Summary
International Symposium on Electromagnetic Compatibility
2009
Session Number:24P1
Session:
Number:24P1-4
A New Composite Absorbing Material-Metamaterial Featuring Strong Synergistic Effect
A. A. Vogt, H. A. Kolodziej, A. E. Sowa,
pp.737-740
Publication Date:2009/7/20
Online ISSN:2188-5079
Summary:
Powdered magnetic absorbing materials are necessary components of elastic, plastic or liquid absorbing composites. These materials have significantly worse magnetic parameters than solid materials do. Finally, absorbers made of such composites have a worse absorbing capacity than those made of solid materials. In the paper, the authors describe absorbing composites of their own design. These composites constitute a family of new metamaterials featuring a strong synergistic effect on magnetic material parameters and a considerably better attenuation factor in comparison to classical materials containing magnetic powder. Magnetic and dielectric characteristics of the metamaterials can be programmed and optimized in a broad frequency range. The characteristics of absorbers containing these metamaterials are essentially better than the characteristics of standard absorbers in many applications. Examples of absorbers utilising ferrite as a magnetic material are presented. Key words: electromagnetic absorbing material, composite absorbing material, metamaterial, synergist.