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Information × Registration Number 0222U001379, 0121U109883 , R & D reports Title Investigation of the transmitting and receiving electrodynamic structures of multipurpose radio-electronic systems popup.stage_title Head Nesterenko Mykhailo V., Доктор фізико-математичних наук Registration Date 26-01-2022 Organization V.N. Karazin Kharkiv National University popup.description2  The purpose of the stage: the construction of a mathematical model and solving the problem of excitation of electromagnetic waves by the impedance vibrator in unlimited space, over flat and angular screens of finite size, development of the approach to research and mathematical modeling of rectennnas. The numerical-analytical solution of the problem in a thin-wire statement for the impedance vibrator with local asymmetric excitation located in specific electrodynamic volumes is obtained. Based on the optimization modeling, the design of the impedance antenna will be carried out, which is characterized by three resonant frequencies located in the standard bands for mobile wireless communication (GSM 900, GSM 1800 and WiMAX). Based on the new solutions of nonlinear electrodynamic problems a systematic approach to rectenna design was created in which the reception of energy of electromagnetic radiation and its conversion into DC energy is considered as a single process. This allows a comprehensive analysis of nonlinear effects that occur in such structures and create antennas-converters (rectennas) with optimal characteristics depending on the conditions and modes of their operation. Two approaches to the creation of the ultrawideband impulse receiving ferrite antenna have been developed, and on this basis the experimental antenna sample has been developed, which is optimized in terms of sensitivity and bandwidth for use in subsurface probing radars with nanosecond pulsed probing signals. Unlike existing ultrawideband impulse receiving antennas, ferrite antennas will have much smaller dimensions and weight. as well as much better opportunities for their integration into the antenna system of the radar and the use of digital signal processing using additional spatio-temporal filters and advanced algorithms for extracting target data. Product Description popup.authors Antonenko Yevhenii O. Berdnyk Serhii L. Gomozov Andriy V. Hretskykh Dmytro V. Dumin Oleksandr M. Katrych Viktor О. Ogurtsova Tetiana M. Pochanin Hennadiy P. popup.nrat_date 2022-03-09 Close