What are wave-absorbing materials? How to choose wave-absorbing materials?

Wave-absorbing material, refers to a class of materials that can absorb or significantly attenuate the electromagnetic wave energy projected onto its surface, thereby reducing electromagnetic wave interference. Wave-absorbing materials can be divided into: rubber-based wave-absorbing materials, resin-based wave-absorbing materials, foam-based wave-absorbing materials. Wave-absorbing materials in the main application areas where