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A Compact High Gain Metamaterial-Based Antenna for Terahertz Applications

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Abstract

In this work, a compact inset-fed microstrip patch antenna integrated with a double negative metamaterial superstrate is presented for terahertz applications. A rectangular-shaped inset-fed antenna is utilized as the main radiator, which gives an impedance bandwidth of 1.281–1.354 THz. To improve the bandwidth and gain characteristics, a nested rectangular ring-shaped metamaterial structure is designed. This structure shows double negative properties at the resonance frequency, which enhances the gain and bandwidth simultaneously. The designed antenna achieves a gain improvement of 1.9 dB at Φ = 0° and Φ = 90°. A reflection coefficient of −24 dB is achieved with a bandwidth enhancement of 26% at 1.32 THz. The antenna maintains very good radiation characteristics, and the peak gain value reaches 7.72 dB at 1.32 THz. This metamaterial-based antenna can be used for biomedical, imaging, and radar applications.

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Authors and Affiliations

  1. Amity School of Engineering and Technology, Noida, India

    Ishita Aggarwal, Sujata Pandey & Malay Ranjan Tripathy

  2. Ambedkar Institute of Advanced Communication Technologies and Research, New Delhi, India

    Ashok Mittal

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  1. Ishita Aggarwal
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  2. Sujata Pandey
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  3. Malay Ranjan Tripathy
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  4. Ashok Mittal
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Correspondence to Ishita Aggarwal.

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Aggarwal, I., Pandey, S., Tripathy, M.R. et al. A Compact High Gain Metamaterial-Based Antenna for Terahertz Applications. J. Electron. Mater. 51, 4589–4600 (2022). https://doi.org/10.1007/s11664-022-09716-2

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  • DOI: https://doi.org/10.1007/s11664-022-09716-2

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