▎ 摘　　要

NOVELTY - Absorbing patch/hard substrate adhesive composite structure comprises a rigid substrate as a base material and an absorbing patch distributed with multiple glue holes, and absorbing patch is pasted on the hard substrate. USE - Absorbing patch/hard substrate adhesive composite structure. ADVANTAGE - The absorbing patch/hard substrate adhesive composite structure comprises has characteristics of high adhesive strength and good conformability, easy to control the pasting process, and the thickness and uniformity of adhesive layer are controlled while taking into account the microwave absorbing performance, thus the absorbing performance is excellent and easy to control. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a wave-absorbing patch/hard substrate adhesive composite structure, which involves grinding the surface of hard substrate as the base material and the surface of wave-absorbing patch, as the sticking surface, smooth and smooth without protruding foreign matter, and cleaning the sticking surface with absolute ethanol, cutting the absorbing patch, size of the absorbing patch larger than the hard substrate, laying the wave absorbing patch on rigid foam, and using a drill bit to drill through, applying adhesive uniformly on the sticking surface of wave absorbing patch and sticking surface of the hard substrate, and sticking the sticking surface to obtain the composite structure to be cured, laying the composite structure to be cured flat, covering it with non-porous film and air felt, encapsulating it with a vacuum bag, drawing a vacuum, and releasing the pressure after the adhesive cured, cutting off the excess absorbing patch of cured composite structure, and sanding off the excess glue overflowing from the glue outlet of the absorbing patch to obtain the absorbing patch/hard substrate adhesive composite structure.