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Information × Registration Number 0212U002789, 0109U000537 , R & D reports Title Optimization of space distribution of the field near the devices radiating the electromagnetic waves popup.stage_title Head Gorobets Nikolay, Registration Date 10-02-2012 Organization Kharkov National University named after V.N. Karazin popup.description2 Object of research - electromagnetic fields and waves in the near, intermediate and far regions of observation, vibrator, framework and aperture radiators of electromagnetic waves. The aim of the research is to obtain knowledge of wave processes and knowledge of the physical regularities of the formation of the space distribution of the field in the region near the radiating system when the wave length, size, shape and configuration of the radiating system are amended, as well as the way of its stimulation, and on this basis, development of ways of optimization of radiating systems for the distribution of the field in a working region in the given volume or on the plane. Methods of research are theoretical research, numerical analysis, experiment. Resolved electrodynamics external problem of the radiation of a diffusive dipole Hertz finding, linear, curved, spiral radiators progressing wave in the near and intermediate regions of observation. Analytical expressions for calculation of all electric and magnetic field vectors components are obtained in the spherical and cartesian coordinate systems. A numerical analysis of the wave processes in the vicinity of these radiators was carried out. Thus, designed physico-mathematical models of radiators progressing wave more complex in comparison with well-known ones. The opportunities to optimize the space distribution of the field near the radiating systems in the work area on a plane or in the volume were identified: in the case of a vibrator and framework emitters - the use of resonant oscillators and their interconnecting, for aperture antennas - the choice of radiating aperture form, the amplitude and phase distributions of the field on the antenna. The influence of the screen on the field near the vibrator antennas was investigated theoretically and experimentally. The characteristics of radiation of sparse antenna arrays was studied by numerical analysis. The effects of focusing of electromagnetic waves in dielectric cylinder and ball were investigated by the method of geometrical optics. ELECTROMAGNETIC WAVES, LOOP, DIPOLE, APERTURE RADIATORS, NEAR, INTERMEDIATE AND FAR REGION OF ANTENNA, RADIATION CHARACTERISTICS Product Description popup.authors Єлисєєва Н. Булгакова Г. Горобець О. Горобець Ю. Овсяннікова О. Стасюк Н. Тривайло О. Шишкова Г. popup.nrat_date 2020-04-02 Close