Abstract
Broadening the bandwidth of electromagnetic wave absorbers has greatly challenged material scientists. Here, we propose a two-layer hybrid absorber consisting of a non-planar metamaterial (MM) and a magnetic microwave absorbing material (MAM). The non-planar MM using magnetic MAMs instead of dielectric substrates shows good low frequency absorption and low reflection across a broad spectrum. Benefiting from this and the high frequency strong absorption of the MAM layer, the lightweight hybrid absorber exhibits 90% absorptivity over the whole 2-18 GHz range. Our result reveals a promising and flexible method to greatly extend or control the absorption bandwidth of absorbers. (C) 2014 AIP Publishing LLC.
Keywords
SURFACE, DESIGN, MODELS, IRON
DOI
10.1063/1.4862262
Date of this Version
1-13-2014
Recommended Citation
Li, Wei; Wu, Tianlong; Wang, Wei; Guan, Jianguo; and Zhai, Pengcheng, "Integrating non-planar metamaterials with magnetic absorbing materials to yield ultra-broadband microwave hybrid absorbers" (2014). Birck and NCN Publications. Paper 1527.
http://dx.doi.org/10.1063/1.4862262
Comments
This is the Publisher PDF of Li, W; Wu, T; Wang, W; Guan, J; and Zhai, P. "Integrating non-planar metamaterials with magnetic absorbing materials to yield ultra-broadband microwave hybrid absorbers." Applied Physics Letters, 104, 022903 (2014). Copyright AIP, it is available at http://dx.doi.org/10.1063/1.4862262.