本實驗將錐型螺旋銅線置入不飽和聚酯樹脂，將其製作成一複合板材。銅線圈數分別為5、10、15、20、25圈，間距分別為1、1.5、2cm，各別探討其電磁波吸收效果，反面錐型螺旋線圈因上方圈數大，入射波範圍較大，隨著圈數增加，電磁波吸收效果較佳，有足夠的立體空間讓入射之電磁波在銅線內部範圍進行多重反射及干涉共振運動，使波與波間之能量相互抵消，此電磁波吸收體能達到最佳吸收效果41.9dB。

This experiment will unsaturated polyester resin in conical spiral copper wire, making it into a composite sheet. Copper Coils respectively 5, 10, 15, 20, 25, spacing respectively, 1.5, discuss their respective 2cm, electromagnetic wave absorption effect, reverse tapered helical coils from above, when the electromagnetic wave incident can cover more incident wave, with the rise in the number of turns, electromagnetic wave absorption effect better, there is enough room for the incidence of 3-d electromagnetic waves in copper internal reflection and carried out a campaign, the interference of resonant electromagnetic wave absorption physical best absorption effect 41.9dB.