A modified multiphase oscillator with improved phase noise performance

Alberts, A.C. (Antonie); Sinha, Saurabh

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dc.contributor.author	Alberts, A.C. (Antonie)
dc.contributor.author	Sinha, Saurabh
dc.date.accessioned	2017-03-14T12:48:21Z
dc.date.issued	2017-04
dc.description.abstract	This paper investigates the factors that influence the phase noise performance of an oscillator and proposes a modified structure for improved phase noise performance. A single and multiphase oscillator analysis using the harmonic balance method is presented. The modified structure increases the oscillation amplitude without increasing the bias current and leads to improved phase noise performance as well as decreased power consumption. The modification is analyzed and the figure of merit of the oscillator shows a significant improvement of 21 dB. Numerical and analytical solutions are presented to predict the oscillation frequency and phase noise. The analytical solution is used to approximate the first harmonic and can be combined with numerical simulations to extrapolate phase noise performance.	en_ZA
dc.description.department	Electrical, Electronic and Computer Engineering	en_ZA
dc.description.embargo	2018-04-30
dc.description.librarian	am2017	en_ZA
dc.description.sponsorship	The measurements relating to this work were enabled through the support of SAAB Electronic Defence Systems (EDS). Funding was also received from the National Research Foundation (NRF), Department of Science and Technology, South Africa. NRF funding was for measurement equipment – a millimeter-wave vector network analyzer (under grant ID: 72321) and wafer-prober (under grant ID: 78580). NRF funding (under grant ID: 72321) also allowed collaboration with Prof Luca Larcher, Università degli studi di Modena e Reggio Emilia, Italy.	en_ZA
dc.description.uri	http://www.elsevier.com/locate/mejo	en_ZA
dc.identifier.citation	Alberts, AC & Sinha, S 2017, 'A modified multiphase oscillator with improved phase noise performance', Microelectronics Journal, vol. 62, pp. 21-29.	en_ZA
dc.identifier.issn	0026-2692 (print)
dc.identifier.issn	1879-2391 (online)
dc.identifier.other	10.1016/j.mejo.2017.02.001
dc.identifier.uri	http://hdl.handle.net/2263/59425
dc.language.iso	en	en_ZA
dc.publisher	Elsevier	en_ZA
dc.rights	© 2017 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Microelectronics Journal. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Microelectronics Journal, vol. 62, pp. 21-29, 2017. doi : 10.1016/j.mejo.2017.02.001.	en_ZA
dc.subject	Harmonic analysis	en_ZA
dc.subject	Oscillators	en_ZA
dc.subject	Phase noise	en_ZA
dc.subject	Simulation program with integrated circuit emphasis (SPICE)	en_ZA
dc.title	A modified multiphase oscillator with improved phase noise performance	en_ZA
dc.type	Postprint Article	en_ZA