A compact microstrip coupler using T-shape and open stubs for fifth generation applications

The paper presents a new design of a compact branch-line coupler (BLC) operating at 3.5 GHz, that is suitable for 5G applications. In order to miniaturize the proposed coupler, two miniaturization methods are combined where a T-shaped structure is used instead of quarter wavelengths parallels, as we...

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Main Authors: Abouhssous Khadija, Zugari Asmaa, Zakriti Alia
Format: Article
Language:English
Published: EDP Sciences 2022-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/18/e3sconf_icies2022_01086.pdf
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author Abouhssous Khadija
Zugari Asmaa
Zakriti Alia
author_facet Abouhssous Khadija
Zugari Asmaa
Zakriti Alia
author_sort Abouhssous Khadija
collection DOAJ
description The paper presents a new design of a compact branch-line coupler (BLC) operating at 3.5 GHz, that is suitable for 5G applications. In order to miniaturize the proposed coupler, two miniaturization methods are combined where a T-shaped structure is used instead of quarter wavelengths parallels, as well as open stubs are introduced into the series lines resulting in a size reduction of 52.56% with 25.05% fractional bandwidth (FBW). The frequency responses indicate that the presented coupler is able to operate at 3.04 GHz to 3.91 GHz with a low return loss and high isolation that is improved to -28.9 and -31.1 dB in 3.5 GHz, insertion loss and coupling of -3.6 dB and -3.5 dB, respectively, and a phase difference of about 90°±1°. The strong agreement of measurement and simulation results indicated the suitability of this proposed design for 5G microwave integrated circuits (ICs) that require a small size.
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spelling doaj.art-7c5d2040633a43909ec22478d7801e052022-12-22T02:27:53ZengEDP SciencesE3S Web of Conferences2267-12422022-01-013510108610.1051/e3sconf/202235101086e3sconf_icies2022_01086A compact microstrip coupler using T-shape and open stubs for fifth generation applicationsAbouhssous Khadija0Zugari Asmaa1Zakriti Alia2Information and Telecommunication System Laboratory, FS, Abdelmalek Essadi UniversityInformation and Telecommunication System Laboratory, FS, Abdelmalek Essadi UniversityLaboratory of Science and Advanced Technology, Department of Civil and Industrial Sciences and Technologies, National school of Applied Sciences, Abdelmalek Essadi UniversityThe paper presents a new design of a compact branch-line coupler (BLC) operating at 3.5 GHz, that is suitable for 5G applications. In order to miniaturize the proposed coupler, two miniaturization methods are combined where a T-shaped structure is used instead of quarter wavelengths parallels, as well as open stubs are introduced into the series lines resulting in a size reduction of 52.56% with 25.05% fractional bandwidth (FBW). The frequency responses indicate that the presented coupler is able to operate at 3.04 GHz to 3.91 GHz with a low return loss and high isolation that is improved to -28.9 and -31.1 dB in 3.5 GHz, insertion loss and coupling of -3.6 dB and -3.5 dB, respectively, and a phase difference of about 90°±1°. The strong agreement of measurement and simulation results indicated the suitability of this proposed design for 5G microwave integrated circuits (ICs) that require a small size.https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/18/e3sconf_icies2022_01086.pdf
spellingShingle Abouhssous Khadija
Zugari Asmaa
Zakriti Alia
A compact microstrip coupler using T-shape and open stubs for fifth generation applications
E3S Web of Conferences
title A compact microstrip coupler using T-shape and open stubs for fifth generation applications
title_full A compact microstrip coupler using T-shape and open stubs for fifth generation applications
title_fullStr A compact microstrip coupler using T-shape and open stubs for fifth generation applications
title_full_unstemmed A compact microstrip coupler using T-shape and open stubs for fifth generation applications
title_short A compact microstrip coupler using T-shape and open stubs for fifth generation applications
title_sort compact microstrip coupler using t shape and open stubs for fifth generation applications
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/18/e3sconf_icies2022_01086.pdf
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