Top

previous chapter The Rare Earths Problem for Permanent Magnets

next chapter Iron Loss Analysis of Motors

Hint

Swipe to navigate through the chapters of this book

2019 | OriginalPaper | Chapter

High-Frequency Magnetics

Read first chapter

Author: Makoto Sonehara

Publisher: Springer Singapore

Published in: Magnetic Material for Motor Drive Systems

» Get access to the full-text

Abstract

When the magnetic material is used as the high-frequency devices such as RF inductor, the domain walls do not move; so, a soft magnetic material with an uniaxial magnetic anisotropy is often used in the case. A magnetic field is applied in the direction of the hard axis, and magnetization rotation is used in the soft magnetic material. In the soft magnetic material, not only the higher real part and the lower imaginary part of the complex permeability but also the electrical resistivity should be high. For example, when it is used for the magnetic core of an inductor, eddy current loss increases when the electric resistivity of the material is low. In addition, we also need various resources such as reducing the eddy current loss by putting a slit in the magnetic material in order to apply it in RF devices.

Please log in to get access to this content

To get access to this content you need the following product:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

über 69.000 Bücher
über 500 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Umwelt
Finance + Banking
Management + Führung
Marketing + Vertrieb
Maschinenbau + Werkstoffe
Versicherung + Risiko

Testen Sie jetzt 30 Tage kostenlos.

inform now

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

über 50.000 Bücher
über 380 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Umwelt
Maschinenbau + Werkstoffe

Testen Sie jetzt 30 Tage kostenlos.

inform now

3GPP Homepage: http://www.3gpp.org/technologies/keywords-acronyms/97-lte-advanced. Accessed 21 July 2017

Maruyama, T., et al.: Experimental study of cross-talk suppression effect by introducing magnetic thin film to spiral inductor for CSP RF-IC. The paper of Technical Meeting on Magnetics, IEE Japan, MAG-10-201, pp. 11–16 (2010)

Hidayov, O.A., et al.: 0.7–2.7 GHz wideband CMOS low-noise amplifier for LTE application. Electron. Lett. 49(23), 1433–1435 (2013) CrossRef

Gardner, D.S., et al.: Review of on-chip inductor structures with magnetic films. IEEE Trans. Magn. 45(10), 4760–4766 (2009) CrossRef

Ohta, K.: Foundation of magnetic engineering II, Kyoritsu Zensho (1990)

Munakata, M., et al.: Magnetic properties and frequency characteristics of (CoFeB) _x–(SiO _1.9) _1−x and CoFeB films for RF application. Trans. Magn. Soc. Japan 2(5), 388–393 (2002) CrossRef

Ikeda, S., et al.: A design chart of effective permeability of magnetic film with parallel slit structure. Technical Report of IEE of Japan, MAG-02-111, pp. 25–29 (2002)

Tsai, C.S., et al.: Wideband electronically tunable microwave bandstop filters using iron film-gallium arsenide waveguide structure. IEEE Trans. Magn. 35, 3178–3180 (1999) CrossRef

Sonehara, M., et al.: Preparation and characterization of Mn-Ir/Fe-Si exchange-coupled film for high-frequency micromagnetic devices. J. Magn. Soc. Japan 29(2), 132–137 (2005) CrossRef

10.

Kondo, K., et al.: FMR study of plated Ni-Zn-Co ferrite films. In: 28th Digest of Annual Conference on Magnetics in Japan, vol. 28, p. 479 (2004)

11.

Ishida, H., et al.: Fabrication of Ni-Zn ferrite thin film using the low-target-voltage reactive ECR sputtering. method. In: 28th Digest of Annual Conference on Magnetics in Japan, vol. 28, p. 480 (2004)

12.

Yanai, T., et al.: High temperature magnetic properties of Fe-based toroidal core with controlled permeability. In: 30th Digest of Annual Conference on Magnetics in Japan, vol. 30, p. 291 (2006)

13.

Itoh, T., et al.: Nano-structure and magnetic properties of Ni-Fe granular thin films produced by evaporation. In: 28th Digest of Annual Conference on Magnetics in Japan, vol. 28, p. 482 (2004)

14.

Ohnuma, S., et al.: Nano-granular magnetic thin films for applications as soft magnetic materials. In: Digests of the 30th Annual Conference on Magnetics, vol. 30, pp. 435–436 (2006)

15.

Naoe, M., et al.: Investigation of controlling in-plane uniaxial anisotropy of CoPd-CaF ₂ nanogranular films by tandem-sputtering deposition. IEEE Magn. Lett. 5(1), 1–4 (2014)

16.

Ikeda, K., et al.: IEEE INTERMAG Conference 2009, BS-07 (2009)

17.

Sonehara, M., et al.: Fundamental study of high Q-factor RF spiral inductor using carbonyl-iron/epoxy composite magnetic core. IEEJ Trans. Electr. Electron. Eng. 11(S1), S3–S8 (2016) CrossRef

18.

Ikeda, K., et al.: Technical meeting on magnetics. IEE Japan, MAG-09-80 (2009)

19.

Sugawa, Y., et al.: Carbonyl-iron/epoxy composite magnetic core for planar power inductor used in package-level power grid. IEEE Trans. Magn. 49(7), 4172–4175 (2013) CrossRef

20.

JST MIRAI Homepage: https://www.jst.go.jp/mirai/jp/project/index.html

21.

Sugimura, K., et al.: Formation of high electrical-resistivity thin surface layer on carbonyl-iron powder (CIP) and thermal stability of nanocrystalline structure and vortex magnetic structure of CIP. AIP Adv. 6(5), #055932 (2016)

22.

Sato, K., et al.: Fabrication of metal composite magnetic core transformer with surface-oxidized carbonyl-iron powder and its application to the flyback-type dc-dc converter. Trans. Magn. Soc. Japan (Special Issues) 1, 44–52 (2017)

Title

High-Frequency Magnetics

Book

Magnetic Material for Motor Drive Systems

Print ISBN: 978-981-329-905-4

Electronic ISBN: 978-981-329-906-1

https://doi.org/10.1007/978-981-32-9906-1

DOI

https://doi.org/10.1007/978-981-32-9906-1_23

Author:

Makoto Sonehara

Publisher

Springer Singapore

Sequence number

Premium Partners

Image Credits