Low-loss composite material containing fine Zn-Ni-Fe flakes for high-frequency applications

Yasushi Shirakata; Nobuhiro Hidaka; Masayuki Ishitsuka; Akinobu Teramoto; Tadahiro Ohmi

doi:10.1109/TMAG.2009.2022405

Low-loss composite material containing fine Zn-Ni-Fe flakes for high-frequency applications

Yasushi Shirakata, Nobuhiro Hidaka, Masayuki Ishitsuka, Akinobu Teramoto, Tadahiro Ohmi

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

A low-loss magnetic composite material consisting of Zn₅Ni ₇₅Fe₂₀ fine flakes dispersed in a polymer has been developed for miniaturization and performance improvement of high-frequency devices. Fine flakes are produced by a new mixing procedure that prevents cohesion of particles, thereby enhancing the dispersibility of the particles. The complex relative permeabilities of the developed material areμ' = 2.4,μ" = 0.09, and tanσ δμ(= μ"/μ') = 0.04 at 1 GHz. The low-loss properties of the developed magnetic composite material are confirmed by measured and simulated results of the basic characteristics of a small helical antenna loaded with the developed material.

Original language	English
Article number	5257350
Pages (from-to)	4337-4340
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	45
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2009.2022405
Publication status	Published - 2009 Oct
Externally published	Yes

Keywords

Antennas
High frequency
Magnetic loss
Permeability

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2009.2022405

Cite this

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abstract = "A low-loss magnetic composite material consisting of Zn5Ni 75Fe20 fine flakes dispersed in a polymer has been developed for miniaturization and performance improvement of high-frequency devices. Fine flakes are produced by a new mixing procedure that prevents cohesion of particles, thereby enhancing the dispersibility of the particles. The complex relative permeabilities of the developed material areμ' = 2.4,μ{"} = 0.09, and tanσ δμ(= μ{"}/μ') = 0.04 at 1 GHz. The low-loss properties of the developed magnetic composite material are confirmed by measured and simulated results of the basic characteristics of a small helical antenna loaded with the developed material.",

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AU - Shirakata, Yasushi

AU - Hidaka, Nobuhiro

AU - Ishitsuka, Masayuki

AU - Teramoto, Akinobu

AU - Ohmi, Tadahiro

PY - 2009/10

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AB - A low-loss magnetic composite material consisting of Zn5Ni 75Fe20 fine flakes dispersed in a polymer has been developed for miniaturization and performance improvement of high-frequency devices. Fine flakes are produced by a new mixing procedure that prevents cohesion of particles, thereby enhancing the dispersibility of the particles. The complex relative permeabilities of the developed material areμ' = 2.4,μ" = 0.09, and tanσ δμ(= μ"/μ') = 0.04 at 1 GHz. The low-loss properties of the developed magnetic composite material are confirmed by measured and simulated results of the basic characteristics of a small helical antenna loaded with the developed material.

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KW - Magnetic loss

KW - Permeability

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Low-loss composite material containing fine Zn-Ni-Fe flakes for high-frequency applications

Abstract

Keywords

ASJC Scopus subject areas

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