Ari Sihvola was born on October 6, 1957, in Valkeala, Finland. He received the engineer in 1981, Licentiate of Technology in 1984, and Doctor of Technology degrees in 1987, all in Electrical Engineering, from the Helsinki University of Technology (HUT), Finland, in 1981, 1984, and 1987, respectively. In addition to working with HUT and the Academy of Finland, he was a Visiting Engineer with the Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, in 1985–1986. In 1990–1991, he was a Visiting Scientist with The Pennsylvania State University, State College. In 1996, he was a Visiting Scientist with Lund University, Sweden. During 2000–2001 he was a Visiting Professor with the Electromagnetics and Acoustics Laboratory, Swiss Federal Institute of Technology, Lausanne. He is a Professor of electromagnetics at Aalto University with interest in electromagnetic theory, complex media, materials modeling, remote sensing, and radar applications. He is Chairman of the Finnish National Committee of the International Union of Radio Science (URSI). He is Fellow IEEE. He received a five-year Finnish Academy Professor appointment 2005-2010.