D. A. Voloshkin – Leading Engineer, NPC-5 of JSC «Academician A.L. Mints Radiotechnical Institute» (Saratov) E-mail: denisvoloshkin@gmail.com

A. A. Zaharov – Dr.Sc. (Eng.), Professor, Department of Radio Engineering, Yuri Gagarin State Technical University of Saratov E-mail: zaharov@sstu.ru

A. V. Voloshkin – Director of NPC-5 of JSC «Academician A.L. Mints Radiotechnical Institute» (Saratov) E-mail: voluric@mail.ru