Fabric-based RFID tags and methods of manufacture
US12380290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2022 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Sep 16, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10098
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed ae fabric-based radio frequency identification (RFID) tags and methods of manufacture. The method is characterized by forming a knitted fabric from at least one primary non-conductive fiber and a secondary conductive fiber, wherein the secondary conductive fiber is distributed within the knitted fabric to form a plurality of dipole antennas; integrating an RFID inlay with each of the plurality of dipole antennas to form pairs of inlays and antennas; and, cutting the knitted fabric to separate each of the pairs of inlays and antennas into individual RFID tags. The RFID inlay comprises an RFID integrated circuit (IC) and a loop antenna on a substrate; the RFID inlay is positioned on the fabric-based antenna such that the loop antenna is inductively coupled to a dipole antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.