Evaluation of characteristics of composite electromagnetic wave absorbers

Kenji Sakai, Kiyohiro Hiraki, Hiroki Kusunoki, Takatoshi Kondo, Shinzo Yoshikado

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

It is found through simulation that composite electromagnetic wave absorbers made of Ni-Zn ferrite and SiO2 particles, which are isolated in the continuous medium of Ni-Zn ferrite, show good absorption. In particular, absorbers show absorption in the frequency regions both below and above 1 GHz for the mixing ratio of SiO2 of 80 mol%. To simulate the complex permeability of the composite materials, we considered some arrangements of SiCh in the Ni-Zn ferrite medium. Measured values of complex permeability are close to simulated ones above 1 GHz.

Original languageEnglish
Pages (from-to)193-196
Number of pages4
JournalKey Engineering Materials
Volume320
DOIs
Publication statusPublished - Sep 14 2006
Externally publishedYes

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Keywords

  • Complex permeability
  • Composite electromagnetic wave absorber
  • Isolated model
  • Mechanical milling method
  • Ni-/n ferrite
  • SiO

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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