Design of tunable metamaterial absorbers based on PIN diodes

Xinxin Xu; Jianjun Jiang; Ling Miao; Qian Chen; Biao Sun

doi:10.1587/elex.9.1408

Xinxin Xu, Jianjun Jiang, Ling Miao, Qian Chen, Biao Sun

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Keywords: tunable, metamaterial absorbers, PIN diodes

JOURNAL FREE ACCESS

2012 Volume 9 Issue 17 Pages 1408-1413

DOI https://doi.org/10.1587/elex.9.1408

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Abstract

A tunable metamaterial absorbers (MA) comprised of a new combination shaped metal elements printed on a dielectric substrate loaded with PIN diodes were demonstrated. Through biasing at different voltages to control the diodes, the reflectivity characteristics of the structure can be varied over the entire 2-18GHz range. A qualitative analysis by a simple visualization method is carried out on the parameters of the tunable MA. Both numerical calculations and microwave measurements have verified the performance.

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