D.V. Nefedov - Ph.D. (Eng.), Researcher, Kotelnikov IRE RAS (Saratov branch). E-mail: nefedov_dv@rambler.ru S.Yu. Suzdaltsev - Ph.D. (Eng.), Senior Researcher, Kotelnikov IRE RAS (Saratov branch) V.Ya. Shanygin - Senior Engineer, Kotelnikov IRE RAS (Saratov branch) R.K. Yafarov - Dr.Sc. (Eng.), Head of the Laboratory, Kotelnikov IRE RAS (Saratov branch)

D.V. Nefedov - Ph.D. (Eng.), Researcher, Saratov Branch of the Kotel-nikov Institute of Radio Engineering and Electronics Russian Academy of Science E-mail: nefedov_dv@rambler.ru S.Y. Suzdaltsev - Ph.D. (Eng.), Senior Research Scientist, Saratov Branch of the Kotel-nikov Institute of Radio Engineering and Electronics Russian Academy of Science V.Y. Shanygin - Senior Engineer, Saratov Branch of the Kotel-nikov Institute of Radio Engineering and Electronics Russian Academy of Science R.K. Yafarov - Dr.Sc. (Eng.), Professor, Head of the Laboratory, Saratov Branch of the Kotel-nikov Institute of Radio Engineering and Electronics Russian Academy of Science