Publicou 12 edições por ano
ISSN Imprimir: 0040-2508
ISSN On-line: 1943-6009
Indexed in
AN EXPERIMENTAL TECHNIQUE FOR ESTIMATING CONSTITUTIVE PARAMETERS OF CHIRAL MEDIA IN THE MILLIMETER WAVELENGTH RANGE
RESUMO
Chiral structures can be successfully used for modeling processes of interaction of electromagnetic waves with various composite media (from isotropic to bianisotropic ones). Structure of the kind may prove to be rather promising for the design of compact-size microwave devices. However, the amount of experimental investigations of the chiral structures in the millimeter wavelength range, which is one of the most important today for practical implementation, proves to be obviously insufficient. The paper presents techniques for experimentally estimating the effective constitutive parameters of chiral media in the millimeter wavelength range. The main attention is focused on the experimental investigation of polarization properties of the chiral media. The Faraday rotation angle for the electromagnetic wave transmitted through the bulk chiral structure under investigation consisting of a set of 2D chiral structures is analyzed in dependence on frequency. Frequency dependences of the chiral parameter are calculated for several values of the structure thickness. It is shown that the Faraday rotation angle of the transmitted electromagnetic wave and the chirality parameter can be both controlled through changing the structure thickness. The frequency dependence of the real part of the chirality parameter is determined experimentally using two techniques and the results obtained are compared. A qualitative agreement between the results obtained by the two techniques is observed within the frequency range corresponding to the maximum of the absolute value of the chirality parameter. The results of the study can be useful for designing various telecommunication devices, including filters, polarizers and undirectional couplers.
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Polevoy S. Yu., Tarapov S. I., Chiral properties of bulk metamaterial with metallized polylactide helical elements, 2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW), 2016. Crossref