Planar Dual-Band Branch-Line Coupler With Large Frequency Ratio

This work presents a novel planar branch-line coupler topology developed for dual-band operation using an E-shaped impedance transformer network to supplant the conventional microstrip line. Explicit closed-form design equations for dual-band operation are derived using the ABCD matrices. The studie...

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Autores principales:	Lei Xia, Jia-Lin Li, Baidenger Agyekum Twumasi, Peng Liu, Shan-Shan Gao
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2020
Materias:	Dual-band branch-line coupler E-shaped impedance transformer large frequency ratio Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/03d060e52e484e8ca0036d4f49f006ff
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id	oai:doaj.org-article:03d060e52e484e8ca0036d4f49f006ff
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spelling	oai:doaj.org-article:03d060e52e484e8ca0036d4f49f006ff2021-11-19T00:03:44ZPlanar Dual-Band Branch-Line Coupler With Large Frequency Ratio2169-353610.1109/ACCESS.2020.2974235https://doaj.org/article/03d060e52e484e8ca0036d4f49f006ff2020-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9000607/https://doaj.org/toc/2169-3536This work presents a novel planar branch-line coupler topology developed for dual-band operation using an E-shaped impedance transformer network to supplant the conventional microstrip line. Explicit closed-form design equations for dual-band operation are derived using the ABCD matrices. The studied coupler features a large dual-band frequency ratio with a compact size. A prototype coupler centered at 1 and 8 GHz is first presented and experimentally examined to demonstrate the large frequency ratio. Further, another prototype coupler centered at 2.4 and 5.2 GHz for potential WLAN applications is also developed and experimentally characterized. Measurements and simulations for both prototype couplers show good performance within the studied dual-band frequencies.Lei XiaJia-Lin LiBaidenger Agyekum TwumasiPeng LiuShan-Shan GaoIEEEarticleDual-bandbranch-line couplerE-shaped impedance transformerlarge frequency ratioElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 8, Pp 33188-33195 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Dual-band branch-line coupler E-shaped impedance transformer large frequency ratio Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Dual-band branch-line coupler E-shaped impedance transformer large frequency ratio Electrical engineering. Electronics. Nuclear engineering TK1-9971 Lei Xia Jia-Lin Li Baidenger Agyekum Twumasi Peng Liu Shan-Shan Gao Planar Dual-Band Branch-Line Coupler With Large Frequency Ratio
description	This work presents a novel planar branch-line coupler topology developed for dual-band operation using an E-shaped impedance transformer network to supplant the conventional microstrip line. Explicit closed-form design equations for dual-band operation are derived using the ABCD matrices. The studied coupler features a large dual-band frequency ratio with a compact size. A prototype coupler centered at 1 and 8 GHz is first presented and experimentally examined to demonstrate the large frequency ratio. Further, another prototype coupler centered at 2.4 and 5.2 GHz for potential WLAN applications is also developed and experimentally characterized. Measurements and simulations for both prototype couplers show good performance within the studied dual-band frequencies.
format	article
author	Lei Xia Jia-Lin Li Baidenger Agyekum Twumasi Peng Liu Shan-Shan Gao
author_facet	Lei Xia Jia-Lin Li Baidenger Agyekum Twumasi Peng Liu Shan-Shan Gao
author_sort	Lei Xia
title	Planar Dual-Band Branch-Line Coupler With Large Frequency Ratio
title_short	Planar Dual-Band Branch-Line Coupler With Large Frequency Ratio
title_full	Planar Dual-Band Branch-Line Coupler With Large Frequency Ratio
title_fullStr	Planar Dual-Band Branch-Line Coupler With Large Frequency Ratio
title_full_unstemmed	Planar Dual-Band Branch-Line Coupler With Large Frequency Ratio
title_sort	planar dual-band branch-line coupler with large frequency ratio
publisher	IEEE
publishDate	2020
url	https://doaj.org/article/03d060e52e484e8ca0036d4f49f006ff
work_keys_str_mv	AT leixia planardualbandbranchlinecouplerwithlargefrequencyratio AT jialinli planardualbandbranchlinecouplerwithlargefrequencyratio AT baidengeragyekumtwumasi planardualbandbranchlinecouplerwithlargefrequencyratio AT pengliu planardualbandbranchlinecouplerwithlargefrequencyratio AT shanshangao planardualbandbranchlinecouplerwithlargefrequencyratio
_version_	1718420648424898560

Planar Dual-Band Branch-Line Coupler With Large Frequency Ratio

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