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2014-10-01
A Broadband Metamaterial Absorber Using Fractal Tree Structure
By
Jia-Jun Ma,

    Dr. Jia-Jun Ma

    The Telecommunication Engineering Institute

    Air Force Engineering University

    China

    Homepage

Wei Hong Tong,

    Dr. Wei Hong Tong

    Military Representative Office of Certain Company

    China

    Homepage

Kai Shi,

    Dr. Kai Shi

    Military Representative Office of Certain Company

    China

    Homepage

Xiang-Yu Cao,

    Prof. Xiang-Yu Cao

    Air Force Engineering University

    China

    Homepage

Bing Gong

    Dr. Bing Gong

    Xidian University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 49, 73-78, 2014
doi:10.2528/PIERL14083102 | Google Scholar

Abstract
A novel broadband absorber using the fractal tree structure is presented in this paper, which consists of three metallic layers separated by two dielectric substrates. Five metallic vias connect these three layers which make the whole structure like a two order fractal tree. Simulated and measured results show that this absorber can provide a high absorptivity level from 4.98 to 12.58 GHz, equivalent to a relative absorption bandwidth about 87%. Further investigations show that this wideband absorption can be attributed to the multi-eigenmodes and lower quality factor of the fractal tree structure.
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Citation
Jia-Jun Ma, Wei Hong Tong, Kai Shi, Xiang-Yu Cao, and Bing Gong, "A Broadband Metamaterial Absorber Using Fractal Tree Structure," Progress In Electromagnetics Research Letters, Vol. 49, 73-78, 2014.
doi:10.2528/PIERL14083102
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