High Performance Antenna System in MIMO Configuration for 5G Wireless Communications Over Sub-6 GHz Spectrum Articles uri icon

authors

  • Din, Iftikhar ud
  • ALIBAKHSHIKENARI, MOHAMMAD
  • Virdee, Bal S.
  • Ullah, Sadiq
  • Ullah, Shakir
  • Akram, Muhammad Rizwan
  • Ali, Syed Mansoor
  • Livreri, Patrizia
  • Limiti, Ernesto

publication date

  • October 2023

issue

  • 10

volume

  • 58

International Standard Serial Number (ISSN)

  • 0048-6604

Electronic International Standard Serial Number (EISSN)

  • 1944-799X

abstract

  • This paper presents a high-performance multiple input and multiple output (MIMO) antenna comprising 2 × 2 configuration of radiating elements that is designed for sub-6 GHz applications. The proposed MIMO antenna employs four identical radiating elements. High isolation between the radiating elements and therefore reduced mutual coupling is achieved by spatially arranging the radiating elements in an orthogonal configuration. Also, a novel frequency selective surface (FSS) was employed to increase the gain of the MIMO antenna over a wide bandwidth from 3 to 6 GHz. This was achieved by locating the FSS above the antenna at a certain height. The FSS essentially enhanced the antenna's directivity, reduced back lobe radiation and mutual coupling. The antenna was fabricated on a standard Rogers RT Duroid 5880 dielectric substrate with a 0.8 mm thickness. The overall dimension of the MIMO antenna is 50 × 50 × 12.5 mm3 and it operates from 3.8 to 6 GHz, which corresponds to a fractional bandwidth of 41%. The proposed MIMO antenna has a measured peak gain of 4.8 dBi and inter radiation element isolation >20 dB. Its envelope correlation coefficient is less than 0.1 and diversity gain >9.9 (dB). These characteristics make the proposed MIMO antenna system suitable for 5G communication systems.

keywords

  • 5g wireless devices; ecc; high isolation; mimo antenna; sub-6 ghz; wi-max; wide bandwidth; wlan