Radio frequency identification tag and antenna for radio frequency identification tag
US8174390B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2008 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Mar 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/045
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An RFID tag attached to an object and transmitting a signal that corresponds to identification information includes an RFID tag chip that modulates the signal according to the identification information and an RFID tag antenna that transmits the modulated signal. The RFID tag antenna includes a dielectric material, a radiating patch, and a slit. The dielectric material has a polyhedral shape and includes a first surface that contacts the object and a second surface that is parallel with the first surface, the radiating patch is formed on at least a part of the second surface and radiates electromagnetic to waves, and the slit is formed on at least a part of the radiating patch to expose the dielectric material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.