Evaluation of Characteristics of Electromagnetic Wave Absorbers of Composites Fabricated by Mechanical Milling

Abstract:

It is found through simulation that electromagnetic wave absorbers made of composites of Ni-Zn ferrite and SiO2 particles, which are isolated in a continuous medium of Ni-Zn ferrite, show absorption in the frequency regions both below and above 1 GHz. The measured complex permeabilities are close to simulation values above 1 GHz. Both absorbing bandwidth and center frequency of the composites are close to the desired values expected from the simulation result.

• Periodical: Key Engineering Materials (Volume 301)
• Pages: 113-116
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.301.113
• Online since: January 2006
• Authors: Kiyohiro Hiraki, Hiroki Kusunoki, Takatoshi Kondo, Kazushi Takada, Masahiro Nezaki, Shinzo Yoshikado
• Keywords: Complex Permeability, Composite Electromagnetic Wave Absorber, Isolated Model, Mechanical Milling Method, Ni-Zn Ferrite, SiO₂

References

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