The 11th International Conference on Mathematical Methods in Electromagnetic Theory (MMET*06) was organized and sponsored by the IEEE AP-S East Ukraine Joint Chapter at the Kharkiv National University, Kharkiv, Ukraine, june 26-29, 2006. The objective of the conference was to provide an environment for the efficient exchange of research ideas and results, and for the emergence of new friendships and international collaborations across wide range of electromagnetic modeling techniques and applications, as well as to encourage and motivate the young scientists and students in the region.