Broadband 3-D shared aperture high isolation nine-element antenna array for on-demand millimeter-wave 5G applications. Articles uri icon

authors

  • ALIBAKHSHIKENARI, MOHAMMAD
  • VIRDEE, BAL S.
  • Vadalà, Valeria
  • DALARSSON, MARIANA
  • de Cos Gómez, María Elena
  • Al Harbi, Abdullah G.
  • Burokur, Shah Nawaz
  • Aïssa, Sonia
  • Dayoub, Iyad
  • FALCONE, FRANCISCO
  • LIMITI, ERNESTO

published in

publication date

  • July 2022

start page

  • 1

end page

  • 10

issue

  • 267

volume

  • 2022

International Standard Serial Number (ISSN)

  • 0030-4026

Electronic International Standard Serial Number (EISSN)

  • 1618-1336

abstract

  • The paper presents the results of a novel 3-D shared aperture 3 × 3 matrix antenna-array for 26
    GHz band 5 G wireless networks. Radiation elements constituting the array are hexagonal-shaped
    patches that are elevated above the common dielectric substrate by 3.35 mm and excited through
    a metallic rod of 0.4 mm diameter. The rod protrudes through the substrate of 0.8 mm thickness.
    It is shown that by isolating each radiating element in the array with a wall suppresses unwanted
    electromagnetic (EM) wave interactions, resulting in improvement in the antenna's impedance
    matching and radiation characteristics. Moreover, the results show that by embedding hexagonalshaped
    slots in the patches improve the antenna"s gain and radiation efficiency performance. The
    subwavelength length slots in the patches essentially transform the radiating elements to exhibit
    metasurface characteristics when the array is illuminated by EM-waves. The proposed array
    structure has an average gain and radiation efficiency of 20 dBi and 93%, respectively, across
    24.0-28.4 GHz. The isolation between its radiation elements is greater than 22 dB. Compared to
    the unslotted array the improvement in isolation between radiating elements is greater than 11

subjects

  • Telecommunications

keywords

  • array antennas; metasurface (mts); isolation wall; 5g; shared aperture; three dimensional (3-d)