Novel MIMO Antenna System for Ultra Wideband Applications Articles uri icon

authors

  • ALHARDI, ABDULLAH G.
  • RAFIQUE, UMAIR
  • ULLAH, SHAKIR
  • KHAN, SALAHUDDIN
  • ABBAS, SYED MUZAHIR
  • Mousa Ali, Esraa
  • ALIBAKHSHIKENARI, MOHAMMAD
  • DALARSSON, MARIANA

publication date

  • April 2022

start page

  • 3684

end page

  • 3698

issue

  • 7

volume

  • 12

International Standard Serial Number (ISSN)

  • 2076-3417

abstract

  • The design of a 4 x 4 MIMO antenna for UWB communication systems is presented in
    this study. The single antenna element is comprised of a fractal circular ring structure backed by a
    modified partial ground plane having dimensions of 30 x 30 mm2. The single antenna element has a
    wide impedance bandwidth of 9.33 GHz and operates from 2.67 GHz to 12 GHz. Furthermore, the
    gain of a single antenna element increases as the frequency increases, with a peak realized gain and
    antenna efficiency of 5 dBi and >75%, respectively. For MIMO applications, a 4 x 4 array is designed
    and analyzed. The antenna elements are positioned in a plus-shaped configuration to provide pattern
    as well as polarization diversity. It is worth mentioning that good isolation characteristics are achieved
    without the utilization of any isolation enhancement network. The proposed MIMO antenna was
    fabricated and tested, and the results show that it provides UWB response from 2.77 GHz to over
    12 GHz. The isolation between the antenna elements is more than 15 dB. Based on performance
    attributes, it can be said that the proposed design is suitable for UWB MIMO applications.

keywords

  • 4 x 4 mimo; uwb communication; fractal circular ring; pattern and polarization; diversity; plus shape configuration