R.I. Shabanov – Head of Laboratory, 
PJSC «Radiofizika» (Moscow)
E-mail: shabanov.r@radiofizika.com

N.I. Dubovik – Post-graduate Student, Engineer, 
PJSC «Radiofizika» (Moscow)
E-mail: dubovik.n@radiofizika.com

V.V. Denisenko – Ph.D.(Phys.-Math.), Head of Department, 
PJSC «Radiofizika» (Moscow)
E-mail: dubovik.n@radiofizika.com