RFID tags with power rectifiers that have bias
US7561866B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2005 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | May 1, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0701
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for generating a rectified signal in a RFID tag. An alternating signal is received by the RFID tag, and a first phase of the alternating signal is coupled to a gate and to a first non-controlling terminal of a first switching transistor. The non-controlling terminal of the first switching transistor is one of a source and a drain of the first switching transistor. A first bias voltage is applied between the first non-controlling terminal and the first gate of the first switching transistor and a rectified voltage is received between the first non-controlling terminal and a second non-controlling terminal of the first switching transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.