Jonathan L. Herring was born in Middlesbrough, England, in 1966. He received the M.Eng. degree in Electrical & Electronic Engineering from the University of Nottingham, UK in 1989 and received the Ph.D degree from the same university in 1993. From July 1989 to October 1993 he was employed as a Research Assistant at the University of Nottingham, where he worked on the modelling of EMC problems using the transmission-line matrix (TLM) technique. In November 1993 he joined the Research Chair as a Post-Doctoral Fellow and is continuing work on development of the TLM method. He is a member of the IEEE and an associate member of the Institution of Electrical Engineers (IEE).