Highly resistive Mn-Zn ferrite films prepared from aqueous solution for GHz conducted noise suppressors

Nobuhiro Matsushita, Tatsunobu Abe, Koichi Kondo, Shigeyoshi Yoshida, Masanori Abe

研究成果: Article査読

19 被引用数 (Scopus)

抄録

We have prepared Mn-Zn ferrite films (MnxZnyFezO4.00-δ: 0.23<x<0.30, 0.0<y<0.38, 2.39<z<2.64) that are highly permeable in GHz range. The film resistivity ρ increased as the amount of Fe content z decreased and very high surface resistance R>108 Ω/sq was attained for the film having z<2.6. The deposited Mn-Zn ferrite films had a large saturation magnetization Ms=380-460 emucm3 and relatively low coercivity Hc=11-29 Oe. The Mn-Zn ferrite films contacted to a microstrip line (50 Ω) exhibited very large transmission loss ΔPloss per thickness t, ΔPlosst, of about 10 times larger than that of commercialized composite sheet. They exhibited sufficiently low reflection coefficient S11<-10 dB. These films were applicable as noise current suppressors deposited on an interlayer of multilayer printed circuit boards.

本文言語English
論文番号10G106
ジャーナルJournal of Applied Physics
97
10
DOI
出版ステータスPublished - 2005 5月 15
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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