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Information × Registration Number 0221U101696, 0118U002021 , R & D reports Title Radiation and receiving of the harmonic and pulsed electromagnetic fields by the antennas of magnetic and electric types with local magnetic and dielectric inhomogeneities. popup.stage_title Head Liakhovskyi Anatolii F, Registration Date 24-01-2021 Organization V.N. Karazin Kharkiv National University popup.description2  The purpose of the work is to develop mathematical models of excitation, scattering by slot and slot-vibrator radiators containing local dielectric inhomogeneities, to improve the characteristics of diffraction fields of radiators and to create new types and systems with adjustable energy characteristics. Development of a method for measuring the effective magnetic permittivity of ferrite rods and optimization of all parameters of the receiving antenna of pulsed radio electronic systems. The problems of excitation and scattering of the electromagnetic field are solved: by a longitudinal slot cut in the wide wall of a rectangular waveguide, which has a multilayer filling with dielectrics and their systems, systems with magneto-dielectric filling of slots; a transverse slot at the end of the waveguide, which has a dielectric insert and connects the electrodynamic volumes - the waveguide-external dielectric medium; combined slot-vibrator emitters with monopoles having a distributed surface impedance and located both outside and inside the waveguide and their systems. The problem of excitation by a magnetic current of a waveguide filled with an anisotropic dielectric for the case of transverse anisotropy is solved; the problem of connection of electrodynamic volumes (waveguide-waveguide, waveguide-resonator, waveguide-external environment) through a narrow transverse slot, which has a partial filling with dielectric; the problem of the interaction of NSS pulses of electromagnetic fields without a carrier with a ferrite cylinder. A new method for measuring the effective magnetic permittivity of ferrite rods of arbitrary size and arbitrary cross section has been developed. An installation for its measurement in a new way has been created. On the basis of the solved problems methods and algorithms of calculation are created, numerical and experimental researches of characteristics of radiating structures are carried out. Product Description popup.authors Berdnik Sergey L. Blinova Nataliya K Dumin Oleksandr M. Katrich Viktor О Kiyko Viktor I. Lyakhovsky Andriy A Masalov Serhii O. Nesterenko Mikhail V. Ogurtsova Tetiana M. Pshenichnaya Svetlana V. Selutin Andrii V Yatsuk Ludmyla P popup.nrat_date 2021-01-24 Close