A battery-less, self-sustaining RF energy harvesting circuit with TFETs for μw power applications

David Cavalheiro; Francesc Moll; Stanimir Valtchev

doi:10.1109/NEWCAS.2016.7604751

A battery-less, self-sustaining RF energy harvesting circuit with TFETs for μw power applications

David Cavalheiro, Francesc Moll, Stanimir Valtchev

DEE - Departamento de Engenharia Electrotécnica e de Computadores

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

This paper proposes a Tunnel FET (TFET) power management circuit for RF energy harvesting applications. In contrast with conventional MOSFET technologies, the improved electrical characteristics of TFETs promise a better behavior in the process of rectification and conversion at ultra-low power (μW) and voltage (sub-0.25 V) levels. RF powered systems can not only benefit from TFETs in front-end rectifiers by harvesting the surrounding energy at levels where conventional technologies cannot operate but also in the minimization of energy required by the power management circuit. In this work we present an energy harvesting circuit for RF sources designed with TFETs. The TFET controller emulates an adequate impedance at the output of the rectifier in order to allow maximum transfer of power from the RF source to the input of the boost converter. The output load is activated once the output capacitor reaches a voltage value of 0.5 V. The results show an efficiency boost of 89 % for an output load consuming 1 μW with an available RF power of-25 dBm.

Original language	English
Title of host publication	14th IEEE International NEWCAS Conference, NEWCAS 2016
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
ISBN (Electronic)	9781467389006
DOIs	https://doi.org/10.1109/NEWCAS.2016.7604751
Publication status	Published - 20 Oct 2016
Event	14th IEEE International NEWCAS Conference, NEWCAS 2016 - Vancouver, Canada Duration: 26 Jun 2016 → 29 Jun 2016

Conference

Conference	14th IEEE International NEWCAS Conference, NEWCAS 2016
Country/Territory	Canada
City	Vancouver
Period	26/06/16 → 29/06/16

Keywords

Energy Harvesting
Power Management
Radio-Frequency
Tunnel FET
Ultra-Low Power

Access to Document

10.1109/NEWCAS.2016.7604751Licence: Unspecified

Cite this

@inproceedings{630f297633004aa8aa9d26837927a611,

title = "A battery-less, self-sustaining RF energy harvesting circuit with TFETs for μw power applications",

abstract = "This paper proposes a Tunnel FET (TFET) power management circuit for RF energy harvesting applications. In contrast with conventional MOSFET technologies, the improved electrical characteristics of TFETs promise a better behavior in the process of rectification and conversion at ultra-low power (μW) and voltage (sub-0.25 V) levels. RF powered systems can not only benefit from TFETs in front-end rectifiers by harvesting the surrounding energy at levels where conventional technologies cannot operate but also in the minimization of energy required by the power management circuit. In this work we present an energy harvesting circuit for RF sources designed with TFETs. The TFET controller emulates an adequate impedance at the output of the rectifier in order to allow maximum transfer of power from the RF source to the input of the boost converter. The output load is activated once the output capacitor reaches a voltage value of 0.5 V. The results show an efficiency boost of 89 % for an output load consuming 1 μW with an available RF power of-25 dBm.",

keywords = "Energy Harvesting, Power Management, Radio-Frequency, Tunnel FET, Ultra-Low Power",

author = "David Cavalheiro and Francesc Moll and Stanimir Valtchev",

note = "Sem PDF. The authors wish to acknowledge the support for this research, coming from the Portuguese funding institution FCT (Fundaca? para a Ci?ncia e a Tecnologia) and Spanish Ministry of Economy (MINECO) and ERDF funds through project TEC2013-45638-C3-2-R (Maragda).; 14th IEEE International NEWCAS Conference, NEWCAS 2016 ; Conference date: 26-06-2016 Through 29-06-2016",

year = "2016",

month = oct,

day = "20",

doi = "10.1109/NEWCAS.2016.7604751",

language = "English",

booktitle = "14th IEEE International NEWCAS Conference, NEWCAS 2016",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

