V.S. Gurov - Dr. Sc. (Eng.), Professor, Head of Department «Industrial Electronics», Rector of Ryazan State Radio Engineering University E-mail: gurov.v.s@rsreu.ru M.V. Dubkov - Ph. D. (Eng.), Associate Professor, Head of Department of General and Experimental Physics, Pro-rector of R&D Ryazan State Radio Engineering University E-mail: dubkov.m.v@rsreu.ru V.V. Ivanov - Ph. D. (Eng.), Associate Professor, Department of General and Experimental Physics, Ryazan State Radio Engineering University E-mail: vladimir.nvi@gmail.com A.V. Nikolaev - Senior Lecturer, Department of General and Experimental Physics, Ryazan State Radio Engineering University E-mail: arniell@mail.ru