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On the feasibility of using ferromagnetic materials for thin EM absorbers

Ramprecht, J. and Sjöberg, Daniel LU (2007) International Conference on Electromagnetics in Advanced Applications (ICEAA), 2007 In Proceedings of the International Conference on Electromagnetics in Advanced Applications, 2007 p.324-327
Abstract
In this paper the magnetization of a ferro-or ferri-magnetic material has been modeled with the Landau-Lifshitz-Gilbert (LLG) equation. We show that with the aid of a static magnetic bias field the material can be switched between a Lorentz-like material with a resonance frequency and a material exhibiting a magnetic conductivity. The reflection from a magnetic material backed by a perfect electrical conductor (PEC) is then analyzed. It is found that one can achieve low reflection (around -20 dB) for a quite large bandwidth (more than two decades).
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proceedings of the International Conference on Electromagnetics in Advanced Applications, 2007
pages
4 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
International Conference on Electromagnetics in Advanced Applications (ICEAA), 2007
external identifiers
  • Scopus:47349103291
ISBN
978-1-4244-0767-5
DOI
10.1109/ICEAA.2007.4387303
language
English
LU publication?
yes
id
07021046-b32f-4498-b5a5-0f98e06ee692 (old id 1031194)
date added to LUP
2008-02-18 14:47:48
date last changed
2016-10-13 04:48:27
@misc{07021046-b32f-4498-b5a5-0f98e06ee692,
  abstract     = {In this paper the magnetization of a ferro-or ferri-magnetic material has been modeled with the Landau-Lifshitz-Gilbert (LLG) equation. We show that with the aid of a static magnetic bias field the material can be switched between a Lorentz-like material with a resonance frequency and a material exhibiting a magnetic conductivity. The reflection from a magnetic material backed by a perfect electrical conductor (PEC) is then analyzed. It is found that one can achieve low reflection (around -20 dB) for a quite large bandwidth (more than two decades).},
  author       = {Ramprecht, J. and Sjöberg, Daniel},
  isbn         = {978-1-4244-0767-5},
  language     = {eng},
  pages        = {324--327},
  publisher    = {ARRAY(0x9a83fa0)},
  series       = {Proceedings of the International Conference on Electromagnetics in Advanced Applications, 2007},
  title        = {On the feasibility of using ferromagnetic materials for thin EM absorbers},
  url          = {http://dx.doi.org/10.1109/ICEAA.2007.4387303},
  year         = {2007},
}