@misc{10481/44989,
year = {2016},
url = {http://hdl.handle.net/10481/44989},
abstract = {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.},
publisher = {MDPI},
keywords = {Screen printing},
keywords = {Printed electronics},
keywords = {Passive RFID tag},
keywords = {Optical sensor},
keywords = {Microcontroller},
keywords = {Spectral fingerprint},
title = {Passive UHF RFID Tag for Multispectral Assessmen},
author = {Escobedo Araque, Pablo and Carvajal Rodríguez, Miguel Ángel and Capitán Vallvey, Luis Fermín and Fernández-Salmerón, José and Martínez Olmos, Antonio and Palma López, Alberto José},
}