Contributo in atti di convegno, 2017, ENG

Optimal matching between optical rectennas and harvester circuits

C. Di Garbo, P. Livreri, G. Vitale

Dipartimento di Energia, ingegneria dell'Informazione e modelli Matematici (DEIM) Università degli Studi di Palermo, Viale delle Scienze, Ed. 9, 90128 Palermo (Italy) Istituto di Studi sui Sistemi Intelligenti per l'Automazione (ISSIA), Consiglio Nazionale delle Ricerche (CNR), Via Dante Alighieri, n. 12 - 90141 Palermo (Italy)

This paper deals with optimal coupling issues between rectennas and harvesting circuits. An optical rectenna consists of a nanoantenna usually coupled with an ultra-high speed rectifier. These devices aim to receive and convert solar and thermal radiation in a DC voltage, then a harvester circuit provides the energy to be stored. The rectenna impedance is influenced both by its structure and by the rectifying diode, the harvester circuit impedance has to be matched to optimize the power transfer. The purpose of this contribution is to discuss the best impedance conditions taking into account the constraints due to each device composing the conversion system. Finally, a cases study is presented.

17th IEEE International Conference on Environment and Electrical Engineering, Milano (Italy), 06/06/2017-09/06/2017

Keywords

nanoantenna, rectenna, energy harvesting, impedance matching

CNR authors

Vitale Gianpaolo

CNR institutes

ISSIA – Istituto di studi sui sistemi intelligenti per l'automazione