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Information × Registration Number 0222U001415, 0119U002522 , R & D reports Title Investigation of multielement radiating electrodynamic structures and two-dimensional antenna arrays with nonlinear and impedance elements. popup.stage_title Head Registration Date 27-01-2022 Organization V.N. Karazin Kharkiv National University popup.description2  The object of research is physical processes in emitting multielement equidistant and nonequidistant electromagnetic structures with nonlinear elements and two-dimensional vibrator arrays with controllable directivity characteristics. The aim of the work is the development of numerical and analytical methods for solving limiting problems of electrodynamics with nonlinear limiting conditions for multi-element emitting structures with arbitrary types (electric, magnetic, electromagnetic) emitters, their geometric and electrodynamic parameters, interrelation and location; building on their basis mathematical models of emitting structures with nonlinear elements; effective multi-parameter modeling to determine the physical properties of emitting structures, taking into account nonlinear effects; substantiation of the possibility of creating vibrator emitting structures with non-mechanical control of their directional characteristics on the basis of physically adequate and mathematically correct modeling. A new type of constructive synthesis of antenna arrays has been developed - the method of impedance synthesis. Analytical formulas are obtained that make it possible to directly calculate the value of the impedances of each of the vibrator elements of antenna arrays and the parameters of the magnetodielectric filling of the slotted elements, which make it possible to direct the maximum of the antenna pattern in a given direction. An approach to the construction of systems for wireless transmission of energy by a focused microwave beam to hard-to-reach objects is substantiated, which differs from the traditional use of a transmitting focused multi-position emitter system. The technique of constructive synthesis of multi-position radiator system has been improved, the use of which, in contrast to the known ones, makes it possible to determine both the coordinates of the location of the emitters and the characteristics of their excitation. Product Description popup.authors Berdnyk Serhii L. Gomozov Andriy V. Hretskykh Dmytro V. Dumin Oleksandr M. Katrych Viktor О. Nesterenko Mikhail V Pshenichnaya Svetlana V. popup.nrat_date 2022-03-09 Close