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Sensors 2018, 18(1), 110; https://doi.org/10.3390/s18010110

A Monolithic Multisensor Microchip with Complete On-Chip RF Front-End

1
Department of Information Engineering, Infrastructure and Sustainable Energy (DIIES), “Mediterranea” University, Via Graziella Loc. Feo di Vito, 89124 Reggio Calabria, Italy
2
HWA srl-Spin Off dell’Università Mediterranea di Reggio Calabria, Via Reggio Campi II tr. 135, 89126 Reggio Calabria, Italy
*
Author to whom correspondence should be addressed.
Received: 9 November 2017 / Revised: 27 December 2017 / Accepted: 29 December 2017 / Published: 2 January 2018
(This article belongs to the Special Issue Integrated Sensors)
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Abstract

In this paper, a new wireless sensor, designed for a 0.35 µm CMOS technology, is presented. The microchip was designed to be placed on an object for the continuous remote monitoring of its temperature and illumination state. The temperature sensor is based on the temperature dependence of the I-V characteristics of bipolar transistors available in CMOS technology, while the illumination sensor is an integrated p-n junction photodiode. An on-chip 2.5 GHz transmitter, coupled to a mm-sized dipole radiating element fabricated on the same microchip and made in the top metal layer of the same die, sends the collected data wirelessly to a radio receiver using an On-Off Keying (OOK) modulation pattern. View Full-Text
Keywords: CMOS sensors; On-Chip-Antenna; LC oscillator; temperature sensor; light sensor; Internet of Things CMOS sensors; On-Chip-Antenna; LC oscillator; temperature sensor; light sensor; Internet of Things
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Merenda, M.; Felini, C.; Della Corte, F.G. A Monolithic Multisensor Microchip with Complete On-Chip RF Front-End. Sensors 2018, 18, 110.

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