The experiment is to use a combination of acrylic fiber and copper plus adding straw to create different spaces gauge, so the electromagnetic resonance line to make multiple reflection interference effects to enhance the absorption, with proofer, creating a flat fabric after adding straw to give space to form 3D three-dimensional fabric, ordinary copper wire & acrylic fiber (with reed) twist, the sharp rise in its value due to give dB relationship between spatial structure, so that this type of textile fabric form a 3D body, bringing the frequency interference of multiple reflections of fabric to improve the resonance.