Optimize the Dielectric Slab of the Tunable Active Frequency Selective Surface Absorbing Material

Qian Chen; Jian Jun Jiang; Xin Xin Xu; Biao Sun; Li Zhang; Ling Miao; Shao Wei Bie

doi:10.4028/www.scientific.net/AMR.534.209

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Optimize the Dielectric Slab of the Tunable Active Frequency Selective Surface Absorbing Material
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 534Optimize the Dielectric Slab of the Tunable Active...

Optimize the Dielectric Slab of the Tunable Active Frequency Selective Surface Absorbing Material

Abstract:

Active frequency selective surface (AFSS) absorber loaded with PIN diodes is a new type of structural absorber with tunable absorption properties. This absorber is similar to a sandwich, the surface is an AFSS, the middle is a dielectric slab, and the bottom is a metallic ground. In order to design and fabricate a thin and good performance absorber, the selection of dielectric slab is very important. In this paper, we detailed investigated the effects of the dielectric slab parameters (permittivity and thickness) to the absorption properties by experiments, and an experimental equation was proposed to provide a better description about their relationship. The measured results indicated there was an optimum thickness for the dielectric slab to produce the broadest bandwidth. The experimental equation was useful to optimize the design of the absorber.

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Periodical:

Advanced Materials Research (Volume 534)

Pages:

209-214

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.534.209

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Online since:

June 2012

Authors:

Qian Chen, Jian Jun Jiang, Xin Xin Xu, Biao Sun, Li Zhang, Ling Miao, Shao Wei Bie

Keywords:

Active Frequency Selective Surface (AFSS), Dielectric Slab, Radar Absorber, Surface Absorbing Material

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