Compact Wideband 3 × 3 Nolen Matrix With Couplers Integrated With Phase Shifters

Xu, Y; Zhu, H; Guo, YJ

Compact Wideband 3 × 3 Nolen Matrix With Couplers Integrated With Phase Shifters

Xu, Y Zhu, H Guo, YJ

Permalink

Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Microwave and Wireless Technology Letters, 2024, 34, (2), pp. 159-162
Issue Date:: 2024-02-01

Closed Access

	Filename	Description	Size
	1691157.pdf	Published version	2.6 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Xu, Y
dc.contributor.author	Zhu, H
dc.contributor.author	Guo, YJ
dc.date.accessioned	2024-08-07T04:34:10Z
dc.date.available	2024-08-07T04:34:10Z
dc.date.issued	2024-02-01
dc.identifier.citation	IEEE Microwave and Wireless Technology Letters, 2024, 34, (2), pp. 159-162
dc.identifier.issn	2771-957X
dc.identifier.issn	2771-9588
dc.identifier.uri	http://hdl.handle.net/10453/180204
dc.description.abstract	— This letter presents a compact wideband 3 × 3 Nolen matrix composed of couplers with arbitrary output phase differences. A cross-junction is introduced into the traditional branch line coupler to realize the desired output power ratio and phase difference. Meanwhile, this also increases the degree of freedom by introducing multiple variables. A genetic algorithm is utilized to obtain the optimum solution for each branch. Two couplers with coupling values of 0.707 (3 dB) and 0.82 (1.77 dB) and with output phase differences of 60◦ and 30◦ are designed, fabricated, and measured, respectively. Finally, a wideband 3 × 3 Nolen matrix with compact size is realized, which achieves equal amplitude output and equal phase difference output (0◦, 120◦, and −120◦) within the 34.3% fractional bandwidth (FBW) while ensuring lower amplitude imbalance and phase imbalance. Simulation and measurement results show good agreement over the operating frequency band.
dc.language	English
dc.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation.ispartof	IEEE Microwave and Wireless Technology Letters
dc.relation.isbasedon	10.1109/LMWT.2023.3341791
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Compact Wideband 3 × 3 Nolen Matrix With Couplers Integrated With Phase Shifters
dc.type	Journal Article
utslib.citation.volume	34
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
pubs.organisational-group	University of Technology Sydney/All Manual Groups
pubs.organisational-group	University of Technology Sydney/All Manual Groups/Global Big Data Technologies Research Centre (GBDTC)
utslib.copyright.status	closed_access	*
dc.date.updated	2024-08-07T04:34:07Z
pubs.issue	2
pubs.publication-status	Published
pubs.volume	34
utslib.citation.issue	2

Abstract:

— This letter presents a compact wideband 3 × 3 Nolen matrix composed of couplers with arbitrary output phase differences. A cross-junction is introduced into the traditional branch line coupler to realize the desired output power ratio and phase difference. Meanwhile, this also increases the degree of freedom by introducing multiple variables. A genetic algorithm is utilized to obtain the optimum solution for each branch. Two couplers with coupling values of 0.707 (3 dB) and 0.82 (1.77 dB) and with output phase differences of 60◦ and 30◦ are designed, fabricated, and measured, respectively. Finally, a wideband 3 × 3 Nolen matrix with compact size is realized, which achieves equal amplitude output and equal phase difference output (0◦, 120◦, and −120◦) within the 34.3% fractional bandwidth (FBW) while ensuring lower amplitude imbalance and phase imbalance. Simulation and measurement results show good agreement over the operating frequency band.

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

http://hdl.handle.net/10453/180204