Search academic texts

Information × Registration Number 0214U000224, 0111U002465 , R & D reports Title Electrodynamics of systems of linear radiators : vibrators with the distributed impedance and narrow slots popup.stage_title Head Кatrich Viktor, Доктор фізико-математичних наук Registration Date 24-01-2014 Organization Kharkov National University named after V.N. Karazin popup.description2 Object of research – processes of excitation, radiation and scattering of electromagnetic fields by by systems of thin (generally irregular) impedance vibrators and narrow slots located in electrodynamic volumes with perfectly conducting boundaries and in free space. The project purpose is development of numerical and analytical methods of the theory of linear radiators and creation on their basis the physically correct mathematical models, models that allow to carry out rigorous theoretical analysis of the excitation fields and functional characteristics of systems of thin impedance vibrators and narrow slots in different electrodynamic volumes including material filled environment. In the project the idea of using the methods of electro-magneto-motive forces of the authors proposed a new class of approximating functions for the distributions of currents derived from asymptotic solutions of key boundary value problems is implemented, that is a further step in the development and generalization of physically correct numerical-analytical methods in the theory of vibrator and slot radiators for the efficient analysis of multiple systems consisting of impedance vibrators (generally irregular) and narrow slots (coordinate and noncoordinate). This approach retains all the advantages of similar known numerical- analytical methods in comparison with direct numerical methods, allows to extend the limits of applicability of numerical-analytical methods for the study of practically significant problems associated with the use of impedance vibrators, waveguide-slot, coaxial-slot radiators and combined vibrator-slot structures.The modern theory of regular coaxial-slot, waveguide-slot and impedance vibrator radiators is developed, theoretical and practical study of their characteristics is made. It is shown that the use of the specifics of the electrodynamic characteristics of fields caused by peculiarities of radiation and excitation of linear radiators of various types allows to find a solution of a significant range of tasks of modern radiophysics. Solving these problems create the basic conditions for the development of many scientific research areas and applied developments for different fields of application. ELECTROMAGNETIC WAVES, DIFFRACTION, WAVEGUIDE-SLOT RADIATOR, DIPOLE RADIATOR, IMPEDANCE RADIATOR. Product Description popup.authors Бердник С. Кийко В. Лященко В. Медвєдєв М. Нестеренко М. Пєнкин Ю. Пшенична С. popup.nrat_date 2020-04-02 Close