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Embedding Approach to Modeling Electromagnetic Fields in a Complex Two-Dimensional Environment

Anton Tijhuis, Ann Franchois UGent and Jean-Michel Geffrin (2018) INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION.
abstract
An approach is presented to combine the response of a two-dimensionally inhomogeneous dielectric object in a homogeneous environment with that of an empty inhomogeneous environment. This allows an efficient computation of the scattering behavior of the dielectric cylinder with the aid of the CGFFT method and a dedicated extrapolation procedure. Since a circular observation contour is adopted, an angular spectral representation can be employed for the embedding. Implementation details are discussed for the case of a closed 434 MHz microwave scanner, and the accuracy and efficiency of all steps in the numerical procedure are investigated. Guidelines are proposed for choosing computational parameters such as truncation limits and tolerances. We show that the embedding approach does not increase the CPU time with respect to the forward problem solution in a homogeneous environment, if only the fields on the observation contour are computed, and that it leads to a relatively small increase when the fields on the mesh are computed as well.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
keyword
3-DIMENSIONAL WEAK-FORM, GRADIENT-METHOD, T-MATRIX, SCATTERING, RECONSTRUCTION, FFT
journal title
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION
Int. J. Antennas Propag.
article number
3020417
pages
15 pages
publisher
Hindawi Ltd
place of publication
London
Web of Science type
Article
Web of Science id
000432804100001
ISSN
1687-5869
1687-5877
DOI
10.1155/2018/3020417
language
English
UGent publication?
yes
classification
U
id
8564489
handle
http://hdl.handle.net/1854/LU-8564489
date created
2018-06-07 09:14:02
date last changed
2018-06-07 09:14:02
@article{8564489,
  abstract     = {An approach is presented to combine the response of a two-dimensionally inhomogeneous dielectric object in a homogeneous environment with that of an empty inhomogeneous environment. This allows an efficient computation of the scattering behavior of the dielectric cylinder with the aid of the CGFFT method and a dedicated extrapolation procedure. Since a circular observation contour is adopted, an angular spectral representation can be employed for the embedding. Implementation details are discussed for the case of a closed 434 MHz microwave scanner, and the accuracy and efficiency of all steps in the numerical procedure are investigated. Guidelines are proposed for choosing computational parameters such as truncation limits and tolerances. We show that the embedding approach does not increase the CPU time with respect to the forward problem solution in a homogeneous environment, if only the fields on the observation contour are computed, and that it leads to a relatively small increase when the fields on the mesh are computed as well.},
  articleno    = {3020417},
  author       = {Tijhuis, Anton and Franchois, Ann and Geffrin, Jean-Michel},
  issn         = {1687-5869},
  journal      = {INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION},
  keyword      = {3-DIMENSIONAL WEAK-FORM,GRADIENT-METHOD,T-MATRIX,SCATTERING,RECONSTRUCTION,FFT},
  language     = {eng},
  pages        = {15},
  publisher    = {Hindawi Ltd},
  title        = {Embedding Approach to Modeling Electromagnetic Fields in a Complex Two-Dimensional Environment},
  url          = {http://dx.doi.org/10.1155/2018/3020417},
  year         = {2018},
}

Chicago
Tijhuis, Anton, Ann Franchois, and Jean-Michel Geffrin. 2018. “Embedding Approach to Modeling Electromagnetic Fields in a Complex Two-Dimensional Environment.” International Journal of Antennas and Propagation.
APA
Tijhuis, A., Franchois, A., & Geffrin, J.-M. (2018). Embedding Approach to Modeling Electromagnetic Fields in a Complex Two-Dimensional Environment. INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION.
Vancouver
1.
Tijhuis A, Franchois A, Geffrin J-M. Embedding Approach to Modeling Electromagnetic Fields in a Complex Two-Dimensional Environment. INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION. London: Hindawi Ltd; 2018;
MLA
Tijhuis, Anton, Ann Franchois, and Jean-Michel Geffrin. “Embedding Approach to Modeling Electromagnetic Fields in a Complex Two-Dimensional Environment.” INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION (2018): n. pag. Print.