Ultracompact Multichannel Bandpass Filter Based on Trimode Dielectric-Loaded Cavities

Xu, JX; Zhang, XY; Li, HY; Yang, Y; Dutkiewicz, E; Xue, Q

Ultracompact Multichannel Bandpass Filter Based on Trimode Dielectric-Loaded Cavities

Xu, JX Zhang, XY Li, HY Yang, Y

Dutkiewicz, E

Xue, Q

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Transactions on Microwave Theory and Techniques, 2020, 68, (5), pp. 1668-1677
Issue Date:: 2020-05-01

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Field	Value	Language
dc.contributor.author	Xu, JX
dc.contributor.author	Zhang, XY
dc.contributor.author	Li, HY
dc.contributor.author	Yang, Y https://orcid.org/0000-0001-7439-2156
dc.contributor.author	Dutkiewicz, E https://orcid.org/0000-0002-4268-9286
dc.contributor.author	Xue, Q
dc.date.accessioned	2021-02-09T04:11:07Z
dc.date.available	2021-02-09T04:11:07Z
dc.date.issued	2020-05-01
dc.identifier.citation	IEEE Transactions on Microwave Theory and Techniques, 2020, 68, (5), pp. 1668-1677
dc.identifier.issn	0018-9480
dc.identifier.issn	1557-9670
dc.identifier.uri	http://hdl.handle.net/10453/145979
dc.description.abstract	© 1963-2012 IEEE. In this article, a method for designing multichannel bandpass filters (BPFs) based on trimode dielectric-loaded cavities is presented. A large number of BPFs are integrated as one multichannel BPF with multiple inputs and multiple outputs, resulting in an ultracompact size. The cubic trimode dielectric-loaded cavities are utilized with the TE101, TE011, and TM110 modes resonating at the same frequency and orthogonal to each other. Feeding probes and coupling probes are properly arranged where the three modes in one cavity can be excited for different BPF channels without interference with each other. Consequently, excellent isolation among multiple channels can be obtained. The multichannel BPF is designed based on a 3-D structure, which can be easily extended to higher filter orders with a larger number of channels to satisfy different requirements in wireless systems. For demonstration, a 12-channel BPF is fabricated and measured, which exhibits good filtering responses of each channel and high isolation among channels. Significant size reduction is achieved compared to conventional multiple single-channel filters, which is potential in high-integration base station applications.
dc.language	English
dc.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation.ispartof	IEEE Transactions on Microwave Theory and Techniques
dc.relation.isbasedon	10.1109/TMTT.2020.2967042
dc.rights	© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.title	Ultracompact Multichannel Bandpass Filter Based on Trimode Dielectric-Loaded Cavities
dc.type	Journal Article
utslib.citation.volume	68
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	1005 Communications Technologies
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2021-02-09T04:11:00Z
pubs.issue	5
pubs.publication-status	Published
pubs.volume	68
utslib.citation.issue	5

Abstract:

© 1963-2012 IEEE. In this article, a method for designing multichannel bandpass filters (BPFs) based on trimode dielectric-loaded cavities is presented. A large number of BPFs are integrated as one multichannel BPF with multiple inputs and multiple outputs, resulting in an ultracompact size. The cubic trimode dielectric-loaded cavities are utilized with the TE101, TE011, and TM110 modes resonating at the same frequency and orthogonal to each other. Feeding probes and coupling probes are properly arranged where the three modes in one cavity can be excited for different BPF channels without interference with each other. Consequently, excellent isolation among multiple channels can be obtained. The multichannel BPF is designed based on a 3-D structure, which can be easily extended to higher filter orders with a larger number of channels to satisfy different requirements in wireless systems. For demonstration, a 12-channel BPF is fabricated and measured, which exhibits good filtering responses of each channel and high isolation among channels. Significant size reduction is achieved compared to conventional multiple single-channel filters, which is potential in high-integration base station applications.

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http://hdl.handle.net/10453/145979