|
|
|
|
| LEADER |
01637nam a2200181Ia 4500 |
| 001 |
10.1038-s41467-022-29587-9 |
| 008 |
220706s2022 CNT 000 0 und d |
| 020 |
|
|
|a 20411723 (ISSN)
|
| 245 |
1 |
0 |
|a Double-layer geodesic and gradient-index lenses
|
| 260 |
|
0 |
|b Nature Research
|c 2022
|
| 856 |
|
|
|z View Fulltext in Publisher
|u https://doi.org/10.1038/s41467-022-29587-9
|
| 520 |
3 |
|
|a A double-layer lens consists of a first gradient-index/geodesic profile in an upper waveguide, partially surrounded by a mirror that reflects the wave into a lower guide where there is a second profile. Here, we derive a new family of rotational-symmetric inhomogeneous index profiles and equivalent geodesic lens shapes by solving an inverse problem of pre-specified focal points. We find an equivalence where single-layer lenses have a different functionality as double-layer lenses with the same profiles. As an example, we propose, manufacture, and experimentally validate a practical implementation of a geodesic double-layer lens that is engineered for a low-profile antenna with a compact footprint in the millimeter wave band. Its unique double-layer configuration allows for two-dimensional beam scanning using the same footprint as an extension of the presented design. These lenses may find applications in future wireless communication systems and sensing instruments in microwave, sub-terahertz, and optical domains. © 2022, The Author(s).
|
| 700 |
1 |
0 |
|a Chen, Q.
|e author
|
| 700 |
1 |
0 |
|a Fonseca, N.J.G.
|e author
|
| 700 |
1 |
0 |
|a Horsley, S.A.R.
|e author
|
| 700 |
1 |
0 |
|a Quevedo–Teruel, O.
|e author
|
| 700 |
1 |
0 |
|a Tyc, T.
|e author
|
| 773 |
|
|
|t Nature Communications
|
