Ultralow phase-noise differential oscillator using quarter stepped-impedance resonator

Cai, Z; Yang, Y; Tang, X; Li, Z; Lu, D; Liu, Y

Ultralow phase-noise differential oscillator using quarter stepped-impedance resonator

Cai, Z

Yang, Y

Tang, X

Li, Z

Lu, D

Liu, Y

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Publication Type:: Journal Article
Citation:: IEEE Microwave and Wireless Components Letters, 2019, 29 (12), pp. 806 - 809
Issue Date:: 2019-12-01

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Field	Value	Language
dc.contributor.author	Cai, Z https://orcid.org/0000-0001-8471-2539	en_US
dc.contributor.author	Yang, Y https://orcid.org/0000-0001-7439-2156	en_US
dc.contributor.author	Tang, X https://orcid.org/0000-0001-9799-4109	en_US
dc.contributor.author	Li, Z https://orcid.org/0000-0002-2989-4568	en_US
dc.contributor.author	Lu, D https://orcid.org/0000-0002-3311-419X	en_US
dc.contributor.author	Liu, Y	en_US
dc.date.issued	2019-12-01	en_US
dc.identifier.citation	IEEE Microwave and Wireless Components Letters, 2019, 29 (12), pp. 806 - 809	en_US
dc.identifier.issn	1531-1309	en_US
dc.identifier.uri	http://hdl.handle.net/10453/137560
dc.description.abstract	© 2019 IEEE. In this letter, an ultralow phase-noise differential oscillator is proposed using a balanced feedback filter based on quarter stepped-impedance resonators (QSIRs). Phase-noise performance of the designed oscillators can be significantly improved by taking advantage of high peak group delay, improved stopband suppression, and differential configuration of the proposed feedback filter. To verify the hypothesis and compare the phase-noise performance among single-ended and differential oscillators, both the prototypes are designed, fabricated, and measured. The measured results show that the designed single-ended and differential oscillators are operating at 1.953 GHz. The differential oscillator shows not only a good balanced output power of 8.29 dBm with a measured high suppression of 40.07 dB on the second harmonic but also a superior low phase-noise performance of −130.19 dBc/Hz at a frequency offset of 100 kHz. To the best of our knowledge, this is the best phase-noise performance among the state-of-the-art works designed on planar hybrid integrated circuits at a similar frequency range.	en_US
dc.relation.ispartof	IEEE Microwave and Wireless Components Letters	en_US
dc.relation.isbasedon	10.1109/LMWC.2019.2946308	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Networking & Telecommunications	en_US
dc.title	Ultralow phase-noise differential oscillator using quarter stepped-impedance resonator	en_US
dc.type	Journal Article
utslib.citation.volume	12	en_US
utslib.citation.volume	29	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	1005 Communications Technologies	en_US
utslib.for	0205 Optical Physics	en_US
pubs.embargo.period	Not known	en_US
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	*
pubs.issue	12	en_US
pubs.publication-status	Published	en_US
pubs.volume	29	en_US

Abstract:

© 2019 IEEE. In this letter, an ultralow phase-noise differential oscillator is proposed using a balanced feedback filter based on quarter stepped-impedance resonators (QSIRs). Phase-noise performance of the designed oscillators can be significantly improved by taking advantage of high peak group delay, improved stopband suppression, and differential configuration of the proposed feedback filter. To verify the hypothesis and compare the phase-noise performance among single-ended and differential oscillators, both the prototypes are designed, fabricated, and measured. The measured results show that the designed single-ended and differential oscillators are operating at 1.953 GHz. The differential oscillator shows not only a good balanced output power of 8.29 dBm with a measured high suppression of 40.07 dB on the second harmonic but also a superior low phase-noise performance of −130.19 dBc/Hz at a frequency offset of 100 kHz. To the best of our knowledge, this is the best phase-noise performance among the state-of-the-art works designed on planar hybrid integrated circuits at a similar frequency range.

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http://hdl.handle.net/10453/137560