A modified multiphase oscillator with improved phase noise performance

Antonie C. Alberts; Saurabh Sinha

doi:10.1016/j.mejo.2017.02.001

A modified multiphase oscillator with improved phase noise performance

Antonie C. Alberts, Saurabh Sinha

Faculty of Engineering and the Built Environment

University of Pretoria

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

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.

Original language	English
Pages (from-to)	21-29
Number of pages	9
Journal	Microelectronics Journal
Volume	62
DOIs	https://doi.org/10.1016/j.mejo.2017.02.001
Publication status	Published - 1 Apr 2017

Keywords

Harmonic analysis
Oscillators
Phase noise
SPICE

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Surfaces, Coatings and Films
Electrical and Electronic Engineering

Access to Document

10.1016/j.mejo.2017.02.001

Cite this

@article{4128b1dde7eb4dae8d36380151ed8267,

title = "A modified multiphase oscillator with improved phase noise performance",

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.",

keywords = "Harmonic analysis, Oscillators, Phase noise, SPICE",

author = "Alberts, {Antonie C.} and Saurabh Sinha",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2017",

month = apr,

day = "1",

doi = "10.1016/j.mejo.2017.02.001",

language = "English",

volume = "62",

pages = "21--29",

journal = "Microelectronics Journal",

issn = "0026-2692",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - A modified multiphase oscillator with improved phase noise performance

AU - Alberts, Antonie C.

AU - Sinha, Saurabh

PY - 2017/4/1

Y1 - 2017/4/1

N2 - 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.

AB - 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.

KW - Harmonic analysis

KW - Oscillators

KW - Phase noise

KW - SPICE

UR - http://www.scopus.com/inward/record.url?scp=85012249132&partnerID=8YFLogxK

U2 - 10.1016/j.mejo.2017.02.001

DO - 10.1016/j.mejo.2017.02.001

M3 - Article

AN - SCOPUS:85012249132

SN - 0026-2692

VL - 62

SP - 21

EP - 29

JO - Microelectronics Journal

JF - Microelectronics Journal

ER -

A modified multiphase oscillator with improved phase noise performance

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this