Remembering Gianni Tofani: Numerical analysis of radio-astronomy devices

I first met Gianni Tofani about twenty years ago, in 1995, and since then an intense scientific collaboration activity and an important friendship began. Having an engineering degree earned in Pisa, he always favored the collaboration between Italian radio astronomy and engineering. Since then, Gianni held a series of monographic seminars within my course on “Antenna Systems” at the School of Engineering of the University of Florence (Figure 1). This led to numerous theses at both the masters and doctoral levels in the field of radio astronomy.