Transparent electromagnetic wave focusing device
US12249764B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2023 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Jul 26, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/246
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transparent electromagnetic wave focusing device is provided, which includes a plurality of metamaterial unit cells arranged to form a metamaterial array plate, and each metamaterial unit cell includes a plurality of metal layers and a plurality of transparent substrates stacked alternately. Each of the metal layers has a comb-tooth pattern, and the plurality of metamaterial unit cells correspond to a plurality of comb-tooth pattern combinations, respectively. The metamaterial array plate has an incident surface and an exit surface opposite to each other, and for an incident electromagnetic wave with a predetermined operating frequency band incident from the incident surface, the metamaterial unit cells correspond to a plurality of compensation phase differences, such that the incident electromagnetic wave that passes through the exit surface are focused on a reference point. The comb-tooth pattern combinations vary with the corresponding compensation phase differences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.