Yu.I. Alekseev - Dr. Sc. (Eng.), Professor, Department of antennas and radio transmitting devices, Radio Engineering Systems and Management Institute of SFU (Taganrog) I.V. Semernik - Post-graduate Student, , Department of antennas and radio transmitting devices, Radio Engineering Systems and Management Institute of SFU (Taganrog) E-mail: ione7nick@yandex.ru