On August 29-31 2017, the International Conference IEEE Microwaves, Radar and Remote Sensing Symposium (MRRS-2017) took place at the National Aviation University (Kyiv). Аbout 50 works from 19 countries were presented at the conference. The work "Plural Three-Wave Resonances of Space Charge Wave Harmonics in Transit Section of Klystron-type Two-Stream FEL with Helical Electron Beam", presented by postgraduate student Iurii Volk (supervisor – Dr.Sc. Alexander Lysenko) was awarded the third prize of the European Microwave Association.