Miniaturized full‐metal bandpass filter and multiplexer using circular spiral resonator

Chen, R; Zhu, L; Wong, S; Lin, J; Yang, Y; Li, Y; He, Y

Miniaturized full‐metal bandpass filter and multiplexer using circular spiral resonator

Chen, R Zhu, L Wong, S Lin, J

Yang, Y

Li, Y He, Y

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Publisher:: Institution of Engineering and Technology (IET)
Publication Type:: Journal Article
Citation:: IET Microwaves, Antennas and Propagation, 2021, 15, (6), pp. 606-619
Issue Date:: 2021-03-23

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Field	Value	Language
dc.contributor.author	Chen, R
dc.contributor.author	Zhu, L
dc.contributor.author	Wong, S
dc.contributor.author	Lin, J https://orcid.org/0000-0002-3554-7722
dc.contributor.author	Yang, Y https://orcid.org/0000-0001-7439-2156
dc.contributor.author	Li, Y
dc.contributor.author	He, Y
dc.date.accessioned	2022-05-11T06:17:19Z
dc.date.available	2022-05-11T06:17:19Z
dc.date.issued	2021-03-23
dc.identifier.citation	IET Microwaves, Antennas and Propagation, 2021, 15, (6), pp. 606-619
dc.identifier.issn	1350-2417
dc.identifier.issn	1751-8733
dc.identifier.uri	http://hdl.handle.net/10453/157237
dc.description.abstract	This article proposes a new class of miniaturized full-metal bandpass filters (BPFs) and multiplexers using circular spiral resonators (CSRs). The proposed metal CSR is supported on the metal cavity's wall, which serves as a short-end resonator. This CSR has obvious size reduction compared to traditional cavity resonators and owns low insertion loss, high power capacity and high selectivity. Then, three BPFs using two, three and four CSRs are designed and analysed. All the proposed filters have transmission zeroes (TZs) produced by the source-load coupling without introducing additional coupling structure. The proposed CSR is further used to design diplexer and quadruplexer. All the proposed filters have ultra-compact size, especially, the size of quadruplexer is only 0.23λ 0 × 0.081λ 0 × 0.067λ 0. Finally, the fourth-order filter and quadruplexer are fabricated and measured, the good agreement between the measured results and the simulated results validates the proposed design concepts.
dc.language	English
dc.publisher	Institution of Engineering and Technology (IET)
dc.relation.ispartof	IET Microwaves, Antennas and Propagation
dc.relation.isbasedon	10.1049/mia2.12085
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.title	Miniaturized full‐metal bandpass filter and multiplexer using circular spiral resonator
dc.type	Journal Article
utslib.citation.volume	15
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	open_access	*
pubs.consider-herdc	false
dc.date.updated	2022-05-11T06:17:16Z
pubs.issue	6
pubs.publication-status	Published
pubs.volume	15
utslib.citation.issue	6

Abstract:

This article proposes a new class of miniaturized full-metal bandpass filters (BPFs) and multiplexers using circular spiral resonators (CSRs). The proposed metal CSR is supported on the metal cavity's wall, which serves as a short-end resonator. This CSR has obvious size reduction compared to traditional cavity resonators and owns low insertion loss, high power capacity and high selectivity. Then, three BPFs using two, three and four CSRs are designed and analysed. All the proposed filters have transmission zeroes (TZs) produced by the source-load coupling without introducing additional coupling structure. The proposed CSR is further used to design diplexer and quadruplexer. All the proposed filters have ultra-compact size, especially, the size of quadruplexer is only 0.23λ 0 × 0.081λ 0 × 0.067λ 0. Finally, the fourth-order filter and quadruplexer are fabricated and measured, the good agreement between the measured results and the simulated results validates the proposed design concepts.

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http://hdl.handle.net/10453/157237