dc.contributor
Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.contributor
Universitat Politècnica de Catalunya. Doctorat en Enginyeria Electrònica
dc.contributor
Universitat Politècnica de Catalunya. e-CAT - Circuits i Transductors Electrònics
dc.contributor.author
Gasulla Forner, Manuel
dc.contributor.author
Ripoll Vercellone, Edgar
dc.contributor.author
Reverter Cubarsí, Ferran
dc.date.issued
2019-04-06
dc.identifier
Gasulla, M.; Ripoll, E.; Reverter, F. A compact Thévenin model for a rectenna and its application to an RF harvester with MPPT. "Sensors", 6 Abril 2019, vol. 19, p. 1641:1-1641:14.
dc.identifier
https://hdl.handle.net/2117/174259
dc.identifier
10.3390/s19071641
dc.description.abstract
This paper proposes a compact Thévenin model for a rectenna. This model is then applied to design a high-efficiency radio frequency harvester with a maximum power point tracker (MPPT). The rectenna under study consists of an L-matching network and a half-wave rectifier. The derived model is simpler and more compact than those suggested so far in the literature and includes explicit expressions of the Thévenin voltage (Voc) and resistance and of the power efficiency related with the parameters of the rectenna. The rectenna was implemented and characterized from -30 to -10 dBm at 808 MHz. Experimental results agree with the proposed model, showing a linear current–voltage relationship as well as a maximum efficiency at Voc/2, in particular 60% at -10 dBm, which is a remarkable value. An MPPT was also used at the rectenna output in order to automatically work at the maximum efficiency point, with an overall efficiency near 50% at -10 dBm. Further tests were performed using a nearby transmitting antenna for powering a sensor node with a power consumption of 4.2 µW.
dc.description.abstract
Peer Reviewed
dc.description.abstract
Postprint (published version)
dc.format
application/pdf
dc.publisher
Multidisciplinary Digital Publishing Institute (MDPI)
dc.relation
https://www.mdpi.com/1424-8220/19/7/1641
dc.relation
info:eu-repo/grantAgreement/SPAIN/MINECO/TEC2016-76991-P
dc.rights
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights
Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.subject
Àrees temàtiques de la UPC::Enginyeria elèctrica
dc.subject
Photovoltaic power systems--Automatic control
dc.subject
Power electronics
dc.subject
Electric current converters
dc.subject
Thévenin model
dc.subject
Maximum power point tracking
dc.subject
L-matching network
dc.subject
Electrònica de potència
dc.subject
Convertidors de corrent elèctric
dc.title
A compact Thévenin model for a rectenna and its application to an RF harvester with MPPT
