Received his MSc and PhD degree from Chalmers University, Göteborg, Sweden, in 1980 and 1986, respectively. He is since 1996 a Professor in High Speed Electronics at the Department of Microtechnology and Nanoscience, MC2, at Chalmers University. He is the head of the Microwave Electronics Laboratory leading a group of approximately 50 researchers in the area of high frequency semiconductor devices and circuits. His main research interests include foundry related MMIC designs for millimeterwave applications based on both III-V and silicon devices, SiC and GaN based transistors and circuits for high power applications, device modeling including noise and large-signal models for FET and bipolar devices, and InP-HEMT devices and circuits. He is working part-time at Ericsson AB as a microwave circuit expert. He is author/co-author of more than 350 refereed journal/conference papers, and holds 5 patents.