Authors: Vladimir Arabadzhi.
In the time representation, the parametric microstructure (material) filling the radio absorbing shell of the protected body is analyzed analytically. This passive microstructure provides absorption of any (in frequency and direction) radio wave perturbations which have came to the zone of parameters modulation (this is the ideal of the “black body”). Ultra-high spatial-temporal resolution in the control of this structure provides effective absorption in a thin (in comparison with the incident wavelength) shell. Absorption in a thin parametric shell occurs due to the transfer of the energy of the incident wave to the area of high-frequencies (much larger than, for example, traditional harmonics of the absorbed wave). It is shown that: (a) the alternative parametric version (as opposed to the traditional one) of “black body” can have both large and arbitrarily small wave dimensions, as well as an arbitrary shape (smooth or non-smooth); (b) “black shell” can be of thickness much less than minimum length of incident wave; (c) the outer scattering properties of the “black shell” and “black body” (when the entire volume of the body is filled with the material of the “black shell”) are identical to each other.
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