Title :
Maximizing DC power in energy harvesting circuits using multisine excitation
Author :
Boaventura, Alírio Soares ; Carvalho, Nuno Borges
Author_Institution :
Dept. de Electron., Telecomun. e Inf., Univ. de Aveiro, Aveiro, Portugal
Abstract :
This paper presents an approach to signal excitation specially designed to improve the DC power obtained in a RF to DC converter and consequently its RF-DC efficiency conversion. In this sense a multisine signal is used as the excitation, and it is proved either theoretically, by simulations and by measurements, that a multisine signal with 0° phase relationship between the tones can give better DC values in an energy harvester, when compared with a single tone excitation with the same input average power.
Keywords :
energy harvesting; power convertors; DC power; RF-DC efficiency conversion; energy harvesting circuits; multisine excitation; multisine signal; signal excitation; single tone excitation; Detectors; Energy harvesting; Gain; Power measurement; Radio frequency; Radiofrequency identification; Schottky diodes; Conversion efficiency; Energy Harvesting; Multi-tone signals; Nonlinear behavior; Schottky Diode detectors;
Conference_Titel :
Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-61284-754-2
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2011.5972612
