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A well-conditioned time domain EFIE for densely discretized low frequency problems

Yves Beghein, Kristof Cools and Francesco P Andriulli (2015) PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA) . p.962-965
abstract
The time domain electric field integral equation (TD-EFIE) models transient scattering by perfect electric conductors. Upon discretization, this equation yields an ill-conditioned system matrix when the time step is large (low frequency breakdown), or the mesh is dense (dense discretization breakdown). Furthermore, its solution suffers from spurious static loop currents (DC instability). The quasi-Helmholtz projected TD-EFIE (qHP-TDEFIE) is an alternative formulation of the TD-EFIE which is immune to both low frequency breakdown and DC instability. In this contribution, a multiplicative Calderon preconditioner is constructed for the qHP-TDEFIE, which renders it immune to dense discretization breakdown. This ensures that transient electromagnetic scattering problems can be solved efficiently and accurately, even for slowly varying fields in the presence of small geometrical features.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (proceedingsPaper)
publication status
published
subject
keyword
SCATTERING, SURFACES
in
PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA)
issue title
PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA)
pages
962 - 965
publisher
IEEE
conference name
17th International Conference on Electromagnetics in Advanced Applications (ICEAA) / 5th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (IEEE-APWC)
conference location
Torino, Italy
conference start
2015-09-07
conference end
2015-09-11
Web of Science id
000378428800183
ISBN
978-1-4799-7806-9
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
7047087
handle
http://hdl.handle.net/1854/LU-7047087
date created
2016-01-22 09:23:20
date last changed
2016-12-19 15:37:20
@inproceedings{7047087,
  abstract     = {The time domain electric field integral equation (TD-EFIE) models transient scattering by perfect electric conductors. Upon discretization, this equation yields an ill-conditioned system matrix when the time step is large (low frequency breakdown), or the mesh is dense (dense discretization breakdown). Furthermore, its solution suffers from spurious static loop currents (DC instability). The quasi-Helmholtz projected TD-EFIE (qHP-TDEFIE) is an alternative formulation of the TD-EFIE which is immune to both low frequency breakdown and DC instability. In this contribution, a multiplicative Calderon preconditioner is constructed for the qHP-TDEFIE, which renders it immune to dense discretization breakdown. This ensures that transient electromagnetic scattering problems can be solved efficiently and accurately, even for slowly varying fields in the presence of small geometrical features.},
  author       = {Beghein, Yves and Cools, Kristof and Andriulli, Francesco P},
  booktitle    = {PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA) },
  isbn         = {978-1-4799-7806-9},
  keyword      = {SCATTERING,SURFACES},
  language     = {eng},
  location     = {Torino, Italy},
  pages        = {962--965},
  publisher    = {IEEE},
  title        = {A well-conditioned time domain EFIE for densely discretized low frequency problems},
  year         = {2015},
}

Chicago
Beghein, Yves, Kristof Cools, and Francesco P Andriulli. 2015. “A Well-conditioned Time Domain EFIE for Densely Discretized Low Frequency Problems.” In PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA) , 962–965. IEEE.
APA
Beghein, Y., Cools, K., & Andriulli, F. P. (2015). A well-conditioned time domain EFIE for densely discretized low frequency problems. PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA) (pp. 962–965). Presented at the 17th International Conference on Electromagnetics in Advanced Applications (ICEAA) / 5th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (IEEE-APWC) , IEEE.
Vancouver
1.
Beghein Y, Cools K, Andriulli FP. A well-conditioned time domain EFIE for densely discretized low frequency problems. PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA) . IEEE; 2015. p. 962–5.
MLA
Beghein, Yves, Kristof Cools, and Francesco P Andriulli. “A Well-conditioned Time Domain EFIE for Densely Discretized Low Frequency Problems.” PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA) . IEEE, 2015. 962–965. Print.