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A new design of ultra-thin wide stop-band metamaterial filter for terahertz waves

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Abstract

A new design for an ultra-thin broadband stop-band metamaterial filter in the terahertz region is proposed. The filter is composed of metal-dielectric-metal structure and studied by simulations with CST software. Our simulation results show that the  − 20 dB bandwidth of the filter reaches 1.1 THz, and the transmission rate in the stopband is not more than 1%. By analyzing the field intensity and surface current distribution of the filter, the filtering mechanism of the filter can be understood. The effects of various structural parameters on the transmission rate are discussed. In addition, the designed filter is insensitive to the polarization angle. A comparison of it and the previous designs is made. It turns out that the designed filter is thinner and has a better performance, indicating that it may have potential applications in terahertz communication and electromagnetic shielding.

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Data and materials availability

The data that support the findings of this study are available upon reasonable request from the authors.

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Funding

This work was supported by the National Natural Science Foundation of China (Grant nos. 11874050 and 12075315).

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Authors and Affiliations

  1. College of Mathematics and Physics, Beijing University of Chemical Technology, Beijing, 100029, People’s Republic of China

    Xiongying Chao, Yunfan Wang & Zhaoyang Chen

  2. College of Science, China Agricultural University, Beijing, 100083, People’s Republic of China

    Feng Huang

Authors
  1. Xiongying Chao
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  2. Yunfan Wang
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  3. Feng Huang
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  4. Zhaoyang Chen
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Contributions

CX: Conceptualization, Methodology, Software Data curation, Writing—Original draft preparation. WY: Supervision. CZ: Writing—Reviewing and Editing. HF: Writing—Reviewing and Editing. All authors reviewed the manuscript.

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Correspondence to Zhaoyang Chen.

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Chao, X., Wang, Y., Huang, F. et al. A new design of ultra-thin wide stop-band metamaterial filter for terahertz waves. Opt Quant Electron 55, 800 (2023). https://doi.org/10.1007/s11082-023-05064-5

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