Dual band omnidirectional millimeter wave antenna for 5G communications

ABSTRACT

A planar dual band millimeter wave printed monopole antenna and a $2\times 2$ MIMO antenna are presented for 28/38 GHz future 5G wireless communications. The shape of the radiating element of the proposed antenna is derived from a 28 GHz rectangular monopole. The radiating element isproducing a second resonance at 38 laterally slimmed in a hemispherical manner to intensify the surface current density along the hemispherical contour, producing a second resonance at 38 GHz. The measured impedance bandwidth confirms its dual band characteristics, covering 26.65–29.2 and 36.95–39.05 GHz where $|S_{11}|\le -10\mathrm{d}\mathrm{B}$. The measured radiation patterns are omnidirectional, with a peak gain value of 1.27 and 1.83 dBi at 28 and 38 GHz, respectively. Moreover, diversity performance of the proposed MIMO antenna is evaluated in terms of MIMO performance metrics. such as envelope correlation coefficient, diversity gain, isolation and channel loss capacity.

KEYWORDS:

• Millimeter wave antenna
• 5G antenna
• microstrip antenna
• monopole antenna
• MIMO antenna

Disclosure statement

No potential conflict of interest was reported by the authors.

ORCID

Md Nazmul Hasan  http://orcid.org/0000-0003-4037-1140

Additional information

Notes on contributors

Md Nazmul Hasan

Md Nazmul Hasan has completed his MS Electrical and Computer Engineering from Sungkyunkwan University, South Korea in 2019.

Shahid Bashir

Shahid Bashir has completed his PhD in Electrical Engineering from Loughborough University, UK.

Son Chu

Son Chu is pursuing his DPhil. in the Department of Engineering Science at the University of Oxford, UK.