Uncommon Resonators

It is shown that the examples from absolutely different physics regions, the such as: the resonant phenomena at electromagnetic wave propagation across an accidental medium; ultra-high resolution ability of lens from a left-handed material; the anomalous transparence of a performed optical thick metal film; a suppression of a total internal reflection; and a total adsorption of the electromagnetic wave by overdense plasmas, have been carried out to a solution of a conventional UHF-electronics problem concerning a wave propagation across either a resonator with the semi-transparent walls or system of two connected resonators