From 1989 to 1993 I worked in the Numerical Modelling Group, Department of Electrical & Electronic Engineering, University of Nottingham, under the supervision of Professor Christos Christopoulos. This research was concerned with using TLM to model EMC systems.

From 1993 to 1996 I was a post-doctoral fellow with the NSERC/MPR Teltech Research Chair in RF Engineering, Department of Electrical & Computer Engineering, University of Victoria, British Columbia, Canada, working for Professor Wolfgang Hoefer. This research was mainly involved with the application of the TLM method to microwave devices, in particular the accurate modelling of edges and corners. I was also involved in modelling the drying of softwood lumber in a full-scale pilot plant for a wood drying kiln exploiting a combination of radio-frequency heating and vacuum drying technologies.