Abstract
The absorption efficiency of a conductive wire can be essentially increased in the broad microwave spectrum from 4 to 12 GHz by the appropriate choice of the radius and height of a wire. Such functional dependence ensures matching between the configuration and the incident field oriented by the wire axis even for relatively large values of the imaginary part of the dielectric constant of a wire. Theoretical results obtained within the limits of electrostatic approximation and numerical calculations reveal that the absorption cross-section of a wire can exceed the geometrical one by about 22 times, whereas the scattering efficiency is negligibly small. Such properties allow one to achieve relatively high absorption of the incident wave by a system consisting of the wires properly distributed on a flat surface.
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