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.

中文翻译：

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基于导线构型共振的宽带微波吸收

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. 即使对于导线介电常数的虚部的相对较大的值，这种函数依赖性也确保了配置与由导线轴定向的入射场之间的匹配。在静电近似和数值计算范围内获得的理论结果表明，导线的吸收截面可以超过几何截面约 22 倍，而散射效率则可以忽略不计。这样的特性允许人们通过由适当分布在平坦表面上的导线组成的系统来实现对入射波的相对高的吸收。