A.P. Trifonov - Honored Scientist of RF, Dr. Sc. (Eng.), Professor, Head of Department of Radiophysics, Voronezh State University E-mail: trifonov@phys.vsu.ru V.N. Vereschagin - Post-graduate Student, Department of Radiophysics, Voronezh State University E-mail: Slawa-W@mail.ru V.K. Marshakov - Ph. D. (Phys.-Math.), Associate Professor, Department of Radiophysics, Voronezh State University E-mail: mvk@phys.vsu.ru

Yu.N Gorbunov1, M.A Epifanov2

1 Fryazino branch of Kotelnikov Institute of Radioengineering and Electronics of RAS (Moscow, Russia)

1 JSC "Central radio-research institute named after academician A.I. Berg" (Moscow, Russia)

2 Science Research Institute of Space Device Engineering, Branch of JSC "URSC" (Moscow, Russia)

1 gorbunov26.10.48@gmail.com, 2 epifanov_ma@orkkp.ru