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Method of Moments and T-Matrix Hybrid

Losenicky, Vit LU ; Jelinek, Lukas ; Capek, Miloslav LU and Gustafsson, Mats LU orcid (2022) In IEEE Transactions on Antennas and Propagation 70(5). p.3560-3574
Abstract

Hybrid computational schemes combining the advantages of a method of moments formulation of a field integral equation and T-matrix method are developed in this article. The hybrid methods are particularly efficient when describing the interaction of electrically small complex objects and electrically large objects of canonical shapes such as spherical multilayered bodies where the T-matrix method is reduced to the Mie series making the method an interesting alternative in the design of implantable antennas or exposure evaluations. Method performance is tested on a spherical multilayer model of the human head. Along with the hybrid method, an evaluation of the transition matrix of an arbitrarily shaped object is presented and the... (More)

Hybrid computational schemes combining the advantages of a method of moments formulation of a field integral equation and T-matrix method are developed in this article. The hybrid methods are particularly efficient when describing the interaction of electrically small complex objects and electrically large objects of canonical shapes such as spherical multilayered bodies where the T-matrix method is reduced to the Mie series making the method an interesting alternative in the design of implantable antennas or exposure evaluations. Method performance is tested on a spherical multilayer model of the human head. Along with the hybrid method, an evaluation of the transition matrix of an arbitrarily shaped object is presented and the characteristic mode decomposition is performed, exhibiting fourfold numerical precision compared to conventional approaches.

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Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Antennas, eigenvalue problems, method of moments (MoM), numerical analysis, scattering, T-matrix method
in
IEEE Transactions on Antennas and Propagation
volume
70
issue
5
pages
15 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85122559026
ISSN
0018-926X
DOI
10.1109/TAP.2021.3138265
language
English
LU publication?
yes
additional info
Funding Information: This work was supported in part by the Czech Science Foundation under Project under Grant 19-06049S and in part by the Grant Agency of the Czech Technical University in Prague under Grant SGS19/168/OHK3/3T/13 Publisher Copyright: © 1963-2012 IEEE.
id
7d46f3d3-588f-4775-b839-848a5a01aedc
date added to LUP
2022-12-30 10:50:54
date last changed
2023-11-17 11:37:53
@article{7d46f3d3-588f-4775-b839-848a5a01aedc,
  abstract     = {{<p>Hybrid computational schemes combining the advantages of a method of moments formulation of a field integral equation and T-matrix method are developed in this article. The hybrid methods are particularly efficient when describing the interaction of electrically small complex objects and electrically large objects of canonical shapes such as spherical multilayered bodies where the T-matrix method is reduced to the Mie series making the method an interesting alternative in the design of implantable antennas or exposure evaluations. Method performance is tested on a spherical multilayer model of the human head. Along with the hybrid method, an evaluation of the transition matrix of an arbitrarily shaped object is presented and the characteristic mode decomposition is performed, exhibiting fourfold numerical precision compared to conventional approaches.</p>}},
  author       = {{Losenicky, Vit and Jelinek, Lukas and Capek, Miloslav and Gustafsson, Mats}},
  issn         = {{0018-926X}},
  keywords     = {{Antennas; eigenvalue problems; method of moments (MoM); numerical analysis; scattering; T-matrix method}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{5}},
  pages        = {{3560--3574}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Transactions on Antennas and Propagation}},
  title        = {{Method of Moments and T-Matrix Hybrid}},
  url          = {{http://dx.doi.org/10.1109/TAP.2021.3138265}},
  doi          = {{10.1109/TAP.2021.3138265}},
  volume       = {{70}},
  year         = {{2022}},
}