Tepliakov I. Efficiency improvement of the radiative corrugated-rod structure using plasma discharge.

The thesis presents the contribution to the solution of the scientific and practical task of method development for increasing of a corrugated-rod structure radiation efficiency by plasma discharge using and modulation parameters changing of the surface impedance. Mathematical and simulation modeling was used for investigation of the surface impedance constructive parameters of the corrugated-rod structure which is proportionated to wavelength in free space for achievement of transverse radiation and as a result directivity had been improved by the metal rod replacing with plasma discharge. The author used high-level interpreted programming language «Python» for program development using object-oriented programming methodology for solution automation of the corrugated-rod structure problem analyzing with finite dimensions based on induced electromotive forces method. An experimental model of the corrugated-rod structure has been designed where plasma discharge was used instead of a metal rod for developed models verification and evaluation of radiation efficiency increasing. The resulting shape and the effective geometric dimensions of the corrugated-rod structure based on plasma discharge increased the directivity by 3,592 dB in the transverse direction relative to the main axis of the structure.