Hexagonal higher-symmetric dielectric periodic structures for planar graded-index lenses
نویسندگان
چکیده
We investigate dispersion properties of a hexagonal dielectric periodic structure that can be used to engineer graded-index lenses. The connection between the geometry and its symmetries is explained. Furthermore, we demonstrate with increased symmetry more isotropic than conventional counterpart. To validate our analysis, designed, manufactured, measured planar Luneburg lens antenna. antenna has neat fan-shaped beam from 23 31 GHz. results broadband operation could interest for design cost-effective antennas.
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2023
ISSN: ['1520-8842', '0003-6951', '1077-3118']
DOI: https://doi.org/10.1063/5.0150007