RFID tag
US9171244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2012 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Sep 27, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/181
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Provided is an RFID tag, wherein a communication distance of several centimeter or more can be secured and the cost of which can be reduced in comparison to conventional on-chip antennas, even when being compact in size (square shaped with a side of 1.9 to 13 mm). The RFID tag (80) comprises an antenna (20), an IC chip (30) connected to the antenna (20), and a sealing material (10) that seals the IC chip (30) and the antenna (20). The antenna (20) is a coil antenna or a loop antenna, and the resonance frequency (f0) of an electric circuit constituted by the inductance (L) of the antenna (20) and the capacitance (C) of the IC chip (30) is equal to the operation frequency of the IC chip (30), or in the vicinity thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.