Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Behavior of Ferrite-Ferrite composite on Electromagnetic Wave Absorber

페라이트-페라이트 복합형 전파흡수체의 거동

  • 김경용 (한국과학기술원 세라믹스연구단) ;
  • 김왕섭 (한국과학기술원 세라믹스연구단) ;
  • 강선모 (한국과학기술원 세라믹스연구단) ;
  • 정형진 (한국과학기술원 세라믹스연구단)
  • Published : 1991.07.01
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Abstract

The behavior of Ni-Zn ferrite/Mn-Zn ferrite composite electromagnetic absorber was investigated. The imaginary part of complex permeability of the composite was higher than that of either ferrite alone at all frequency range (50∼1400MHz) studied. The difference, which was pronounced in low frequency range, was reached the maximum value when the composite consisted of constituent ferrites with equal amount. Since the thickness in inversely proportional to the imaginary part of complex permeability for the ferrite absorber, it was possible to reduce the thickness of electromagnetic absorber by employing a composite of two different ferrites.

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References

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