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Electromagnetic shielding properties of soft magnetic metal and ferrite composites for application to suppress noise in a radio frequency range

  • 1. Informatics: Dielectrics, Ferroelectrics, and Piezoelectrics
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Abstract

Electromagnetic shielding properties of soft magnetic metal alloy (Fe-Al-Si) flakes and Ni-Zn ferrite composites for effective suppression of broadband and high frequency noise were investigated. In the soft magnetic composites, the maxima of reflection loss were shifted to high frequency with increase in content of Ni-Zn ferrite. The composites with content of 50 and 70% ferrite exhibited broadband absorptive characteristics. The broadband character- istics might be caused by the extended resonance due to an overlap between imaginary permeability and permittivity of the two composites over the frequency range from 2 to 10 GHz.

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Authors and Affiliations

  1. Nano-materials Research Center, Korea Institute of Science & Technology, 39-1 Haweoulgog-dong, Sungbuk-ku, Seoul, 136-791, South Korea

    Yong Woon Yun & Sang Woo Kim

  2. Advanced Metals Research Center, Korea Institute of Science & Technology, 39-1 Haweoulgog-dong, Sungbuk-ku, Seoul, 136-791, South Korea

    Gwang Yoon Kim & Yoon Bae Kim

  3. R&D Center, Chang Sung Corperation, 11-9 Namdong Industrial Area, Namdong-Ku, Incheon, Korea

    Yeo Chun Yun & Kyung Sup Lee

Authors
  1. Yong Woon Yun
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  2. Sang Woo Kim
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  3. Gwang Yoon Kim
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  4. Yoon Bae Kim
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  5. Yeo Chun Yun
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  6. Kyung Sup Lee
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Correspondence to Sang Woo Kim.

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Yun, Y.W., Kim, S.W., Kim, G.Y. et al. Electromagnetic shielding properties of soft magnetic metal and ferrite composites for application to suppress noise in a radio frequency range. J Electroceram 17, 467–469 (2006). https://doi.org/10.1007/s10832-006-8566-4

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  • DOI: https://doi.org/10.1007/s10832-006-8566-4

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