.1109/OJAP.2020.2999657}},
  doi          = {{10.1109/OJAP.2020.2999657}},
  volume       = {{1}},
  year         = {{2020}},
}