Paper Info
Title
A CMOS RF-Powered Tag with Sensing and Localization Capabilities
Abstract
This paper presents a battery-less CMOS integrated RF tag with sensing and localization capabilities. In order to allow tag addressing, communication, and localization by external readers, the IC performs a back-scattering modulation of a sequence of received UWB pulses according to specific spreading codes. For this purpose a UWB RF switch is designed and connected to the UWB antenna. The adoption of backscattering is integral to achieve ultra-low power wireless communication. The use of quasi-orthogonal spreading codes allows communication and localization with multiple tags at the same time. The IC includes a low-power sensing interface suitable for internal temperature sensing or external capacitive sensors. The power required for operation is scavenged from an UHF signal and converted by means of an internal RF rectifier and of a dynamically reconfigurable charge pump circuit. An on-chip micropower oscillator clocks a digital control circuit. The circuit is implemented in a 0.18 μm CMOS process. The architecture of the IC and preliminary test results are disclosed.
Year
DOI
Venue
2018
10.1109/CAMAD.2018.8514974
2018 IEEE 23rd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD)
Keywords
Field
DocType
backscattering,charge pump,CMOS,energy harvesting,low-power oscillators,RFID,UWB localization,sensors
Micropower,Computer science,Real-time computing,Capacitive sensing,Radio frequency,CMOS,Modulation,RF switch,Integrated circuit,Electrical engineering,Ultra high frequency
Conference
ISSN
ISBN
Citations 
2378-4865
978-1-5386-6152-9
0
PageRank 
References 
Authors
0.34
6
10
Name
Order
Citations
PageRank
Cinzia Tamburini100.34
Matteo Pizzotti200.34
Dini, M.371.71
Marco Crescentini400.68
Marco Tartagni5135.21
Aldo Romani6125.18
Federico Alimenti74411.65
marco virili8102.26
Mezzanotte, P.954.54
Luca Roselli10185.71