Radio Absorbing Composite Based on Square Resistive Patches

Solutions to the diffraction problems are used to calculate the effective permittivity of a composite material consisting of alternating planar arrays of square resistive patches shifted relative to each other in a dielectric layer. The relaxation character of the dispersion is demonstrated. The dis...

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Bibliographic Details
Published in:Technical physics 2020-06, Vol.65 (6), p.968-974
Main Authors: Ponomarenko, V. I., Lagunov, I. M.
Format: Article
Language:English
Subjects:
Adequacy
Arrays
Classical and Continuum Physics
Composite materials
Dielectric relaxation
Dielectrics
Mathematical analysis
Permittivity
Physics
Physics and Astronomy
Radiophysics
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Summary:Solutions to the diffraction problems are used to calculate the effective permittivity of a composite material consisting of alternating planar arrays of square resistive patches shifted relative to each other in a dielectric layer. The relaxation character of the dispersion is demonstrated. The dispersion characteristic can be varied in wide ranges using variations in the parameters of the structure. Relative shifts of the arrays substantially affect the dispersion of permittivity of the structure. A ratio of the wavelength to the period of the structure that provides adequacy of a homogenization procedure is estimated.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784220060225