Abstract
<jats:p>Electrodynamic media for electromagnetic compatibility problems based on elastomeric composite materials using a polydimethylsiloxane matrix have been obtained and studied. Powders of ferroelectrics BaTiO3 and KNbO3, thermally expanded and dispersed graphite, as well as multi-walled carbon nanotubes were used as fillers. When studying the electrophysical properties and characteristics of reflection and transmission in the frequency range of 25.86...37.5 GHz, it was found that the studied parameters of materials can be varied widely by choosing the type of filler and its concentration in the matrix. Such composites are of considerable interest for the development of functional metamaterials with controllable characteristics.</jats:p>