Device for detecting identification elements with relaying metasurface(s), for a system
US12009594B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2020 |
| Grant date | Jun 11, 2024 |
| Priority date | — |
| Expiry date | Jul 6, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/0066
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A detection device (DD) is fitted in a system (S) comprising a closed space (EF) with a metallic environment and comprising objects (O) provided with wave-transmitting/receiving identification elements. Said device (DD) comprises an identification reader (LI) which exchanges messages with the identification elements (EI) via a wave-transmitting/receiving antenna (AER), which reader is installed inside the closed space (EF), in order to detect the presence of said waves, and a metasurface (MS1) installed inside the closed space (EF) and configured so as to reflect, according to a first chosen law, waves which originate from the antenna (AER) and are intended for the identification elements (EI) and, according to a second chosen law, waves which originate from the identification elements (EI) and are intended for the antenna (AER).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.