Microwave radiation absorbers based on corrugated composites with carbon fibers

A complex analysis of the dependence of the absorption coefficient of polymer composites with nonmagnetic carbon inclusions on the real and imaginary parts of the complex permittivity, as well as on the material thickness is performed in frequency range 26–37 GHz. The composites containing 0.2 wt %...

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Bibliographic Details
Published in:Technical physics 2016-12, Vol.61 (12), p.1880-1884
Main Authors: Bychanok, D. S., Plyushch, A. O., Gorokhov, G. V., Bychanok, U. S., Kuzhir, P. P., Maksimenko, S. A.
Format: Article
Language:English
Subjects:
Absorptance
Absorptivity
Analysis
Carbon fibers
Classical and Continuum Physics
Complex permittivity
Frequency ranges
Inclusions
Microwaves
Physics
Physics and Astronomy
Polymer matrix composites
Radiation (Physics)
Radiophysics
Thickness
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Summary:A complex analysis of the dependence of the absorption coefficient of polymer composites with nonmagnetic carbon inclusions on the real and imaginary parts of the complex permittivity, as well as on the material thickness is performed in frequency range 26–37 GHz. The composites containing 0.2 wt % of carbon fibers have been obtained. It has been experimentally found that the corrugation of the composite surface substantially increases the absorbability (from 63 to 92% at a frequency of 30 GHz and a thickness of 4.50 mm) upon a decrease in the sample mass (by 28%). A method has been proposed for calculating the absorptance of corrugated composites in the microwave range.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784216120094