Yu.N. Gorbunov - Dr.Sc. (Eng.), Professor, Department No. 333 MSTU MIREA; Senior Research Scientist, Institute of Radio Engineering and Electronics n.a. V.A. Kotelnikov RAS. E-mail: gorbunov@ms.ire.rssi.ru

V.M. Artemiev1, S.M. Kostromitsky2, A.O. Naumov3

1,3 Institute of Applied Physics of National Academy of Sciences of Belarus (Minsk, Republic of Belarus)

2 Radio Engineering Center of National Academy of Sciences of Belarus (Minsk, Republic of Belarus)