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Two Port Circularly Polarized MIMO Antenna Design and Investigation for 5G Communication Systems

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Abstract

A compact size wideband circularly polarized (CP) 2-port multiple-input-multiple-output (MIMO) antenna is designed for the fifth generation (5G) region under the sub-6 GHz band. The presented antenna has (≤ − 10 dB) impedance bandwidth of 900 MHz (3.3–4.2 GHz) and has 100% 3-dB axial ratio bandwidth. The antenna covers the potential 5G band ranging from 3.3 to 3.8 GHz having left-handed circular polarization characteristics. To validate performance attributes of the MIMO antenna designed various diversity parameters such as envelope correlation coefficient (ECC), total active reflection coefficient, and diversity gain are calculated. The low envelope correlation coefficient (ECC < 0.10) and the isolation between the antenna elements greater than 15 dB justify the acceptance of the proposed design as a MIMO antenna. The proposed design exhibits good agreement between the simulated and the measured results.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, Indian Institute of Information Technology Allahabad, Prayagraj, India

    Ajay Kumar Dwivedi

  2. Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India

    Anand Sharma

  3. Department of Electronics Engineering, Institute of Engineering and Rural Technology, Prayagarj, India

    Akhilesh Kumar Pandey

  4. Department of Electronics and Communication, Shambhunath Institute of Engineering and Technology, Prayagarj, India

    Vivek Singh

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  1. Ajay Kumar Dwivedi
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Correspondence to Vivek Singh.

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Dwivedi, A.K., Sharma, A., Pandey, A.K. et al. Two Port Circularly Polarized MIMO Antenna Design and Investigation for 5G Communication Systems. Wireless Pers Commun 120, 2085–2099 (2021). https://doi.org/10.1007/s11277-021-08461-9

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