Frequency Tunable Metamaterial Absorber Using Hygroscopicity of Nature Cork

@article{Ling2015FrequencyTM,
  title={Frequency Tunable Metamaterial Absorber Using Hygroscopicity of Nature Cork},
  author={Kenyu Ling and Minyeong Yoo and Sungjoon Lim},
  journal={IEEE Antennas and Wireless Propagation Letters},
  year={2015},
  volume={14},
  pages={1598-1601}
}
In this letter, a novel frequency tunable metamaterial absorber is proposed for wireless humidity sensor applications made with natural cork. Natural cork has excellent hygroscopicity and its electrical properties can be changed depending on the moisture content. In this work, the absorption ratio of the proposed absorber are simulated and measured in different moisture content ( M = 0%, 1.44%, 5.88%, 13.32%, 18.8%) of the cork substrate. The resonant frequency changed from 4.92 GHz in the dry… CONTINUE READING

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