Film assembly and multilayer stack including antenna
US10740669B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2019 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Oct 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0776
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A film assembly or a multilayer stack can include an antenna having a spiral form disposed on a stretchable layer. The film assembly includes a stretchable substrate having opposite major top and bottom surfaces, and a first material disposed on the major top surface of the stretchable substrate in the form of a plurality of intersecting rows and columns making the film assembly less stretchable than the stretchable substrate. The rows and columns define a plurality of closed cells. An antenna for use in a radio frequency identification tag is disposed on the stretchable substrate in each closed cell and is isolated from the first material. The antenna includes an elongated electrically conductive electrode having a spiral form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.