S. N. Razin'kov - D.Sc. (Phys.-Math.), Leading Research Scientist, Scientific and Research Test Center of Electronic Warfare, Air Force Academy named after Professor N. E. Zhukovsky and Yu. A. Gagarin. E-mail: razinkovsergey@rambler.ru
O. E. Razin'kova - Scientific and Research Test Center of Electronic Warfare, Air Force Academy named after Professor N. E. Zhukovsky and Yu. A. Gagarin

On the basis of the numerical solution of the integrated-differential equations with existential operators the method of consecutive advance on time the analysis of secondary radiation of radio impulses on the opened ring from ideally carrying out tube of small electric radius with infinitely thin walls is carried out. Dependences of the power chart of dispersion of a ring on its electric sizes, look, parameters and the angular provision of a source of irradiating signals are investigated. It is established, that the power chart of dispersion of the object raised by a radio impulse with Gaussian bending around, has big width in comparison with the characteristic of secondary radiation of the rectangular radio impulse possessing smaller equivalent duration. The provision of local minimum of the chart of dispersion of a ring with a fixed electric radius can change depending on width of a gap and the angular provision of a source of signals. To increase in cyclic frequency bearing a radio impulse within resonant area there width of the power chart of dispersion of ring almost monotonous is reduction; at increase of duration of a radio impulse level of lateral secondary radiation is decreases.