Paper Info
Title
Zero-Power Temperature Sensor for Wireless Harmonic Systems based on a Reflection-type Phase Shifter and a Bimorph Cantilever
Abstract
This work presents a passive temperature sensor, able to encode a temperature variation in a phase variation. This is achieved combining, for the first time, a reflection-type phase shifter and a bimorph cantilever. The sensor is intended to be part of a passive wireless harmonic transponder able to retrieve the sensor information from the phase difference between the signals re-transmitted in vertical and horizontal polarizations. The temperaturecontrolled phase shifter is firstly designed and modeled. Then, a prototype, working at 2 GHz, is manufactured assembling the bimorph cantilever with a planar microstrip circuit and tested. A phase difference of about 47° is observed for a temperature variation from 25°C to 50°C, showing the high sensitivity of the proposed device, which opens the door to a new class of passive phase-encoded sensors.
Year
DOI
Venue
2020
10.1109/WiSNeT46826.2020.9037619
2020 IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNeT)
Keywords
DocType
ISSN
bimorph cantilever,IoT,harmonic radar,phase shifter,phase shifter sensor,temperature sensor,wireless sensor
Conference
2330-7900
ISBN
Citations 
PageRank 
978-1-7281-3356-0
0
0.34
References 
Authors
2
4
Name
Order
Citations
PageRank
Federico Alimenti14411.65
Valentina Palazzi232.35
Mezzanotte, P.354.54
Roselli, L.4134.05