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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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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DOI: https://doi.org/10.1007/s11276-023-03390-w