RFID tag modification for full depth backscatter modulation
Abstract
A modulated backscatter radio frequency identification device includes a diode detector configured to selectively modulate a reply signal onto an incoming continuous wave; communications circuitry configured to provide a modulation control signal to the diode detector, the diode detector being configured to modulate the reply signal in response to be modulation control signal; and circuitry configured to increase impedance change at the diode detector which would otherwise not occur because the diode detector rectifies the incoming continuous wave while modulating the reply signal, whereby reducing the rectified signal increases modulation depth by removing the reverse bias effects on impedance changes. Methods of improving depth of modulation in a modulated backscatter radio frequency identification device are also provided.
- Inventors:
-
- Pasco, WA
- Richland, WA
- Issue Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1012817
- Patent Number(s):
- 7760073
- Application Number:
- 11/029,841
- Assignee:
- Battelle Memorial Institute (Richalnd, WA)
- Patent Classifications (CPCs):
-
G - PHYSICS G06 - COMPUTING G06K - RECOGNITION OF DATA
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Scott, Jeffrey Wayne, and Pratt, Richard M. RFID tag modification for full depth backscatter modulation. United States: N. p., 2010.
Web.
Scott, Jeffrey Wayne, & Pratt, Richard M. RFID tag modification for full depth backscatter modulation. United States.
Scott, Jeffrey Wayne, and Pratt, Richard M. Tue .
"RFID tag modification for full depth backscatter modulation". United States. https://www.osti.gov/servlets/purl/1012817.
@article{osti_1012817,
title = {RFID tag modification for full depth backscatter modulation},
author = {Scott, Jeffrey Wayne and Pratt, Richard M},
abstractNote = {A modulated backscatter radio frequency identification device includes a diode detector configured to selectively modulate a reply signal onto an incoming continuous wave; communications circuitry configured to provide a modulation control signal to the diode detector, the diode detector being configured to modulate the reply signal in response to be modulation control signal; and circuitry configured to increase impedance change at the diode detector which would otherwise not occur because the diode detector rectifies the incoming continuous wave while modulating the reply signal, whereby reducing the rectified signal increases modulation depth by removing the reverse bias effects on impedance changes. Methods of improving depth of modulation in a modulated backscatter radio frequency identification device are also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 20 00:00:00 EDT 2010},
month = {Tue Jul 20 00:00:00 EDT 2010}
}