}

Cavalheiro, D, Moll, F & Valtchev, S 2016, A battery-less, self-sustaining RF energy harvesting circuit with TFETs for μw power applications. in 14th IEEE International NEWCAS Conference, NEWCAS 2016., 7604751, Institute of Electrical and Electronics Engineers (IEEE), 14th IEEE International NEWCAS Conference, NEWCAS 2016, Vancouver, Canada, 26/06/16. https://doi.org/10.1109/NEWCAS.2016.7604751

A battery-less, self-sustaining RF energy harvesting circuit with TFETs for μw power applications. / Cavalheiro, David; Moll, Francesc; Valtchev, Stanimir.
14th IEEE International NEWCAS Conference, NEWCAS 2016. Institute of Electrical and Electronics Engineers (IEEE), 2016. 7604751.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - A battery-less, self-sustaining RF energy harvesting circuit with TFETs for μw power applications

AU - Cavalheiro, David

AU - Moll, Francesc

AU - Valtchev, Stanimir

N1 - Sem PDF. The authors wish to acknowledge the support for this research, coming from the Portuguese funding institution FCT (Fundaca? para a Ci?ncia e a Tecnologia) and Spanish Ministry of Economy (MINECO) and ERDF funds through project TEC2013-45638-C3-2-R (Maragda).

PY - 2016/10/20

Y1 - 2016/10/20

N2 - This paper proposes a Tunnel FET (TFET) power management circuit for RF energy harvesting applications. In contrast with conventional MOSFET technologies, the improved electrical characteristics of TFETs promise a better behavior in the process of rectification and conversion at ultra-low power (μW) and voltage (sub-0.25 V) levels. RF powered systems can not only benefit from TFETs in front-end rectifiers by harvesting the surrounding energy at levels where conventional technologies cannot operate but also in the minimization of energy required by the power management circuit. In this work we present an energy harvesting circuit for RF sources designed with TFETs. The TFET controller emulates an adequate impedance at the output of the rectifier in order to allow maximum transfer of power from the RF source to the input of the boost converter. The output load is activated once the output capacitor reaches a voltage value of 0.5 V. The results show an efficiency boost of 89 % for an output load consuming 1 μW with an available RF power of-25 dBm.

AB - This paper proposes a Tunnel FET (TFET) power management circuit for RF energy harvesting applications. In contrast with conventional MOSFET technologies, the improved electrical characteristics of TFETs promise a better behavior in the process of rectification and conversion at ultra-low power (μW) and voltage (sub-0.25 V) levels. RF powered systems can not only benefit from TFETs in front-end rectifiers by harvesting the surrounding energy at levels where conventional technologies cannot operate but also in the minimization of energy required by the power management circuit. In this work we present an energy harvesting circuit for RF sources designed with TFETs. The TFET controller emulates an adequate impedance at the output of the rectifier in order to allow maximum transfer of power from the RF source to the input of the boost converter. The output load is activated once the output capacitor reaches a voltage value of 0.5 V. The results show an efficiency boost of 89 % for an output load consuming 1 μW with an available RF power of-25 dBm.

KW - Energy Harvesting

KW - Power Management

KW - Radio-Frequency

KW - Tunnel FET

KW - Ultra-Low Power

UR - http://www.scopus.com/inward/record.url?scp=84998842272&partnerID=8YFLogxK

U2 - 10.1109/NEWCAS.2016.7604751

DO - 10.1109/NEWCAS.2016.7604751

M3 - Conference contribution

AN - SCOPUS:84998842272

BT - 14th IEEE International NEWCAS Conference, NEWCAS 2016

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 14th IEEE International NEWCAS Conference, NEWCAS 2016

Y2 - 26 June 2016 through 29 June 2016

ER -

A battery-less, self-sustaining RF energy harvesting circuit with TFETs for μw power applications

Abstract

Conference

Keywords

Access to Document

Other files and links

Fingerprint

Cite this