dc.contributor |
Háskólinn í Reykjavík |
dc.contributor |
Reykjavik University |
dc.contributor.author |
Ullah, Ubaid |
dc.contributor.author |
Mabrouk, Ismail Ben |
dc.contributor.author |
Koziel, Slawomir |
dc.contributor.author |
Al-Hasan, Muath |
dc.date.accessioned |
2020-11-30T16:56:52Z |
dc.date.available |
2020-11-30T16:56:52Z |
dc.date.issued |
2020 |
dc.identifier.citation |
Ullah, U., Ben Mabrouk, I., Koziel, S., & Al-Hasan, M. (2020). Implementation of Spatial/Polarization Diversity for Improved-Performance Circularly Polarized Multiple-Input-Multiple-Output Ultra-Wideband Antenna. Ieee Access, 8, 64112–64119. https://doi.org/10.1109/ACCESS.2020.2984697 |
dc.identifier.issn |
2169-3536 |
dc.identifier.uri |
https://hdl.handle.net/20.500.11815/2262 |
dc.description |
Publisher's version (útgefin grein) |
dc.description.abstract |
In this paper, spatial and polarization diversities are simultaneously implemented in an ultra-wideband (UWB) multiple-input-multiple-output (MIMO) antenna to reduce the correlation between the parallel-placed radiators. The keystone of the antenna is systematically modified coplanar ground planes that enable excitation of circular polarization (CP). To realize one sense of circular polarization as well as ultra-wideband operation, an extended rectangular slot is etched on the left-hand-side of the coplanar waveguide (CPW) feed. This is combined with the asymmetrical ground plane geometry on the right-hand-side of the feeding line. The current flowing on the slotted ground plane forms a quasi-loop and generates CP, whereas the combination of the vertical current on the feedline and the horizontal current on the asymmetric ground plane adds to the axial ratio (AR) bandwidth. To implement the MIMO design with polarization and spatial diversity, the position of the coplanar ground planes is switched with respect to the feedline, and placed in a parallel formation with the edge-to-edge distance of 0.29 lambda(0). All geometrical parameters are optimized at the full-wave level of description before prototyping and experimental characterization. Simulation and measured results indicate that the proposed MIMO antenna features approximately 82% impedance bandwidth from 2.9 GHz to 7.1 GHz and 68.5% (3.1 GHz-6.35 GHz) AR bandwidth. Moreover, the peak envelop correlation coefficient (ECC) is below 0.003, which corresponds to almost no correlation between the radiators. The antenna can be operated with either bidirectional or unidirectional characteristics, covering multiple commercial application bands including WLAN and WiMax. |
dc.description.sponsorship |
This work was supported in part by the Abu-Dhabi Department of Education and Knowledge (ADEK) Award for Research Excellence 2019 under Grant AARE19-245, in part by the Icelandic Centre for Research (RANNIS) under Grant 206606051, and in part by the National Science Centre of Poland under Grant 2018/31/B/ST7/02369. |
dc.format.extent |
64112-64119 |
dc.language.iso |
en |
dc.publisher |
Institute of Electrical and Electronics Engineers (IEEE) |
dc.relation.ispartofseries |
IEEE Access;8 |
dc.rights |
info:eu-repo/semantics/openAccess |
dc.subject |
General Engineering |
dc.subject |
General Materials Science |
dc.subject |
General Computer Science |
dc.subject |
Circular polarization antennas |
dc.subject |
MIMO antennas |
dc.subject |
Compact antennas |
dc.subject |
Wideband antennas |
dc.subject |
Simulation-driven design |
dc.subject |
Verkfræði |
dc.subject |
Efnisfræði |
dc.subject |
Tölvunarfræði |
dc.subject |
Loftnet |
dc.subject |
Skautun (rafsegulfræði) |
dc.subject |
Þráðlaust net |
dc.subject |
Breiðband |
dc.subject |
Hermilíkön |
dc.subject |
Hönnun |
dc.title |
Implementation of Spatial/Polarization Diversity for Improved-Performance Circularly Polarized Multiple-Input-Multiple-Output Ultra-Wideband Antenna |
dc.type |
info:eu-repo/semantics/article |
dcterms.license |
This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/ |
dc.description.version |
"Peer Reviewed" |
dc.identifier.journal |
IEEE Access |
dc.identifier.doi |
10.1109/ACCESS.2020.2984697 |
dc.relation.url |
http://xplorestaging.ieee.org/ielx7/6287639/8948470/09051676.pdf?arnumber=9051676 |
dc.contributor.department |
Verkfræðideild (HR) |
dc.contributor.department |
Department of Engineering (RU) |
dc.contributor.department |
Engineering Optimization & Modeling Center (EOMC) (RU) |
dc.contributor.school |
Tæknisvið (HR) |
dc.contributor.school |
School of Technology (RU) |