بررسی رفتار جذب امواج الکترومغناطیسی در نانوکامپوزیت فریت های سخت – نرم در محدوده فرکانسی GHz 18-1

نوع مقاله: مقاله پژوهشی کامل

نویسندگان

1 پژوهشگر - مرکز تحقیقات الکتروسرام، دانشگاه صنعتی مالک اشتر، شاهین شهر، ایران

2 استادیار/مرکز تحقیقات الکتروسرام، دانشگاه صنعتی مالک اشتر، شاهین شهر، ایران

چکیده

در این تحقیق جذب امواج الکترومغناطیسی در محدوده ی فرکانسی GHz 18-1 در نانوکامپوزیت های فریت های سخت و نرم مغناطیسی بررسی شده است. این کامپوزیت ها شامل دو فاز مغناطیسی متفاوت با درصدهای وزنی مختلف هستند که در آن ها فاز مغناطیسی سخت (هگزافریت استرانسیوم) در کنار فاز مغناطیسی نرم (فریت کبالت–روی) قرار می گیرد. آنالیز پراش پرتو X از نمونه ها نشان می‌دهد که فاز خالصی از فازهای مغناطیسی موردنظر شکل گرفته است. بررسی قسمت های حقیقی و موهومی گذردهی الکتریکی و تراوایی مغناطیسی مختلط نمونه ها در محدوده ی فرکانسی GHz 18-1 چگونگی پاسخ امواج الکترومغناطیسی به این نمونه ها را در این محدوده ی فرکانسی نشان می دهد. اتلاف بازتابی بر حسب فرکانس، نشان دهنده ی این رفتار جذبی در نمونه ها می باشد.

کلیدواژه‌ها


عنوان مقاله [English]

Investigation on electromagnetic wave absorption behavior of Hard-Soft ferrite nanocomposite in the frequency range of 1-18 GHz

نویسندگان [English]

  • Ahmad Poorbafrani 1
  • Mohammad Hoseyn Shams 2
1 Electroceram Research Center, Malek Ashtar University of Technology, Shahin Shahr, Iran
2 Electroceram Research Center, Malek Ashtar University of Technology, Shahin Shahr, Iran
چکیده [English]

In this study, we investigate the electromagnetic wave absorption of Hard-Soft ferrite nanocomposites in the frequency range of 1-18 GHz. These composites consist of two different magnetic phases with different weight ratios. The hard magnetic phase consists of Strontium Hexaferrite (SF) and the soft magnetic phase consists of Cobalt Zinc Ferrite (CZF). XRD analysis of the samples indicate formation of pure phase for each magnetic phases. Investigation of the real and imaginary parts of complex permittivity and permeability of samples indicate the response of electromagnetic waves to these samples in the frequency range of 1-18 GHz. The reflection loss versus frequency shows this absorbing behavior in the samples.

کلیدواژه‌ها [English]

  • Microwave absorption
  • Hard-Soft ferrite Nanocomposite
  • Reflection loss
  • structural properties

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