Wonhoon Jang, Nelson V. Silva, Arnaldo S. R. Oliveira, Nuno Borges Carvalho, “Analysis on in-band distortion caused by switching amplifiers”, IET Microwaves, Antennas & Propagation, October 2013.
André Prata, Nuno Borges Carvalho, Arnaldo S. R. Oliveira, “An Agile Digital Radio System for UHF White Spaces”, IEEE Microwave Magazine, January 2014, vol. 15, nº 1.
