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We present an analysis of the possibility of penetrating electromagnetic waves through opaque media using an optical-mechanical analogy which exploits mathematical identity of the stationary Schroedinger equation in quantum mechanics for the particle motion in the potential field and Helmholtz equation in wave theory. a) We consider the plasma sheath surrounding the vehicle as a potential barrier and analyze the overcoming of radiocommunication blackout problem. The idea is to embed a «resonator» between the surface on the vehicle and plasma sheath which is supposed to provide effective tunneling of the signal to the receiving antenna. b) We suggest an opportunity to enhance the efficiency of bolometric detectors by providing efficient penetration of the electromagnetic field into the conductive region with quasi-free charges. c) We present a new look at the analysis of the propagation of electromagnetic field pulses in waveguide structures. The predicted “quantum” effects (coherent oscillations, Rabi transitions) for classical light with a macroscopically large number of photons can be used as the basis for creating elements of neural networks using abilities of the microwave photonics.