Collocated MIMO travelling wave SIW slot array antennas for millimetre waves

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

doi:10.1049/mia2.12110

Collocated MIMO travelling wave SIW slot array antennas for millimetre waves

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

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.

Original language	English
Pages (from-to)	815-826
Number of pages	12
Journal	IET Microwaves, Antennas and Propagation
Volume	15
Issue number	8
DOIs	https://doi.org/10.1049/mia2.12110
State	Published - 1 Jul 2021

Bibliographical note

Publisher Copyright:
© 2021 The Authors. IET Microwaves, Antennas & Propagation published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology.

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1049/mia2.12110

Cite this

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title = "Collocated MIMO travelling wave SIW slot array antennas for millimetre waves",

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.",

author = "Asim Ghalib and Sharawi, {Mohammad S.} and Raj Mittra and Hussein Attia and Atif Shammim",

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AU - Ghalib, Asim

AU - Sharawi, Mohammad S.

AU - Mittra, Raj

AU - Attia, Hussein

AU - Shammim, Atif

PY - 2021/7/1

Y1 - 2021/7/1

N2 - 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.

AB - 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.

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Collocated MIMO travelling wave SIW slot array antennas for millimetre waves

Abstract

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