O.E. Glukhova – Dr.Sc.(Phys.-Math.), Professor, Head of Department of Radiotechnique and Electrodynamics, Saratov State University named after N.G. Chernyshevsky

E-mail: GlukhovaOE@info.sgu.ru

V.V. Mitrofanov – Post-graduate Student, Department of Radiotechnique and Electrodynamics, 

Saratov State University named after N.G. Chernyshevsky

E-mail: ip.boyar@gmail.com

M.M. Slepchenkov – Ph.D.(Phys.-Math.), Associate Professor, Department of Radiotechnique and Electrodynamics, Saratov State University named after N.G. Chernyshevsky

E-mail: slepchenkovm@mail.ru