A.V. Eliseev - Dr.Sc. (Eng.), Leading Research Scientist, Federal Research-and-Production Centre, Rostov-on-Don Radio Communication Scientific Research Institute E-mail: eliseev_av65@mail.ru N.Ju. Muzychenko - Dr.Sc. (Eng.), Leading Research Scientist, Federal Research-and-Production Centre, Rostov-on-Don Radio Communication Scientific Research Institute E-mail: muzichenko_n@mail.ru M.O. Roibu - Engineer, Federal Research-and-Production Centre, Rostov-on-Don Radio Communication Scientific Research Institute E-mail: mxmr@mail.ru