Studying electromagnetic radiation shielding and absorbing properties of shungite-containing substances

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Abstract

Fine-dispersed shungite as an effective filler of composite materials is studied. Experimental data on the influence of the filler concentration of the composite material on its electromagnetic radiation absorbing and shielding characteristics in the radio and microwave ranges are obtained. The obtained data can be used for manufacturing effective radio-absorbing materials and electromagnetic shields for protection against undesired effects of electromagnetic radiation, information protection, in radio engineering, as well as in warfare.

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About the authors

Yu. V. Samukhina

A. N. Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences

Author for correspondence.
Email: juliesam2008@mail.ru
Russian Federation, Moscow, 119071

A. K. Buryak

A. N. Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences

Email: juliesam2008@mail.ru
Russian Federation, Moscow, 119071

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2. Fig. 1. Measuring setup based on the “NanoVNA V2” vector analyzer connected to a personal computer and a coaxial matched loaded waveguide.

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3. Fig. 2. Block diagram of the measuring setup.

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4. Fig. 3. Dependences of the reflection (a), transmission (b), absorption (c) and effective absorption (d) coefficients on the EMI frequency for various composite samples: pure paraffin (1); shungite 10 (2), 30 (3) and 50% (4).

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