ELECTROMAGNETIC WAVE ABSORPTION DEVICE WITH ADJUSTABLE FREQUENCY OF ABSORPTION

Electromagnetic wave absorbing device (10), and related manufacturing process, comprising an absorber element (20) made of a composite material comprising a polymeric matrix wherein electrically conductive and/or semiconductive microstructured and/or nanostructured fillers are dispersed, wherein one or more electrode layers comprising at least two electrodes (1A, 1B, 2A, 2B, 3A, 3B, 4A, 4B, 5C, 5D) are embedded, said at least two electrodes being physically separated from each other in at least one internal portion of the composite material, at least one generator of control electrical signals being connected to two electrodes (1A, 1B, 2A, 2B, 3A, 3B) selected from said at least two electrodes (1A, 1B, 2A, 2B, 3A, 3B, 4A, 4B, 5C, 5D).