ACTA

Shielding Effectiveness of Electromagnetic Field by Specially Developed Shielding Coating

I. Kolcunová^a, J. Zbojovský^a, M. Pavlík^a, S. Bucko^b, J. Labun^b, M. Hegedus^c, M. Vavra^c, R. Cimbala^a, J. Kurimský^a, B. Dolník^a, J. Petráš^a, J. Džmura^a
^aDept. of Electric Power Engineering, Faculty of Electrical Engineering and Informatics of the Technical University of Košice, Mäsiarska 74, 041 20, Košice, Slovakia
^bDept. of Avionics, Faculty of Aeronautics, Technical University of Košice, Rampová 7, 041 21 Košice, Slovakia
^cInstitute of Chemistry, Faculty of Science, P.J. Šafárik University in Košice, SK-040 01 Košice, Slovakia

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This article aims to present the results of the measurements of the electromagnetic wave penetration through the building element with a specially developed shielding coating. Shielding coating represents dispersed powder in semiconducting liquid. The powder consists of the complex oxides of La_0.7Sr_0.3MnO₃ (LSMO), ZnFe₂O₄, NiFe₂O₄ composition and were prepared by self-combustion method using corresponding metal nitrates in required molar ratio and glycine as fuel. Measurements were made for powder concentration of 5 g. Measurements were performed in the frequency range from 0.8 GHz to 8 GHz. The measurement results show the electromagnetic wave shielding effectiveness of the used shielding coating.

DOI:10.12693/APhysPolA.137.711
topics: shielding coating, experimental powder electromagnetic field, high frequency, reflection absorption, shielding effectiveness