ELECTROMAGNETIC WAVE ABSORBATION FILM AND ABSORBER WITH CONDUCTOR PATTERN FOR ABSORBING NEAR FIELD NOISE

摘要

The present invention relates to a conductor pattern absorption film of a uniform pattern formed by applying a frequency selective surface (FSS) technology; and an electronic noise absorption material which couples a composite magnetic sheet to the conductor pattern absorption film. The conductor pattern absorption film and the electronic noise absorption material bond a conductor pattern (meta structure), which shows an electronic noise absorption effect, to one surface and both surfaces of an absorption region in the frequency domain of 3 to 6 GHz by using LC resonance phenomena. The absorption region is limited in the frequency domain of 2 GHz or lower by only the existing magnetic material, thereby overcoming frequency limitations and absorbing an electronic noise occurring in the whole commercial band.