3-D Printed Filtering Rat-Race Couplers Using Hemispherical Cavity Resonator

Zhang, G; Feng, S; Chen, Y; Yang, Y; Zhu, H; Zhou, X; Hong, J; Tang, W; Yang, J

3-D Printed Filtering Rat-Race Couplers Using Hemispherical Cavity Resonator

Zhang, G Feng, S Chen, Y Yang, Y

Zhu, H Zhou, X Hong, J Tang, W Yang, J

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Transactions on Microwave Theory and Techniques, 2023, 71, (11), pp. 4922-4932
Issue Date:: 2023-11-01

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Field	Value	Language
dc.contributor.author	Zhang, G
dc.contributor.author	Feng, S
dc.contributor.author	Chen, Y
dc.contributor.author	Yang, Y https://orcid.org/0000-0001-7439-2156
dc.contributor.author	Zhu, H
dc.contributor.author	Zhou, X
dc.contributor.author	Hong, J
dc.contributor.author	Tang, W
dc.contributor.author	Yang, J
dc.date.accessioned	2024-02-12T22:39:13Z
dc.date.available	2024-02-12T22:39:13Z
dc.date.issued	2023-11-01
dc.identifier.citation	IEEE Transactions on Microwave Theory and Techniques, 2023, 71, (11), pp. 4922-4932
dc.identifier.issn	0018-9480
dc.identifier.issn	1557-9670
dc.identifier.uri	http://hdl.handle.net/10453/175600
dc.description.abstract	In this article, a new approach for designing 3-D printed single-and dual-band filtering rat-race couplers based on hemispherical cavities is presented, for the first time. By constructing two types of multiplexing multimode topologies in dual-cavity configurations, both single-and dual-band filtering rat-race couplers are developed. In these designs, a pair of TM201 degenerate modes form the passband for single-band operation, while dual-band operation is realized by exciting an additional pair of TE101 degenerate modes. Due to the natural E-field distributions of these modes, the desired 0° and 180° phase differences and isolations can be realized between output ports without additional matching circuits. By elaborately placing the internal coupling slots and input-output ports, desired filtering responses and phase requirements can be flexibly attained for both single-and dual-band filtering rat-race coupler designs. For demonstration, two prototypes are well implemented as monoblock circuits using 3-D-printing technology. Compared with the up-to-date designs, the proposed works exhibit the merits of compact size, high Q-factor, lightweight, good single-and dual-band filtering responses with controllable bandwidths and center frequencies, nice phase difference characteristics as well as flexible extendable topologies.
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.2023.3284266
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.subject.classification	5103 Classical physics
dc.title	3-D Printed Filtering Rat-Race Couplers Using Hemispherical Cavity Resonator
dc.type	Journal Article
utslib.citation.volume	71
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	1005 Communications Technologies
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
utslib.copyright.status	closed_access	*
dc.date.updated	2024-02-12T22:39:11Z
pubs.issue	11
pubs.publication-status	Published
pubs.volume	71
utslib.citation.issue	11

Abstract:

In this article, a new approach for designing 3-D printed single-and dual-band filtering rat-race couplers based on hemispherical cavities is presented, for the first time. By constructing two types of multiplexing multimode topologies in dual-cavity configurations, both single-and dual-band filtering rat-race couplers are developed. In these designs, a pair of TM201 degenerate modes form the passband for single-band operation, while dual-band operation is realized by exciting an additional pair of TE101 degenerate modes. Due to the natural E-field distributions of these modes, the desired 0° and 180° phase differences and isolations can be realized between output ports without additional matching circuits. By elaborately placing the internal coupling slots and input-output ports, desired filtering responses and phase requirements can be flexibly attained for both single-and dual-band filtering rat-race coupler designs. For demonstration, two prototypes are well implemented as monoblock circuits using 3-D-printing technology. Compared with the up-to-date designs, the proposed works exhibit the merits of compact size, high Q-factor, lightweight, good single-and dual-band filtering responses with controllable bandwidths and center frequencies, nice phase difference characteristics as well as flexible extendable topologies.

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http://hdl.handle.net/10453/175600