He is current research interests are in high-performance and high-frequency analog integrated circuits for telecommunication systems, analog signal processing and power management CMOS techniques. Prof. Steyaert authored or co-authored over 950 papers in international journals or proceedings and co-authored over 31 books. He received among the first in Belgium an ERC-advanced grant for the design of CMOS mm-wave circuits, and received as first Belgium Engineering Science the Methusalem grant for the implementation of CMOS Power management circuits.