Estimation of permeability tensor and dielectric permittivity of ferrites using a wave guide method under a dc magnetic field

I. Tsiachristos; E. Varouti; E. Manios; D. Stamopoulos; T. Zervos; G. Fikioris; F. Lazarakis; A. Alexandridis; M. Pissas

doi:10.1051/epjconf/20147506005

All issues

Volume 75 (2014)

EPJ Web of Conferences, 75 (2014) 06005

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 75, 2014 JEMS 2013 – Joint European Magnetic Symposia


Article Number		06005
Number of page(s)		4
Section		6. Magnetic recording, sensors and microwave devices
DOI		https://doi.org/10.1051/epjconf/20147506005
Published online		03 July 2014

EPJ Web of Conferences 75, 06005 (2014)
https://doi.org/10.1051/epjconf/20147506005

Estimation of permeability tensor and dielectric permittivity of ferrites using a wave guide method under a dc magnetic field

I. Tsiachristos¹^,2, E. Varouti², E. Manios², D. Stamopoulos², T. Zervos³, G. Fikioris¹, F. Lazarakis³, A. Alexandridis³ and M. Pissas²^a

¹ School of Electrical and Computer Engineering, NTUA, Heroon Polytechniou 9, 15780 Zografou, Greece .
² IAMPPNM, NCSR “Demokritos”, 15310, Athens, Greece.
³ IIT, NCSR “Demokritos”, 15310 Athens, Greece

^a Corresponding author: mpissas@ims.demokritos.gr

Published online: 3 July 2014

Abstract

Using a vector network analyzer equipped with a calibrated rectangular wave guide the electric permittivity and the element of the magnetic permeability tensor for Y₃Fe₅O₁₂, ZnFe₂O₄ and NiFe₂O₄ are measured. The electric permittivity can be estimated from the body resonances (d = nλ/2) if a sufficient long sample is used. The estimation of the magnetic permeability tensors’ parameters can be estimated comparing the experimental results with computer simulations using the magnetic properties of the materials as derived from the magnetic measurements.

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