Mobile unit for wooden supports microwave vacuum drying and impregnation

The mobile unit for wooden support impregnation is described. Unit utilizes microwave vacuum drying process for achieving of good impregnation. Impregnation is performed inside small size cylindrical autoclave which is mounted on the wooden log. For regular distribution of microwave power inside autoclave the spreading system is used which consists of six waveguide slot radiators. It is shown by electromagnetic simulation that such a system provides a regular power loss density distribution over impregnated log and guarantees low reflection coefficient.