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Collocated MIMO travelling wave SIW slot array antennas for millimetre waves

Asim Ghalib, Mohammad S. Sharawi, Raj Mittra, Hussein Attia and Atif Shammim

Article (2021)

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Abstract

A novel four-element collocated travelling wave substrate integrated waveguide (SIW) multiple-input multiple-output (MIMO) antenna covering millimetre wave (mm-wave) bands (28–32 GHz) is presented. The antenna exhibits a matching bandwidth of more than 4 GHz and a measured gain of 15 dBi. The MIMO antenna elements are collocated, thus significantly reducing the size of the proposed design. To spatially isolate the beams (obtain lower correlation coefficient) of the MIMO antenna elements, the beams are oriented in different directions. The slots within each SIW array are designed to provide tilted beams, thus eliminating the need for a beam switching network. Four distinct beams are formed towards ±10° and ±30°. The dimension of the four-element MIMO SIW design is 68 × 30.68 × 0.5 mm3. The proposed antenna has a high gain, compact size, simpler feeding and enhanced MIMO capability compared to other SIW antennas proposed in the literature.

Subjects: 2500 Electrical and electronic engineering > 2500 Electrical and electronic engineering
2500 Electrical and electronic engineering > 2511 Antennas and propagation
2500 Electrical and electronic engineering > 2520 Microwave and millimeter-wave devices, circuits and technologies
Department: Department of Electrical Engineering
Research Center: POLY-GRAMES - Advanced Research Centre in Microwaves and Space Electronics
Funders: King Fahd University of Petroleum and Minerals, King Abdullah University of Science and Technology
Grant number: FT 161006, ST-2016-KKI-2899
PolyPublie URL: https://publications.polymtl.ca/9302/
Journal Title: IET Microwaves, Antennas & Propagation (vol. 15, no. 8)
Publisher: John Wiley & Sons
DOI: 10.1049/mia2.12110
Official URL: https://doi.org/10.1049/mia2.12110
Date Deposited: 27 Feb 2023 11:33
Last Modified: 10 Apr 2024 09:46
Cite in APA 7: Ghalib, A., Sharawi, M. S., Mittra, R., Attia, H., & Shammim, A. (2021). Collocated MIMO travelling wave SIW slot array antennas for millimetre waves. IET Microwaves, Antennas & Propagation, 15(8), 815-826. https://doi.org/10.1049/mia2.12110

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