[IEEE 2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW) - Kharkiv, Ukraine (2016.6.20-2016.6.24)] 2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW) - Investigation of radiation characteristics of fresnal antenna