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Electromagnetic coupling suppression of circularly polarized mimo antenna with novel loop parasitic for UWB communication

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Abstract

In this article, four elements circularly polarized trapezoid multiple inputs and multiple outputs (MIMO) antenna for UWB application is presented. The electrical dimension of presented four elements MIMO antenna in term of lambda (λ) is 0.44λ × 0.44λ × 0.012λ. The novel loop parasitic is used for the enhancement of isolation and impedance bandwidth. The reflection coefficient (Sij ∈ i = j) is less than − 10dB in range of 2.4 GHz and 13.5 GHz and isolation (Sij ∈ i ≠ j) is greater than 22dB in given range. The axial ratio bandwidth (ARBW) of presented trapezoid antenna is 3.6 GHz; less than − 3dB in the range of 6.7 and 10.3 GHz. The peak gain is 5.9dBi, diversity gain (DG) > 9.89dB and envelope correlation coefficient (ECC) < 0.022. Various other parameters such as radiation pattern, reflection coefficient, Isolation, multiplexing efficiency, ECC, DG and peak gain are discussed in detail for experimental validation.

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Authors and Affiliations

  1. College of Electronics and Information Engineering, Nanjing University of Aeronautics and Astronautics (NUAA), Nanjing, China

    Muhammad Irshad Khan, Shaobin Liu, Muhammad Kabir Khan & Muhammad Sajjad

  2. School of Electronic Engineering, Xidian University, Xi’an, China

    Saeed Ur Rahman

  3. School of Information Science and Engineering, Ningbo Tech University, Ningbo, 315104, China

    Abdul Basit & Amil Daraz

  4. College of Automation Engineering, Shanghai University of Electric Power, Shanghai, 200090, China

    Jianliang Mao

Authors
  1. Muhammad Irshad Khan
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  2. Shaobin Liu
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Contributions

Original draft preparation was made by MIK, supervised by SL while reviewed by SUR, MKK, MS, AB, JM and AD.

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Correspondence to Muhammad Irshad Khan.

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Khan, M.I., Liu, S., Rahman, S.U. et al. Electromagnetic coupling suppression of circularly polarized mimo antenna with novel loop parasitic for UWB communication. Analog Integr Circ Sig Process 118, 577–588 (2024). https://doi.org/10.1007/s10470-024-02256-1

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