Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Alexandre Dely"'
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 2, Pp 379-388 (2024)
In this work, we introduce new integral formulations based on the convolution quadrature method for the time-domain modeling of perfectly electrically conducting scatterers that overcome some of the most critical issues of the standard schemes based
Externí odkaz:
https://doaj.org/article/4b9dcbcfd3854d43904d94bfd2ce9672
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 1143-1174 (2021)
Integral equation formulations are a competitive strategy in computational electromagnetics but, lamentably, are often plagued by ill-conditioning and by related numerical instabilities that can jeopardize their effectiveness in several real case sce
Externí odkaz:
https://doaj.org/article/83226bcfc83b4455886b16941b1c6608
Autor:
Davide Consoli, Clement Henry, Alexandre Dely, Lyes Rahmouni, John Erik Ortiz Guzman, Tiffany L. Chhim, Simon B. Adrian, Adrien Merlini, Francesco P. Andriulli
This work presents a fast direct solver strategy for electromagnetic integral equations in the high-frequency regime. The new scheme relies on a suitably preconditioned combined field formulation and results in a single skeleton form plus identity eq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6e541e5d92cc70e78115fc7c4eb5253
http://arxiv.org/abs/2203.13283
http://arxiv.org/abs/2203.13283
Publikováno v:
Advances in Mathematical Methods for Electromagnetics ISBN: 9781785613845
Advances in Mathematical Methods for Electromagnetics
Advances in Mathematical Methods for Electromagnetics, Institution of Engineering and Technology, pp.381-415, 2020, ⟨10.1049/SBEW528E_ch16⟩
Advances in Mathematical Methods for Electromagnetics
Advances in Mathematical Methods for Electromagnetics, Institution of Engineering and Technology, pp.381-415, 2020, ⟨10.1049/SBEW528E_ch16⟩
International audience; We have identified the sources of the different problems plaguing the EFIE at low frequencies in both the frequency and the TD, as well as their traditional cures. Despite their apparent effectiveness, these techniques have be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e5fef3d9a651741e4829fb726f157e0
https://doi.org/10.1049/sbew528e_ch16
https://doi.org/10.1049/sbew528e_ch16
Publikováno v:
2019 International Conference on Electromagnetics in Advanced Applications (ICEAA)
2019 International Conference on Electromagnetics in Advanced Applications (ICEAA), Sep 2019, Granada, Spain. pp.1338-1341, ⟨10.1109/ICEAA.2019.8879366⟩
2019 International Conference on Electromagnetics in Advanced Applications (ICEAA), Sep 2019, Granada, Spain. pp.1338-1341, ⟨10.1109/ICEAA.2019.8879366⟩
Fast and accurate resolution of electromagnetic problems via the boundary element method (BEM) is oftentimes challenged by conditioning issues occurring in three distinct regimes: (i) when the frequency decreases and the discretization density remain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dab77e1449bf08ae17e6e2912f2cdda
http://arxiv.org/abs/2004.09798
http://arxiv.org/abs/2004.09798
Publikováno v:
IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation, 68(2)
IEEE Transactions on Antennas and Propagation, 68(2)
The Time Domain-Electric Field Integral Equation (TD-EFIE) and its differentiated version are widely used to simulate the transient scattering of a time dependent electromagnetic field by a Perfect Electrical Conductor (PEC). The time discretization
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fce2fcc84de8153861361274cbd9492
https://doi.org/10.1109/tap.2019.2943443
https://doi.org/10.1109/tap.2019.2943443
Publikováno v:
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
We introduce a fully conforming Impedance Boundary Condition - Electric Field Integral Equation (IBC-EFIE) that is shown to be stable both at low frequency and for dense meshes. In this work, the classical IBC is replaced by a conforming one that tak
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba7b81903934190378d5d8fa2f6a8cc5
https://doi.org/10.1109/apusncursinrsm.2018.8608300
https://doi.org/10.1109/apusncursinrsm.2018.8608300
The convolution quadrature discretized Time Domain-Electric Field Integral Equation (TD-EFIE) suffers from: (i) an ill-conditioning of the system matrix at large time steps (low frequency) and (ii) spurious static currents that slowly grow or remain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df958c0d5d86db2ddd2b798bea4b0e32
http://hdl.handle.net/11583/2726905
http://hdl.handle.net/11583/2726905
Publikováno v:
2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
We present a new formulation for the Impedance Boundary Condition — Electric Field Integral Equation (IBC-EFIE) which requires a number of iterations to be solved that is bounded at low frequency and with dense meshes. We use a multiplicative preco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c059c892114b3eac849a440ea9a3c8de
https://doi.org/10.1109/apusncursinrsm.2017.8072400
https://doi.org/10.1109/apusncursinrsm.2017.8072400
Publikováno v:
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)
This work focuses on the preconditioning and DC stabilization of the time domain electric field integral equation discretized in time with the convolution quadrature method. The standard formulation of the equation suffers from severe ill-conditionin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb89f5fbec4a3ed11c86d94d20fa94e8