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Journal Radioengineering №10 for 2020 г.
Article in number:
Improving the efficiency of electronic warfare when using composite parts based on a carbon matrix impregnated with a radio-absorbing polymer binder
Type of article: scientific article
DOI: 10.18127/j00338486-202010(20)-09
UDC: 621.37
Keywords: Composites based on carbon absorber contact impregnation surface tension of a liquid van der Waals forces carbon filaments amplitude-frequency characteristic (AFC) frequency bands of GHz carbon fibers (HC) elastic modulus radio absorbing materials (RPM) microwave devices pressure impregnation.
Authors:

A.A. Kalinin − Process Engineer

A.V. Kryukov − Process Engineer

A.S. Eremeev − Process Engineer

P.A. Golovkin − Ph.D. (Eng.), Deputy Chief Technologist

Abstract:

Problem statement. When developing microwave modules, sheet radio frequency absorbers placed in a sealed module housing are usually used for their stable operation. Disadvantages of sheet materials are the large thickness of the applied coating, the complexity of applying to parts of complex configuration. It is not possible to form the part itself from the material without using a rigid base.

Goal. Obtaining an inorganic absorber and manufacturing experimental parts based on this polymer by molding or casting.

Results. Experimental parts are made on the basis of developed polymers. A comprehensive analysis of the absorption coefficient of polymer composites with non-magnetic carbon inclusions depending on the thickness of the material and its dielectric constant in the frequency range 26-37 GHz was performed.

Practical significance. It is established that the impregnation of carbon fabric parts (composites) with an absorbing paste leads to a significant increase in the absorption coefficient, and their matrix is not the main barrier to absorption in the manufacture of microwave devices for aviation, rocket and space technology.

Pages: 77-103

 

 

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Date of receipt: 14.08.2020