Gian Guido Gentili was born in Torino in 1961. He graduated in Electronics Engineering at the Politecnico di Milano in 1987 with a thesis on Mode-matching techniques for planar circuits (advisor prof. G. B. Stracca). In 1988-89 he was granted a scholarchip and cooperated with the Microwave Group, Dip. Elettronica, Politecnico di Milano.
At the end of 1989 he became a CNR researcher. In 2001 he became a senior CNR researcher. In 2002 he became an Associate Professor at the Politecnico di Milano. His research interests concern the field of numerical methods for electromagnetics and passive microwave circuits.