Compact microwave system for de-icing and / or preventing icing of the outer surface of cavity or shell structures exposed to meteorological influences

摘要

The invention relates to a microwave deicing system that gives off a monochromatic radiation in the 900 MHz to 20 GHz range and that is useful for deicing and/or preventing the icing of the outer surface of hollow or shell structures consisting of fiber composite materials such as glass-fiber reinforced plastic and carbon-fiber reinforced plastic, said outer surface being subject to meteorological influences. The system has a compact design and is mounted directly in such structures/chambers. The volumetric heating allows for the transport of sufficient thermal output to the surface of the structure and the casing renders the outer surface of the structure sufficiently impermeable to the microwaves. Since the efficiency of the inventive structure remains substantially below the delamination temperature, there are no problems with regard to the dimensional stability of the structure.