Abstract :
The International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter, and Sub-Millimeter Waves (MSMW) is now a well-known event, which is conducted regularly once every three years. This Symposium has a long history. In fact, the MSMW Symposium grew from a series of conferences on millimeter and sub-millimeter waves that were held from time to time in the USSR since 1974 in the Russian language. These conferences played an important role for research and development in these wavelength ranges. At that time, they were the only widely available forum that was attended by the leading scientists and engineers of the involved organizations from all over the USSR. It must be admitted that then, mm-wave research and development was considered a sensitive defense-related area, and the conferences were usually supervised by defense or double-purpose ministries of the USSR. A number of mm-wave radar, propagation, and communication projects were performed for the military. Sub-mm research and development was in fact concentrated around development of multi-channel interferometers-polarimeters, particularly for hot-plasma diagnostics in Tokomak nuclearfusion machines.