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Open AccessArticle

Dielectric Permittivity Model for Polymer–Filler Composite Materials by the Example of Ni- and Graphite-Filled Composites for High-Frequency Absorbing Coatings

1
Institute of Electronic Packaging Technology, Technische Universität Dresden, 01069 Dresden, Germany
2
Department of Microelectronics, National Technical University of Ukraine, 03056 Kiev, Ukraine
3
Department of Systems for Testing and Analysis, Fraunhofer Institute for Ceramic Technologies and Systems IKTS, 01109 Dresden, Germany
*
Authors to whom correspondence should be addressed.
Coatings 2021, 11(2), 172; https://doi.org/10.3390/coatings11020172
Received: 30 November 2020 / Revised: 11 January 2021 / Accepted: 26 January 2021 / Published: 1 February 2021
The suppression of unnecessary radio-electronic noise and the protection of electronic devices from electromagnetic interference by the use of pliable highly microwave radiation absorbing composite materials based on polymers or rubbers filled with conductive and magnetic fillers have been proposed. Since the working frequency bands of electronic devices and systems are rapidly expanding up to the millimeter wave range, the capabilities of absorbing and shielding composites should be evaluated for increasing operating frequency. The point is that the absorption capacity of conductive and magnetic fillers essentially decreases as the frequency increases. Therefore, this paper is devoted to the absorbing capabilities of composites filled with high-loss dielectric fillers, in which absorption significantly increases as frequency rises, and it is possible to achieve the maximum frequency selective of absorption due to electromagnetic and electromechanical resonances. View Full-Text
Keywords: absorbing materials; polar dielectrics; internal polar phase; electromagnetic interference; graphite; polymer matrix; absorbing shielding absorbing materials; polar dielectrics; internal polar phase; electromagnetic interference; graphite; polymer matrix; absorbing shielding
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MDPI and ACS Style

Prokopchuk, A.; Zozulia, I.; Didenko, Y.; Tatarchuk, D.; Heuer, H.; Poplavko, Y. Dielectric Permittivity Model for Polymer–Filler Composite Materials by the Example of Ni- and Graphite-Filled Composites for High-Frequency Absorbing Coatings. Coatings 2021, 11, 172. https://doi.org/10.3390/coatings11020172

AMA Style

Prokopchuk A, Zozulia I, Didenko Y, Tatarchuk D, Heuer H, Poplavko Y. Dielectric Permittivity Model for Polymer–Filler Composite Materials by the Example of Ni- and Graphite-Filled Composites for High-Frequency Absorbing Coatings. Coatings. 2021; 11(2):172. https://doi.org/10.3390/coatings11020172

Chicago/Turabian Style

Prokopchuk, Artem; Zozulia, Ivan; Didenko, Yurii; Tatarchuk, Dmytro; Heuer, Henning; Poplavko, Yuriy. 2021. "Dielectric Permittivity Model for Polymer–Filler Composite Materials by the Example of Ni- and Graphite-Filled Composites for High-Frequency Absorbing Coatings" Coatings 11, no. 2: 172. https://doi.org/10.3390/coatings11020172

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