RADIO WAVE ABSORBER AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To realize radio wave absorber wherein manufacture is easy and loss of material can be reduced while a point narrow type is included for the point detail. SOLUTION: In the radio wave absorber 1, sheet type radio wave absorption material 3 is rolled and structure 2 is constituted. The radio wave absorption material 3 includes substrate and radio wave absorption material. The structure 2 includes a part for the point detail having the shape of a point narrow type which becomes so thin that an end by the propagating side of radio wave is approached. The radio wave absorption material 3 before being wound has an edge inclined to an axis of rotation when the absorption material 3 is rolled. COPYRIGHT: (C)2005,JPO&NCIPI