V.M. Kotov - Dr. Sc. (Phys.-Math.), Leading Research Scientist, Fryazino branch of Kotel\'nikov IRE of RAS. E-mail: vmk277@ire216.msk.su G.N. Shkerdin - Dr. Sc. (Phys.-Math.), Professor, Head of Laboratory , Fryazino branch of Kotel\'nikov IRE of RAS. E-mail: gns277@ire216.msk.su A.N. Bulyuk - Ph. D. (Phys.-Math.), Research Scientist, Fryazino branch of Kotel\'nikov IRE of RAS. E-mail: anb277@ire216.msk.su A.I. Voronko - Ph. D. (Phys.-Math.), Research Scientist, Fryazino branch of Kotel\'nikov IRE of RAS. E-mail: aiv277@ire216.msk.su S.A. Tikhomirov - Research Scientist, Fryazino branch of Kotel\'nikov IRE of RAS