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Understanding Electromagnetic Wave Absorbers

Different types of electromagnetic wave absorbers and their applications are discussed. The basic problem required to be solved in designing an absorber is presented before discussing different types of absorbers including smart absorber. The theory for performance analysis of a multilayered absorber is given. A simple experimental method to measure absorber performance and experimental result obtained for a multilayered absorber are discussed. In the end, permittivity and loss tangent data on some commercially available absorbers are given.