NDLI: Microwave and Magnetostatic Characterization of Ferrite LTCC for Tunable and Reconfigurable SiP Applications

Content Provider	IEEE Xplore Digital Library
Author	Shamim, A. Bray, J. Hojjat, N. Elasoued, R.A. Baillargeat, D.
Copyright Year	2007
Description	Author affiliation: Carleton Univ., Ottawa (Shamim, A.)
Abstract	The material property extraction techniques for an emerging commercial ferrite LTCC (low temperature co-fired ceramic) tape are presented. These properties are evaluated in the context of tunable and reconfigurable microwave components for wireless communications. Relevant parameters for microwave design, including relative permittivity $epsiv_{r},$ relative permeability $mu_{r}$ and loss tangent tandelta, are presented. Measurements performed at 9.86 GHz and 27.2 GHz yield an $epsiv_{r}$ of 13.6 and tandelta values of 0.004 and 0.001 respectively. For the first time, a completely embedded LTCC toroid transformer is utilized to extract the magnetostatic properties with greater accuracy than a solenoid transformer. These measurements reveal a saturation flux density of nearly 400 mT, a remanence of 250 mT, and a coercivity of 430 A/m. The peak relative linear permeability of the ferrite is 370. The low loss tangent and the high degree of variability of the ferrite properties with bias indicate its suitability for tunable and reconfigurable microwave SiP (system in package) applications.
Starting Page	691
Ending Page	694
File Size	1572484
Page Count	4
File Format	PDF
ISBN	1424406870
ISSN	0149645X
DOI	10.1109/MWSYM.2007.380014
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetostatics Ferrites Magnetic flux Saturation magnetization Toroidal magnetic fields Permeability Circuit faults Material properties Temperature Ceramics SiP Ferrite LTCC microwave measurements magnetic hysteresis
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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