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A 4-element crescent shaped two-sided MIMO antenna for UWB, X and Ku band wireless applications

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Abstract

This paper presents design of a 4-element crescent-shaped two-sided multiple-input-multiple-output (MIMO) antenna, employing pattern and polarization diversity with improved element-to-element isolation, for UWB, X and Ku band wireless applications. The proposed crescent-shaped MIMO structure consists of two antennas on the top and remaining two antennas on the bottom sides of the substrate. The developed antenna operates in a frequency range from 2.8 to 15.2 GHz, covering the entire UWB 3.1–10.6 GHz, X-band and portion of Ku-band giving element-to-element isolation of more than 20 dB in most of the operating bands. Also, the proposed MIMO structure gives a maximum gain of 6.6 dBi with radiation efficiency from 75 to 95% in the operating band. The important MIMO parameters like envelope correlation coefficient (ECC < 0.005), channel capacity loss (CCL < 0.03 bits/s/Hz), mean effective gain (MEG < − 3 dB) and total active reflection coefficient (TARC < − 10 dB) are presented to estimate the performance of the developed UWB MIMO system.

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All the data generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

The authors would like to forward sincere gratefulness to Mr. Vijaya sarathi reddy, Head of Organization, Excel Radio Frequency Technologies PVT. LTD, Prasanthi Nagar, Kukatpally I E, Hyderabad, Telangana state, India for providing lab facilities for fabrication, testing and measuring the patterns of the fabricated prototype as a part of research work.

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Authors and Affiliations

  1. Department of ECE, Aditya Engineering College, Surampalem, India

    Tathababu Addepalli

  2. Department of ECE, St. Ann’s College of Engineering and Technology, Chirala, Andhra Pradesh, India

    Jagadeesh Babu Kamili & Bandi Kiran Kumar

  3. Department of Electrical and Electronics Engineering, Ecole Centrale School of Engineering, Mahindra University, Hyderabad, Telangana State, India

    Subbarao Boddu

  4. Department of ECE, PACE Institute of Technology and Sciences (A), Ongole, Andhra Pradesh, India

    Rajasekhar Manda

  5. School of EEE, VIT Bhopal University, Bhopal, Madhya Pradesh, 466114, India

    Anveshkumar Nella

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  1. Tathababu Addepalli
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Correspondence to Anveshkumar Nella.

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Addepalli, T., Kamili, J.B., Boddu, S. et al. A 4-element crescent shaped two-sided MIMO antenna for UWB, X and Ku band wireless applications. Wireless Netw 29, 3333–3348 (2023). https://doi.org/10.1007/s11276-023-03390-w

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