Carrier with antenna for radio frequency identification
US6340932B1 · kind B1 · utility
276Cited by
20References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2000 |
| Grant date | Jan 22, 2002 |
| Priority date | — |
| Expiry date | Jun 27, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q23/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A carrier, as used for example to transport several radio frequency identification devices, includes a circuit having an antenna and a series capacitor for tuning the antenna. Enhanced transceiver communication results when transceivers are placed in the carrier. Alternately, a carrier may include first and second antenna circuits, each having a capacitor for tuning the respective antenna. The two circuits may cooperate so that energy received in a first pattern is re-radiated in a second pattern for further enhanced transceiver communication, such as detection of the presence of the RFID device within the carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.