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@inproceedings{2368729,
author = {Chen, Qiao and Horsley, Simon A R and Fonseca, Nelson J G and Tyc, Tomáš and QuevedoandTeruel, Oscar},
address = {NEW YORK},
booktitle = {2023 17th European Conference on Antennas and Propagation (EuCAP)},
doi = {http://dx.doi.org/10.23919/EuCAP57121.2023.10133223},
keywords = {Double-layer lens; geodesic lens; gradient index; fully metallic; PPW; lens antennas; metasurfaces; millimeter waves; sub-THz},
howpublished = {tištěná verze "print"},
language = {eng},
location = {NEW YORK},
isbn = {978-1-6654-7541-9},
pages = {1-5},
publisher = {IEEE},
title = {A General Solution for Double-Layer Gradient-Index and Geodesic Lenses with Rotational Symmetry},
url = {https://ieeexplore.ieee.org/document/10133223},
year = {2023}
}
TY - JOUR
ID - 2368729
AU - Chen, Qiao - Horsley, Simon A R - Fonseca, Nelson J G - Tyc, Tomáš - Quevedo-Teruel, Oscar
PY - 2023
TI - A General Solution for Double-Layer Gradient-Index and Geodesic Lenses with Rotational Symmetry
PB - IEEE
CY - NEW YORK
SN - 9781665475419
KW - Double-layer lens
KW - geodesic lens
KW - gradient index
KW - fully metallic
KW - PPW
KW - lens antennas
KW - metasurfaces
KW - millimeter waves
KW - sub-THz
UR - https://ieeexplore.ieee.org/document/10133223
N2 - A double-layer lens consists of a pair of rotationally symmetric index profiles or geodesic lens shapes connected by a reflecting mirror partially covering their common periphery. Such a lens can provide a focus in each layer, and a wave travelling between the foci explores both layers. Here, we concentrate on the case with one layer being homogeneous or flat, and derive a general solution for the lens profiles by solving a Luneburg-like inverse problem with pre-specified foci inside or outside the lens, and different background indices in two layers. We demonstrate four examples of interest in ray-tracing plots. These lenses may find application in communications, sensing, and imaging from millimeter waves up to the optical bands.
ER -
CHEN, Qiao, Simon A R HORSLEY, Nelson J G FONSECA, Tomáš TYC and Oscar QUEVEDO-TERUEL. A General Solution for Double-Layer Gradient-Index and Geodesic Lenses with Rotational Symmetry. In \textit{2023 17th European Conference on Antennas and Propagation (EuCAP)}. NEW YORK: IEEE, 2023, p.~1-5. ISBN~978-1-6654-7541-9. Available from: https://dx.doi.org/10.23919/EuCAP57121.2023.10133223.
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