Patent ID: 7864095

Claim:
A wave absorber comprising a structure which sequentially laminates a conduct layer which is composed of an electric conductor and reflects EM waves, a first dielectric layer composed of dielectric material in one layer or multiple layers, a high-resistance conductor layer which has a surface resistivity within a prescribed range and converts EM waves to heat, a second dielectric layer composed of dielectric material in one layer or multiple layers, and a pattern layer having multiple patterns composed of an electric conductor; wherein each pattern in said pattern layer differs in either or both of size and form relative to another adjacent pattern, the conduct layer reflects EM waves passed through the pattern layer, the second dielectric layer, the high-resistance conductor layer and the first dielectric layer, a resistivity of the high-resistance conductor layer is larger than a resistivity of the conduct layer, and a surface resistivity of the high-resistance conductor layer is in a range from 100 Î©/â–¡ to 100 kÎ©/â–¡.