Investigation on the matching characteristics of EM-wave absorber mounted conductive patterns

摘要

From a viewpoint of effective use of a magnetic absorber, this paper proposes the new methods of changing the matching characteristics of EM-wave absorber. This EM-wave absorber is composed of the conductive frames that are periodically attached to the surface of absorber. These frames contribute to change the input admittance of an original absorber. This absorber is able to broadly change the matching frequency characteristic and gives a multi-peak matching characteristic. Matching mechanism is clarified through the theoretical investigation of input admittance using the FDTD method analysis.