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Metamaterial-inspired MIMO antenna with negative permeability-based isolation enhancement for THz applications

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Abstract

A compact metamaterial-inspired two-port antenna based on negative permeability for isolation enhancement is presented. The antenna size is 65 × 60 × 1.5 µm3 where the distance to the edges of the antenna radiator is only 27 μm (0.173λ), which is less than the conventional distance (λ/2). A modified SRR-based radiator is designed using metamaterial analysis whose negative permeability is responsible for dual operating bands. Metamaterial-inspired meander-line based on negative permeability is used to increase the isolation by 31 dB at 2.1 THz. The maximum value of the isolation of the two-port antenna is 44.3 dB, which shows the low mutual coupling and surface current between the antenna elements. The MTM-inspired MIMO antenna operates at 2.1 THz and 5.3 THz. The required value of ECC and CCL of the two-port antenna is < 0.05 and < 0.4 bits/Sc/Hz, respectively, which shows the diversity performance and antenna can be good choice for THz operating bands.

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Authors and Affiliations

  1. Department of Applied Science & Humanities, ABES Engineering College, Ghaziabad, Uttar Pradesh, 201009, India

    Divya Saxena

  2. Department of Electronics and Communication Engineering, Raj Kumar Goel Institute of Technology & Management, Ghaziabad, Uttar Pradesh, 201003, India

    Anubhav Kumar

Authors
  1. Divya Saxena
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  2. Anubhav Kumar
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Contributions

Anubhav Kumar design the Two-port antenna and validation of the results, Divya saxena completed the mathematical analysis of metamaterial radiator and Meander-line decoupling network as well as design the EC Model. Both authors wrote and reviewed the manuscript.

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Correspondence to Anubhav Kumar.

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Saxena, D., Kumar, A. Metamaterial-inspired MIMO antenna with negative permeability-based isolation enhancement for THz applications. Opt Quant Electron 56, 945 (2024). https://doi.org/10.1007/s11082-024-06648-5

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