Journal of Radio Electronics. eISSN 1684-1719. 2025. №7
Full text in Russian (pdf)
DOI: https://doi.org/10.30898/1684-1719.2025.7.1
INTERRELATIONSHIP BETWEEN DECOUPLING AND REFLECTIVE
PROPERTIES OF MAGNETODIELECTRIC COATINGS
A.Yu. Vetuzhsky
Institute of Physical Materials Science of the Siberian Branch of RAS,
670047, Russia, Ulan-Ude, Sakhyanovoy st., 6
The paper was received December 12, 2024.
Abstract. The problem of excitation of a magnetodielectric layer on a conducting base by a vertical electric dipole is considered. The conditions for maximum attenuation of the near-surface field above such a layer are determined. It can be used for the purposes of spatial decoupling of onboard antennas of aircraft. The relationship between the decoupling and reflecting properties of the coatings under consideration is analyzed. It is shown that the interference structure of the field above the surface of such coatings under the same conditions determines both the minimum values of the near-surface field level and the minimum values of the wave reflection coefficient. The influence of the electrophysical properties of magnetodielectrics on the reflectivity of the layers is studied. The possibility of optimizing the coating parameters to achieve low values of the wave reflection coefficient in a wide frequency band is demonstrated. It is noted that a mandatory requirement for creating non-reflective coatings effective over a frequency range is the use of composite materials with complex magnetic permeability.
Key words: magnetodielectric layer, reflection coefficient, field attenuation, permittivity and permeability, surface impedance.
Financing: The study was carried out with the help of a grant from the Ministry of Education and Science of the Republic of Buryatia for the implementation of applied scientific research projects (Agreement No. 503).
Corresponding author: Vetluzhsky Alexander Yurievich, vay@ipms.bscnet.ru
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For citation:
Vetluzhsky A.Yu. Interrelationship between decoupling and reflective properties of magnetodielectric coatings. // Journal of Radio Electronics. – 2025. – № 7. https://doi.org/10.30898/1684-1719.2025.7.1 (In Russian)