Open AccessElectromagnetic Properties of Hexaferrite Polymer Composite Materials
Author(s) -
Alexey V. Sbrodov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/731/1/012016
Subject(s) - materials science , dielectric , composite number , permeability (electromagnetism) , permittivity , electromagnetic radiation , epoxy , composite material , ferromagnetic resonance , resonance (particle physics) , reflection (computer programming) , ferromagnetism , barium ferrite , nuclear magnetic resonance , ferrite (magnet) , condensed matter physics , magnetic field , magnetization , optics , optoelectronics , physics , chemistry , atomic physics , biochemistry , quantum mechanics , membrane , computer science , programming language
In this paper the results of studies of the electromagnetic characteristics of composite radio materials based on Z-, W-, M-type barium ferrites and epoxy resin are presented. The frequency dependences of the reflection, transmission, and absorption coefficients are shown. The obtained results of the electromagnetic response are in good agreement with the published data on the frequencies of natural ferromagnetic resonance for the types of ferrites considered. Based on the obtained data, the spectra of complex dielectric and magnetic permeabilities were calculated. It has been suggested that the above changes in the complex magnetic permeability are associated with the presence of domain wall resonance in the region of 1 GHz and natural ferromagnetic resonance at higher frequencies.