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0223U000821,
0121U111820
,
Microwave investigation of structured metamaterials as elements of modern sensor systems (SENSOR)
Polevoi Sergii Yu., Кандидат фізико-математичних наук
20-01-2023
O. Ya. Usikov Institute for Radiophysics and Electronics NAS of Ukraine
The research object is surface waves (plasmon-polaritons) propagating in two-layer hyperbolic metasurfaces in the microwave range. The goal of the project is to establish the nature of the influence of "structural" parameters, namely: the dispersion of permittivity for hyperbolic metasurface and the geometry of the unit cell on the propagation regime of surface waves. Also, the formulation of a recommended method and algorithm for working with hyperbolic metasurfaces in order to demonstrate the topological transition and the multidirectional regime of propagation of surface waves. In the second (final) stage of the project, the following was performed: using numerical simulation in the case of a planar metamaterial with hyperbolic properties, the possibility to control the propagation regime of spoof surface plasmon polaritons (SPPP) at a certain frequency was demonstrated. The influence of the mutual rotation of the structured elements on the propagation regime of the OPPP and the nature of the directional diagrams was determined by experimental measurements. It was shown how geometric parameters, periodicity violations or multiperiodicity influence on spectral characteristics of above-mentioned structures. In addition, it is shown how these parameters can be used to control the spectral characteristics of these structures. The possibility of adjusting the position of the transmittance peaks as a result of changing the material parameters for individual elements of the structured substrate is numerically demonstrated. It is shown that in the frequency range where the bandgaps of periodic structures with short and long periods overlap, a family of narrow peaks of the transmittance coefficient can appear. The possibility of reconfiguring the transmission peak frequency depending on the external magnetic field due to the presence of a magnetic component in the structured substrate is numerically demonstrated.
Ivzhenko Liubov I.
Liashenko Illia
Kharchenko Ganna O.
2023-01-20
Updated: 2025-12-26
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