RT Journal Article
T1 Passive UHF RFID Tag for Multispectral Assessment.
A1 Escobedo, Pablo
A1 Carvajal, Miguel A
A1 Capitán-Vallvey, Luis F
A1 Fernández-Salmerón, José
A1 Martínez-Olmos, Antonio
A1 Palma, Alberto J
K1 microcontroller
K1 optical sensor
K1 passive RFID tag
K1 printed electronics
K1 screen printing
K1 spectral fingerprint
AB This work presents the design, fabrication, and characterization of a passive printed radiofrequency identification tag in the ultra-high-frequency band with multiple optical sensing capabilities. This tag includes five photodiodes to cover a wide spectral range from near-infrared to visible and ultraviolet spectral regions. The tag antenna and circuit connections have been screen-printed on a flexible polymeric substrate. An ultra-low-power microcontroller-based switch has been included to measure the five magnitudes issuing from the optical sensors, providing a spectral fingerprint of the incident electromagnetic radiation from ultraviolet to infrared, without requiring energy from a battery. The normalization procedure has been designed applying illuminants, and the entire system was tested by measuring cards from a colour chart and sensing fruit ripening.
YR 2016
FD 2016-07-14
LK https://hdl.handle.net/10668/26352
UL https://hdl.handle.net/10668/26352
LA en
DS RISalud
RD Apr 11, 2025