RFID reader with automatic tuning
US11429831B2 · kind B2 · utility
0Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2018 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Mar 24, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J2200/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An RFID reader, tuning method and computer readable medium. A carrier signal is transmitted. A plurality of feedback signals produced in the RFID reader are measured when transmitting the carrier signal with a variable matching network set at a plurality of impedance values that are different from one another. It is determined which impedance value of the plurality of impedance values produced a feedback signal having a highest level of the plurality of feedback signals. The variable matching network is set to the determined impedance value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.