期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 69, 期 9, 页码 5653-5663出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2021.3060901
关键词
Metasurfaces; Magnetic susceptibility; Scattering parameters; Electromagnetic scattering; Tensors; Polarization; Antennas; Energy conservation; generalized sheet transition conditions (GSTCs); matching; metasurface; polarization conversion; susceptibility tensor; symmetry
资金
- European Research Council [ERC-2015-AdG-695206]
This paper provides a detailed discussion on the electromagnetic modeling and classification of polarization converting bianisotropic metasurfaces, exploring the relationship between the polarization effects of metasurfaces and their susceptibility model, scattering parameters, and structural symmetries.
We provide a detailed discussion on the electromagnetic modeling and classification of the polarization converting bianisotropic metasurfaces. To do so, we first present a general approach to compute the scattering response of such metasurfaces, which relies on a generalized sheet transition conditions (GSTCs)-based susceptibility model. Then, we review how the fundamental properties of reciprocity, energy conservation, rotation invariance, and matching may be expressed in terms of metasurface susceptibilities and scattering parameters, and show how these properties may affect and limit the polarization effects of metasurfaces. Finally, we connect together the metasurface susceptibility model to the structural symmetries of scattering particles and their associated polarization effects. This work thus provides a detailed understanding of the polarization conversion properties of metasurfaces and may prove to be of particular interest for their practical implementation.
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