Numerical investigation of quasi-static magnetic cloak performance in time-varying magnetic field

Adam Steckiewicz , Agnieszka Choroszucho

Abstract

Optical devices for manipulating electromagnetic and scalar fields are in a great interest nowadays. The magnetic metamaterials were recently expanded from static and high frequency electromagnetic fields to quasi-static magnetic fields. In this paper the bilayer structure for cloaking objects in time-varying, non-harmonic magnetic fields was investigated numerically. The cylindrical ferromagnetic object was surrounded by a broadband, anisotropic metamaterial. The proposed structure was sufficient to cloak the object placed in a dielectric background with externally excited magnetic impulse. The near-field distortion and impact of the layers thickness on cloaking efficiency was investigated. We showed a possibility of cloaking objects in transient magnetic fields using thin structures consisting of paramagnetic hybrid composite and conductive layer.
Author Adam Steckiewicz (FEE / DTEM)
Adam Steckiewicz,,
- Department of Theoretical Electrotechnics and Metrology
, Agnieszka Choroszucho (FEE / DTEM)
Agnieszka Choroszucho,,
- Department of Theoretical Electrotechnics and Metrology
Journal seriesRomanian Journal of Physics, [Romanian Journal in Physics], ISSN 1221-146X, (N/A 70 pkt)
Issue year2019
Vol64
No9-10
Pages1-11
Publication size in sheets0.5
Keywords in Englishquasi-static magnetic metamaterials, electromagnetic cloaking, nearfield analysis, transient fields
ASJC Classification3100 General Physics and Astronomy
URL http://www.nipne.ro/rjp/2019_64_9-10/RomJPhys.64.606.pdf
Internal identifierROC 19-20
Languageen angielski
LicenseJournal (articles only); published final; Other open licence; with publication
Score (nominal)70
Score sourcejournalList
ScoreMinisterial score = 70.0, 12-02-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.807; WoS Impact Factor: 2018 = 1.46 (2) - 2018=1.041 (5)
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