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Information × Registration Number 0221U107149, 0121U111820 , R & D reports Title Microwave investigation of structured metamaterials as elements of modern sensor systems (SENSOR) popup.stage_title Head Ivzhenko Liubov I., Кандидат фізико-математичних наук Registration Date 28-12-2021 Organization O. Ya. Usikov Institute for Radiophysics and Electronics NAS of Ukraine popup.description2  During the implementation of the first stage of the project was carried out: 1) numerical modeling of the process of PP propagation in planar hyperbolic metamaterial and the influence of mutual rotation of structured elements on the mode of PP propagation and the nature of radiation patterns in the microwave frequency range. Demonstrated the ability to control the mode of propagation of surface plasmon polaritons (PP) at the selected frequency; 2) phenomenological modeling of magnetic properties (magnetization, frequency-field dependence of the ferromagnetic resonance line) of nanoscale magnetic inclusions - a component of the metamaterial of the microwave range with which data on magnetic nanoinclusions (size, shape, ordering) can be obtained. When performing research work, the following results were obtained: - it is shown that in the case of planar hyperbolic metamaterial, the geometry of structural elements forms a strong anisotropy of dispersion dependences; - external control of the propagation mode of PP, in the form of mutual rotation of structured elements, leads to a sharp topological transformation of isofrequency circuits in the wave vector space in the scenario "elliptical-flat-hyperbolic"; - it is shown that the resonant field for the metamaterial (periodically located magnetic granules in the form of an ellipsoid are in the dielectric matrix) depends on the shape of the inclusions, size, magnetization; - there is a sharp increase or decrease in the resonant field when changing the shape of the granules from spherical to elongated along the magnetic field; - at increase of one of axes in more than five times in relation to two others insignificant change of a resonant field approximately 50-150 Oe was observed. Product Description popup.authors Kharchenko Ganna O. popup.nrat_date 2022-03-09 Close