Tsekhmistro R. Physical laws of electromagnetic field spatial distribution of vibrator radiators to a near zone

The object of study: electromagnetic field in near zone. The aim of research: study of waves process in antenna on base of computer analalysis of amplitudes and phases characteristics of Hertzian dipole radiation in absorbing medium and free spase, vibrators antennas of finite sizes, linear and annular Hertzian dipole antenna arrays. Methods of research: approximation by Кіng, averaging of the differential equation, mеthod moments. Theoretical аnd practical results: it is revealed that with approach of vibrator's length to resonant value in the field of space near the vibrator reactive powers of near field is reduced; the electrical size of the vibrator less or equal 0,02 of the wave length may be considered as criterion of application of Hertzian dipole radiation theory for the analysis radiation of vibrators antennas; is established, that with the increase of losses at absorbing medium in a near zone Нertzian dipole reactive power is reducing, and in a far zone power оf the field acquires a reactive component. The sphere of application: radiophysics.