Two-Way Waveguide Diplexer and Its Application to Diplexing In-Band Full-Duplex Antenna

Lin, JY; Yang, Y; Wong, SW; Li, X; Wang, L; Dutkiewicz, E

Two-Way Waveguide Diplexer and Its Application to Diplexing In-Band Full-Duplex Antenna

Lin, JY Yang, Y

Wong, SW Li, X Wang, L Dutkiewicz, E

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Transactions on Microwave Theory and Techniques, 2022, PP, (99)
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Lin, JY
dc.contributor.author	Yang, Y https://orcid.org/0000-0001-7439-2156
dc.contributor.author	Wong, SW
dc.contributor.author	Li, X
dc.contributor.author	Wang, L
dc.contributor.author	Dutkiewicz, E https://orcid.org/0000-0002-4268-9286
dc.date.accessioned	2023-03-24T02:41:36Z
dc.date.available	2023-03-24T02:41:36Z
dc.date.issued	2022-01-01
dc.identifier.citation	IEEE Transactions on Microwave Theory and Techniques, 2022, PP, (99)
dc.identifier.issn	0018-9480
dc.identifier.issn	1557-9670
dc.identifier.uri	http://hdl.handle.net/10453/168310
dc.description.abstract	A design of a diplexing in-band full-duplex (IBFD) slot antenna based on the quadruple-mode resonator (QMR) is presented for the first time. First, a two-way waveguide diplexer integration using QMR is designed. Four waveguide modes, namely, TE<inline-formula> <tex-math notation="LaTeX">$_{011}$</tex-math> </inline-formula>, TE<inline-formula> <tex-math notation="LaTeX">$_{101}$</tex-math> </inline-formula>, TM<inline-formula> <tex-math notation="LaTeX">$_{\mathrm{210,}}$</tex-math> </inline-formula> and TM<inline-formula> <tex-math notation="LaTeX">$_{120}$</tex-math> </inline-formula>, are primarily used. These four modes are modal orthogonal to each other in a single QMR. Each of the quadruple modes can be independently manipulated with low mutual interference with other modes. Taking advantage of this characteristic, a two-way waveguide diplexer integration can be implemented with four independent frequency channels. In each diplexer, the downlink channel is dominated by fundamental mode TE<inline-formula> <tex-math notation="LaTeX">$_{011}$</tex-math> </inline-formula>/TE<inline-formula> <tex-math notation="LaTeX">$_{101}$</tex-math> </inline-formula>, while the uplink channel is dominated by high-order mode TM<inline-formula> <tex-math notation="LaTeX">$_{210}$</tex-math> </inline-formula>/TM<inline-formula> <tex-math notation="LaTeX">$_{120}$</tex-math> </inline-formula>. By cascading QMRs, higher order frequency responses are achieved with expected coupling coefficient (<inline-formula> <tex-math notation="LaTeX">$K)$</tex-math> </inline-formula> and external quality factor (<inline-formula> <tex-math notation="LaTeX">$Q_{{\text{e}}})$</tex-math> </inline-formula>. Based on the proposed two-way diplexer concept, a diplexing IBFD antenna with a turnstile junction is designed by replacing the inputs with a cross-coupled radiating slot. It integrates the filtering, diplexing, orthomode transducing, and radiating functions into a single element. Four channels can work independently to transmit/receive two orthogonal signals. The two-way waveguide diplexer and diplexing IBFD waveguide antenna with a second-order response were implemented and tested for the proof-of-concept.
dc.language	English
dc.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation	http://purl.org/au-research/grants/arc/LP210300004
dc.relation.ispartof	IEEE Transactions on Microwave Theory and Techniques
dc.relation.isbasedon	10.1109/TMTT.2022.3218100
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.title	Two-Way Waveguide Diplexer and Its Application to Diplexing In-Band Full-Duplex Antenna
dc.type	Journal Article
utslib.citation.volume	PP
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/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	*
dc.date.updated	2023-03-24T02:41:35Z
pubs.issue	99
pubs.publication-status	Published
pubs.volume	PP
utslib.citation.issue	99

Abstract:

A design of a diplexing in-band full-duplex (IBFD) slot antenna based on the quadruple-mode resonator (QMR) is presented for the first time. First, a two-way waveguide diplexer integration using QMR is designed. Four waveguide modes, namely, TE

$_{011}$

, TE

$_{101}$

, TM

$_{\mathrm{210,}}$

and TM

$_{120}$

, are primarily used. These four modes are modal orthogonal to each other in a single QMR. Each of the quadruple modes can be independently manipulated with low mutual interference with other modes. Taking advantage of this characteristic, a two-way waveguide diplexer integration can be implemented with four independent frequency channels. In each diplexer, the downlink channel is dominated by fundamental mode TE

$_{011}$

/TE

$_{101}$

, while the uplink channel is dominated by high-order mode TM

$_{210}$

/TM

$_{120}$

. By cascading QMRs, higher order frequency responses are achieved with expected coupling coefficient (

$K)$

and external quality factor (

$Q_{{\text{e}}})$

. Based on the proposed two-way diplexer concept, a diplexing IBFD antenna with a turnstile junction is designed by replacing the inputs with a cross-coupled radiating slot. It integrates the filtering, diplexing, orthomode transducing, and radiating functions into a single element. Four channels can work independently to transmit/receive two orthogonal signals. The two-way waveguide diplexer and diplexing IBFD waveguide antenna with a second-order response were implemented and tested for the proof-of-concept.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/168310