Impedance-change mitigation in RFID tags
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United States of America Patent
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Feb 6, 2018
Issued Date -
N/A
app pub date -
Jun 24, 2016
filing date -
Jun 26, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Embodiments are directed to mitigating power-based impedance changes in Radio Frequency Identification (RFID) tags. The intrinsic impedance of components in an RFID tag front-end may change as incident RF power on the tag changes, causing the input impedance of the front-end to change and altering the RF properties of the RFID tag. A number of approaches can be used to mitigate input impedance variations due to power variations. One approach involves adjusting the operating point of one or more components in the RFID tag front-end to change their intrinsic impedances so as to counteract or mitigate the RF-power-based input impedance variation.
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Cited Art Landscape
Patent Citation Ranking
- 19 Citation Count
- G06K Class
- 86.47 % this patent is cited more than
- 7 Age
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