RF Energy Harvester with Sub-threshold Step-up Converter - Archive ouverte HAL
Communication Dans Un Congrès Année : 2016

RF Energy Harvester with Sub-threshold Step-up Converter

Résumé

An UHF RF energy harvester with integrated stepup converter is presented. This system is designed to overcome the limits of standard RF harvesters (namely low output voltage). This objective is obtained with an extra DC/DC converter that provides an extra voltage boost, with less than 10 nW of power consumption. The accurate sub-threshold analysis of this converter allowed a start-up voltage as low as 200 mV, without compromising the overall power efficiency. The final system is intended to provide an output voltage high enough to power standard common loads (ex. microcontroller) and, more in general, any IoT wireless sensor node, with a limited amount of received power. This is confirmed by experimental results: an output voltage above 1.2 V is obtained starting from a received power of about -24 dBm. The step-up converter area is only 230 mu m x 375 mu m.
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Dates et versions

hal-01435229 , version 1 (13-01-2017)

Identifiants

  • HAL Id : hal-01435229 , version 1

Citer

Dino Michelon, Emmanuel Bergeret, Antonio Di Giacomo, Philippe Pannier. RF Energy Harvester with Sub-threshold Step-up Converter. 2016 IEEE INTERNATIONAL CONFERENCE ON RFID (RFID), 2016, Unknown, Unknown Region. pp.131-138. ⟨hal-01435229⟩
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