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Broadband permeability measurement method for ferrites at any magnetization state: direct problem

Published online by Cambridge University Press:  04 April 2011

Jorge E. Lezaca ,
Patrick Quéffélec  and
Alexis Chevalier
Jorge E. Lezaca*
Affiliation:
Lab-STICC UMR 3192, European University of Brittany, University of Brest, 6 Avenue le Gorgeu, CS 93837, 29238 Brest, France.
Patrick Quéffélec
Affiliation:
Lab-STICC UMR 3192, European University of Brittany, University of Brest, 6 Avenue le Gorgeu, CS 93837, 29238 Brest, France.
Alexis Chevalier
Affiliation:
Lab-STICC UMR 3192, European University of Brittany, University of Brest, 6 Avenue le Gorgeu, CS 93837, 29238 Brest, France.
*
Corresponding author: J. Lezaca Email: [email protected]
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Abstract

A broadband permeability measurement method based on the full-wave electromagnetic (EM) analysis of a non-reciprocal transmission line is presented. The dispersion diagram for the first significant modes inside the ferrite loaded section of the line is obtained. The presence of magnetostatic modes generated by the magnetized ferrite inside the line is verified. Using a mode matching technique, the theoretical scattering parameters (S-parameters) of the transmission line are calculated. The full-wave analysis is validated with measurements of material properties in limit cases.

Keywords

Characterization of material parametersMicrowave measurements
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 3 , Special Issue 3: Special Issue on European Microwave Week 2010 , June 2011 , pp. 289 - 294
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2011

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References

REFERENCES

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