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P. Mendonça dos Santos, António J. Serralheiro, Beatriz Borges, João Paulo N. Torres and Ana Charas
This work studies two circuit topologies to step-up the voltage supplied by an organic photovoltaic (OPV) cell. Comparison and validation of the proposed topologies are accomplished throughout analytical, simulation, and experimental results. Two circuit...
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António Fernando Alves Carneiro, João Paulo N. Torres, António Baptista and Maria João M. Martins
In the present paper, a smart planar electrically steerable passive array radiator (ESPAR) antenna was developed and tested at the frequency of 1.33 GHz with the main goal to control the main radiation lobe direction, ensuring precise communication betwe...
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João Paulo N. Torres, Carlos A. F. Fernandes, João Gomes, Bonfiglio Luc, Giovinazzo Carine, Olle Olsson and P. J. Costa Branco
Solar concentrator photovoltaic collectors are able to deliver energy at higher temperatures for the same irradiances, since they are related to smaller areas for which heat losses occur. However, to ensure the system reliability, adequate collector geom...
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