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Information × Registration Number 0221U101880, 0120U102309 , R & D reports Title Electromagnetic fields of impulse sources and nano-oscillators in homogeneous, layered, and nonlinear media. popup.stage_title Head Dumin Oleksandr M., Registration Date 26-01-2021 Organization V.N. Karazin Kharkiv National University popup.description2  Object of research: transient and harmonic fields in layered and nonlinear media, their reflection from conducting and dielectric objects, change of their time and spatial characteristics and interaction with electron spins. The purpose of the stage: To obtain solutions for transient electromagnetic fields generated by two independent sources in a nonlinear medium in quadratures. Estimation of possibilities of analytical approaches and artificial neural networks for recognition of objects in dielectric medium and characteristic forms of reflected impulses. Construction of a physical model of a nonlinear layered magnetic nanostructure. Based on the method of evolutionary equations the analytical solution of the problem of radiation of a plane disk with a given non-stationary current is applied to the problem of radiation of a LIRA lens antenna. The expressions for linear and nonlinear components of the radiated field at different distances from the antenna are obtained. The received dependences are illustrated by graphs, and their physical essence is analyzed. A study of the application of impulse ultra-wideband electromagnetic fields for the recognition of subsurface objects using artificial neural networks and pre-filtering by means of the latest digital methods, to build a positioning system for moving objects. The model of a single generator on a nonlinear magnetic nanostructure is built. The researches being carried out are valuable for construction of powerful impulse radiators of electromagnetic field, means of definition of the hidden subsurface objects, positioning systems of essentially new type and nanogenerators of millimeter range. Product Description popup.authors Akhmedov Rolan D. Persanov Ilya D Plakhtii Vadym A. Pochanin Gennadiy P Pryshchenko Oleksandr A. Cherkasov Denis V popup.nrat_date 2021-01-26 Close