A Balanced-to-Balanced In-Phase Filtering Power Divider with High Selectivity and Isolation

Wei, F; Yang, ZJ; Qin, PY; Guo, YJ; Li, B; Shi, XW

A Balanced-to-Balanced In-Phase Filtering Power Divider with High Selectivity and Isolation

Wei, F Yang, ZJ Qin, PY

Guo, YJ

Li, B Shi, XW

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Microwave Theory and Techniques, 2019, 67 (2), pp. 683 - 694
Issue Date:: 2019-02-01

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Field	Value	Language
dc.contributor.author	Wei, F	en_US
dc.contributor.author	Yang, ZJ	en_US
dc.contributor.author	Qin, PY https://orcid.org/0000-0001-8861-4143	en_US
dc.contributor.author	Guo, YJ https://orcid.org/0000-0001-6008-9682	en_US
dc.contributor.author	Li, B	en_US
dc.contributor.author	Shi, XW	en_US
dc.date.available	2021-02-01T18:04:56Z
dc.date.issued	2019-02-01	en_US
dc.identifier.citation	IEEE Transactions on Microwave Theory and Techniques, 2019, 67 (2), pp. 683 - 694	en_US
dc.identifier.issn	0018-9480	en_US
dc.identifier.uri	http://hdl.handle.net/10453/132270
dc.description.abstract	© 1963-2012 IEEE. In this paper, a balanced-to-balanced in-phase filtering power divider (FPD) is proposed, which can realize a two-way equal power division with high selectivity and isolation. The design of the proposed FPD is primarily based on microstrip/slotline transition structures and slotline T-junction. A U-type microstrip feed line integrated with a stepped-impedance slotline resonator is adopted at the input and output ports, which makes the differential-mode (DM) responses independent of the common-mode (CM) ones. Meanwhile, superior DM transmission and CM suppression are achieved intrinsically, thereby simplifying the design procedure significantly. By employing slotline resonators loaded with resistors, the isolation between the two output ports can be improved greatly. In addition, a DM passband with a sharp filtering performance is realized by introducing the microstrip stub-loaded resonators (SLRs). By changing the electrical length of the open stub of the SLR, the fractional bandwidth is controllable. In order to verify the feasibility of the proposed design method, two prototype circuits of the proposed FPDs with different bandwidths are fabricated and measured. Good agreement between the simulation and measurement results is observed.	en_US
dc.relation.ispartof	IEEE Transactions on Microwave Theory and Techniques	en_US
dc.relation.isbasedon	10.1109/TMTT.2018.2880903	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Networking & Telecommunications	en_US
dc.title	A Balanced-to-Balanced In-Phase Filtering Power Divider with High Selectivity and Isolation	en_US
dc.type	Journal Article
utslib.citation.volume	2	en_US
utslib.citation.volume	67	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	1005 Communications Technologies	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access	*
pubs.issue	2	en_US
pubs.publication-status	Published	en_US
pubs.volume	67	en_US

Abstract:

© 1963-2012 IEEE. In this paper, a balanced-to-balanced in-phase filtering power divider (FPD) is proposed, which can realize a two-way equal power division with high selectivity and isolation. The design of the proposed FPD is primarily based on microstrip/slotline transition structures and slotline T-junction. A U-type microstrip feed line integrated with a stepped-impedance slotline resonator is adopted at the input and output ports, which makes the differential-mode (DM) responses independent of the common-mode (CM) ones. Meanwhile, superior DM transmission and CM suppression are achieved intrinsically, thereby simplifying the design procedure significantly. By employing slotline resonators loaded with resistors, the isolation between the two output ports can be improved greatly. In addition, a DM passband with a sharp filtering performance is realized by introducing the microstrip stub-loaded resonators (SLRs). By changing the electrical length of the open stub of the SLR, the fractional bandwidth is controllable. In order to verify the feasibility of the proposed design method, two prototype circuits of the proposed FPDs with different bandwidths are fabricated and measured. Good agreement between the simulation and measurement results is observed.

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http://hdl.handle.net/10453/132270