Simplified Method of Measuring Magnetic Permeability Temperature Profile for RF Device Applications

Atsushi Kuramoto; Takanobu Aoyama; Tomohiko Kanie; Yuichi Noro; Takashi Takeo

doi:10.4028/www.scientific.net/AST.67.118

Paper Titles

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Effects of the Co-Presence of Conflicting Magnetic Anisotropy in Ba Ferrite Particles
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In Situ Measurement of Phase Transition of Layered Perovskite BaLn₂Mn₂O₇
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Simplified Method of Measuring Magnetic Permeability Temperature Profile for RF Device Applications
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NTC Ceramics: Past, Present and Future
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Electrical Properties of Nb-Doped and Nb-Mn-Codoped BaTiO₃-(Bi_0.5Na_0.5)TiO₃ Lead-Free PTCR Ceramics
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Spin Flexoelectricity and New Aspects of Micromagnetism
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 67Simplified Method of Measuring Magnetic...

Simplified Method of Measuring Magnetic Permeability Temperature Profile for RF Device Applications

Abstract:

Ferrite is popular as a core material for RF transformers. Since transmission characteristics of RF transformers are affected by the core’s permeability, which has a large temperature dependence, the development of a method for measuring the core permeability temperature profile is important. In this study, a temperature profile measurement of ferrite core permeability has been investigated using a microstrip line method which has the advantage of the circuit being compact in size and therefore suitable for measuring temperature profiles. Based on the results measured with a sample ferrite core, the temperature dependence of RF transformer performance (isolation) is also discussed. Furthermore, basic results of experiments to compensate for the degradation in isolation is presented.

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Periodical:

Advances in Science and Technology (Volume 67)

Pages:

118-123

DOI:

https://doi.org/10.4028/www.scientific.net/AST.67.118

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Online since:

October 2010

Authors:

Atsushi Kuramoto, Takanobu Aoyama, Tomohiko Kanie, Yuichi Noro, Takashi Takeo

Keywords:

Ferrite Core, Isolation, Permeability, RF Transformer, Temperature Profile

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References

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DOI: 10.1587/transele.e92.c.532

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