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Information × Registration Number 0301U002371, 0100U003339 , R & D reports Title Electromagnetic fields investigation in radiating system near zone popup.stage_title Розробка математичних моделей, алгоритмів і компьютерних програм для аналізу електромагнітних полів у близькій, проміжній і дальній зонах лінійних (дротових) випромінювачів довільної довжини. Аналіз хвильвих процесів в залежності від довжини вібратора, способу його збудження, а також від відстані до точки спостереження та її кутових координат. Head Gorobets' M.M., Registration Date 10-04-2001 Organization Kharkov National University named after V.N.Karazin popup.description2 The object of researches: electromagnetic fields and wave processes in near, Freshnel and far regions of linear wire antennas of arbitrary length. The goal of researches: more accurate definition of the mathematical model of linear radiators, designing the algorithm and software for analysis of electromagnetic fields and wave processes in dependence on the vibrator length and on this base finding the limit values of near and far region length of linear antennas. The techniques of researches: theoretical investigations, computer analysis. The more accurate technique of calculating the electromagnetic field in near, Fresnel and far regions of linear wire antennas of arbitrary length had been designed. On the computer analysis base the using limits of the Hertz dipole theory for calculating the short linear antennas and also the decreas of the near region length of the resonance wire antennas was determined. The new technique of calculating the field characteristics in the near region of waveguide radiators had been designed. Results of study of the influence of near region effects on the decision of calculating directional characteristics in the near region of waveguide radiators had been designed. Results of study of the influence of near region effects on the decision of calculating directional characteristis of reflector anennas was shown. The radiation problem of the vertical and horizontal dipole situated in near zone of the dihedral angle reflector screen was solved. Investigation results can be recommended for use in scientifical -and-industrial organizations and SRI for design of antennas for different radiotechnical systems. The importance of these results consists not only in more precise definition of energitical and directional characteristics; they give the possibility to calculate the influence of near region power fielfs of radar antennas at environment and also to estimate the influence of mobil communication radiophones at the man brain. Product Description popup.authors popup.nrat_date 2020-04-02 Close