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Compact dual-band design and analysis of half-circular U-shape MIMO radiator for wireless applications

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Abstract

A key parameter of 5G communication is MIMO technology in the forthcoming years. In order to maintain best MIMO system the correlation between the antennas is < 0.2. The distance between the patches is 2.5 mm is considered by parametric study that reduces the transmission coefficient (S12) is − 45 dB and − 33.5 dB at lower and higher bands. The impedance bandwidths at measured frequencies are 830 MHz and 2.37 GHz, radiation efficiencies of 88.9% and 84.91%, realized gains of 3.10 dBi and 3.58 dBi. The antenna occupies the total area is 0.45λ0 × 0.291λ0 × 0.03λ0 with reflection coefficient (S11) is − 41.25 dB and − 14.58 dB. The group delay (GD) of − 18.009 ± 1ns observed from the simulation results with S11 of − 41.27 dB is obtained by IBW of 790 MHz. At the both resonating bands ECC is slightly lower than the 0.04. The dual-band antenna has a good radiation pattern, advisable VSWR, gain characteristics and radiation efficiency which are acceptable for limited wireless communication applications.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, Vasireddy Venkatadri Institute of Technology, Nambur, Guntur, AP, India

    K. Vasu Babu

  2. Department of Electronics and Communication Engineering, St. Ann’s College of Engineering and Technology, Chirala, India

    Pasumarthi Srinivasa Rao

  3. Department of Electronics and Communication Engineering, Aditya College of Engineering, Madanpalli, India

    B. Chandrababu Naik

  4. Department of Electronics and Communication Engineering, Institute of Aeronautical Engineering, Hyderabad, India

    B. Ravi Kumar

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  1. K. Vasu Babu
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  2. Pasumarthi Srinivasa Rao
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  3. B. Chandrababu Naik
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  4. B. Ravi Kumar
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Correspondence to K. Vasu Babu.

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Babu, K.V., Rao, P.S., Naik, B.C. et al. Compact dual-band design and analysis of half-circular U-shape MIMO radiator for wireless applications. Microsyst Technol 29, 501–514 (2023). https://doi.org/10.1007/s00542-022-05359-9

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  • DOI: https://doi.org/10.1007/s00542-022-05359-9

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