High-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications

Abstract This paper presents the results of a study on developing an effective technique to increase the performance characteristics of antenna arrays for sub-THz integrated circuit applications. This is essential to compensate the limited power available from sub-THz sources. Although conventional...

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Autores principales:	Mohammad Alibakhshikenari, Bal S. Virdee, Shahram Salekzamankhani, Sonia Aïssa, Chan H. See, Navneet Soin, Sam J. Fishlock, Ayman A. Althuwayb, Raed Abd-Alhameed, Isabelle Huynen, James A. McLaughlin, Francisco Falcone, Ernesto Limiti
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cfe0935cdc114d3c9bf66d3fcee82b22
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spelling	oai:doaj.org-article:cfe0935cdc114d3c9bf66d3fcee82b222021-12-02T15:42:59ZHigh-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications10.1038/s41598-021-87712-y2045-2322https://doaj.org/article/cfe0935cdc114d3c9bf66d3fcee82b222021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87712-yhttps://doaj.org/toc/2045-2322Abstract This paper presents the results of a study on developing an effective technique to increase the performance characteristics of antenna arrays for sub-THz integrated circuit applications. This is essential to compensate the limited power available from sub-THz sources. Although conventional array structures can provide a solution to enhance the radiation-gain performance however in the case of small-sized array structures the radiation properties can be adversely affected by mutual coupling that exists between the radiating elements. It is demonstrated here the effectiveness of using SIW technology to suppress surface wave propagations and near field mutual coupling effects. Prototype of 2 × 3 antenna arrays were designed and constructed on a polyimide dielectric substrate with thickness of 125 μm for operation across 0.19–0.20 THz. The dimensions of the array were 20 × 13.5 × 0.125 mm3. Metallization of the antenna was coated with 500 nm layer of Graphene. With the proposed technique the isolation between the radiating elements was improved on average by 22.5 dB compared to a reference array antenna with no SIW isolation. The performance of the array was enhanced by transforming the patch to exhibit metamaterial characteristics. This was achieved by embedding the patch antennas in the array with sub-wavelength slots. Compared to the reference array the metamaterial inspired structure exhibits improvement in isolation, radiation gain and efficiency on average by 28 dB, 6.3 dBi, and 34%, respectively. These results show the viability of proposed approach in developing antenna arrays for application in sub-THz integrated circuits.Mohammad AlibakhshikenariBal S. VirdeeShahram SalekzamankhaniSonia AïssaChan H. SeeNavneet SoinSam J. FishlockAyman A. AlthuwaybRaed Abd-AlhameedIsabelle HuynenJames A. McLaughlinFrancisco FalconeErnesto LimitiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mohammad Alibakhshikenari Bal S. Virdee Shahram Salekzamankhani Sonia Aïssa Chan H. See Navneet Soin Sam J. Fishlock Ayman A. Althuwayb Raed Abd-Alhameed Isabelle Huynen James A. McLaughlin Francisco Falcone Ernesto Limiti High-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications
description	Abstract This paper presents the results of a study on developing an effective technique to increase the performance characteristics of antenna arrays for sub-THz integrated circuit applications. This is essential to compensate the limited power available from sub-THz sources. Although conventional array structures can provide a solution to enhance the radiation-gain performance however in the case of small-sized array structures the radiation properties can be adversely affected by mutual coupling that exists between the radiating elements. It is demonstrated here the effectiveness of using SIW technology to suppress surface wave propagations and near field mutual coupling effects. Prototype of 2 × 3 antenna arrays were designed and constructed on a polyimide dielectric substrate with thickness of 125 μm for operation across 0.19–0.20 THz. The dimensions of the array were 20 × 13.5 × 0.125 mm3. Metallization of the antenna was coated with 500 nm layer of Graphene. With the proposed technique the isolation between the radiating elements was improved on average by 22.5 dB compared to a reference array antenna with no SIW isolation. The performance of the array was enhanced by transforming the patch to exhibit metamaterial characteristics. This was achieved by embedding the patch antennas in the array with sub-wavelength slots. Compared to the reference array the metamaterial inspired structure exhibits improvement in isolation, radiation gain and efficiency on average by 28 dB, 6.3 dBi, and 34%, respectively. These results show the viability of proposed approach in developing antenna arrays for application in sub-THz integrated circuits.
format	article
author	Mohammad Alibakhshikenari Bal S. Virdee Shahram Salekzamankhani Sonia Aïssa Chan H. See Navneet Soin Sam J. Fishlock Ayman A. Althuwayb Raed Abd-Alhameed Isabelle Huynen James A. McLaughlin Francisco Falcone Ernesto Limiti
author_facet	Mohammad Alibakhshikenari Bal S. Virdee Shahram Salekzamankhani Sonia Aïssa Chan H. See Navneet Soin Sam J. Fishlock Ayman A. Althuwayb Raed Abd-Alhameed Isabelle Huynen James A. McLaughlin Francisco Falcone Ernesto Limiti
author_sort	Mohammad Alibakhshikenari
title	High-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications
title_short	High-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications
title_full	High-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications
title_fullStr	High-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications
title_full_unstemmed	High-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications
title_sort	high-isolation antenna array using siw and realized with a graphene layer for sub-terahertz wireless applications
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/cfe0935cdc114d3c9bf66d3fcee82b22
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High-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications

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