An 8-10-GHz low-loss image-reject HTS mixer based on cascaded Josephson junctions

Zhang, T; Du, J; Guo, YJ

An 8-10-GHz low-loss image-reject HTS mixer based on cascaded Josephson junctions

Zhang, T Du, J Guo, YJ

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Microwave and Wireless Components Letters, 2021, 31, (8), pp. 945-948
Issue Date:: 2021-08-01

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Field	Value	Language
dc.contributor.author	Zhang, T
dc.contributor.author	Du, J
dc.contributor.author	Guo, YJ
dc.date.accessioned	2022-03-09T21:53:00Z
dc.date.available	2022-03-09T21:53:00Z
dc.date.issued	2021-08-01
dc.identifier.citation	IEEE Microwave and Wireless Components Letters, 2021, 31, (8), pp. 945-948
dc.identifier.issn	1531-1309
dc.identifier.issn	1558-1764
dc.identifier.uri	http://hdl.handle.net/10453/155120
dc.description.abstract	A 7.8-9.8-GHz low-loss high-Tc superconducting (HTS) image-reject Josephson junction mixer is presented in this letter. Image rejection is achieved using low-loss image rejection filters and a pair of parallel dual-mode resonators. Three cascaded Josephson junctions are monolithically integrated with impedance matching networks and bandpass/low-pass filters on a single chip for low loss and compactness. The implementation of series junction array increased the overall junction equivalent impedance, so that a better impedance matching is achieved. Measurement results of the novel HTS mixer showed a low conversion loss at 5.5 dB and an image-reject ratio over 30 dB within the desired frequency. The proposed cascaded junction configuration provides a new approach for impedance matching in HTS mixer designs, and the demonstrated mixer performance makes it an ideal candidate for X -band radar systems.
dc.language	English
dc.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation.ispartof	IEEE Microwave and Wireless Components Letters
dc.relation.isbasedon	10.1109/LMWC.2021.3086533
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0205 Optical Physics, 0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.title	An 8-10-GHz low-loss image-reject HTS mixer based on cascaded Josephson junctions
dc.type	Journal Article
utslib.citation.volume	31
utslib.for	0205 Optical Physics
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	2022-03-09T21:52:57Z
pubs.issue	8
pubs.publication-status	Published
pubs.volume	31
utslib.citation.issue	8

Abstract:

A 7.8-9.8-GHz low-loss high-Tc superconducting (HTS) image-reject Josephson junction mixer is presented in this letter. Image rejection is achieved using low-loss image rejection filters and a pair of parallel dual-mode resonators. Three cascaded Josephson junctions are monolithically integrated with impedance matching networks and bandpass/low-pass filters on a single chip for low loss and compactness. The implementation of series junction array increased the overall junction equivalent impedance, so that a better impedance matching is achieved. Measurement results of the novel HTS mixer showed a low conversion loss at 5.5 dB and an image-reject ratio over 30 dB within the desired frequency. The proposed cascaded junction configuration provides a new approach for impedance matching in HTS mixer designs, and the demonstrated mixer performance makes it an ideal candidate for X -band radar systems.

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http://hdl.handle.net/10453/155120