Open AccessАнализ поглощающих периодических структур, образованных цилиндрическими электромагнитными черными дырами
Author(s) -
Я.И. Чижевская,
О.Н. Смольникова,
С.П. Скобелев
Publication year - 2021
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2021.02.50369.191-20
Subject(s) - wedge (geometry) , refractive index , polarization (electrochemistry) , scattering , optics , physics , geometry , mathematics , mathematical analysis , chemistry
A 2D problem of electromagnetic plane wave scattering by 1D-periodic structures composed of cylindrical black holes arranged on a semi-infinite substrate is considered. Two algorithms corresponding to the cases of E- and H-polarization and based on the hybrid projection method accounting for the refractive index profiles in the black holes of a few types are developed. The algorithms are generalized also on the case of arrangement of the black holes on a PEC screen. A number of numerical results characterizing both the effectiveness of the algorithms themselves and performance of the absorbing structures with black holes are presented. Absorbing characteristics of the indicated structures are compared to the similar characteristic obtained for the structures of wedge elements.