Анотація:
Last years the works appeared in which models of artificial dielectrics containing in a frequency band simultaneously negative values of the dielectric permittivity and magnetic permeability were discussed [1, 2]. As is shown in [3], the electromagnetic wave propagation in such a media is characterized with peculiarities that are important to understand the electromagnetic radiation interaction with tissues in vivo.
The aim of this work is to show that such a media in organic nature can be meet at every step, and the mechanism of formation of simultaneous negative values of ε(ω) and μ(ω) is contained already by their physical structures. Moreover, experimental facts are known confirming the existence of positive and negative values of ε and μ in a narrow frequency band that, unfortunately, is still not completely understood till now.