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A Compact Four Port Ground-Coupled CPWG-Fed MIMO Antenna for Wireless Applications.
- Source :
-
Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ) . Nov2022, Vol. 47 Issue 11, p14087-14103. 17p. - Publication Year :
- 2022
-
Abstract
- In this article, a low profile four element coplanar waveguide ground (CPWG) fed multiple input multiple output (MIMO) antenna having designed footprint of 1.65 × 1.65λ (at 5.5 GHz) is developed for Wi-Fi 5 (5.15–5.85 GHz) and Wi-Fi 6 (5.925–7.125 GHz) access point and repeater applications to satisfy the increasing demands of wireless communication. Each antenna element that is applied for MIMO configuration, consists of a Y-shaped monopole top-loaded by an inverted-C structure (ICS), in which the two open-ends of the ICS are coupled to the two-side ground forming a symmetrical ground-coupled loop antenna structure. Further four identical antenna elements are arranged in a sequential clockwise manner to suppress the mutual coupling among antenna elements forming a 4-port MIMO antenna structure. To enhance the isolation between the adjacent antenna elements, the partial ground planes of all 4 elements are meticulously connected by a whirligig isolating structure. The proposed 4-port MIMO antenna is fabricated and tested for the validation of design, scattering and radiation performances as well as MIMO diversity parameters. Besides yielding a very wide measured 10-dB impedance bandwidth of 35.45% (5.15–7.37 GHz) with isolation better than 25 dB, the designed 4-port MIMO antenna has also demonstrated acceptable gain and radiation efficiency of 4 dBi and 74%, respectively. Furthermore, desirable MIMO performances like envelope correlation coefficient (ECC) less than 0.008, diversity gain (DG) ~ 10 dB and channel capacity of around 21 bps/Hz are also calculated across the bands of interest. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 2193567X
- Volume :
- 47
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. )
- Publication Type :
- Academic Journal
- Accession number :
- 160293954
- Full Text :
- https://doi.org/10.1007/s13369-022-06620-z