Nonlinear Analysis of a Cross-Coupled Quadrature Harmonic Oscillator

Torsten Djurhuus; Viktor Krozer; Jens Vidkjær; Tom Keinicke Johansen

Nonlinear Analysis of a Cross-Coupled Quadrature Harmonic Oscillator

Torsten Djurhuus
, Viktor Krozer
, Jens Vidkjær
, Tom Keinicke Johansen

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

We derive the dynamic equations governing the cross-coupled quadrature oscillator leading to an expression for the trade-off between signal quadrature and close-in phase noise. The theory shows that nonlinearity in the coupling transconductance results in AM-PM noise close to the carrier, which increases with the coupling strength. The results are compared with SPECTRE RF simulations.

Original language	English
Title of host publication	Intern. Workshop on NonLinear Microwaves and Millimetre waves INMMIC
Publication date	2004
Publication status	Published - 2004

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title = "Nonlinear Analysis of a Cross-Coupled Quadrature Harmonic Oscillator",

abstract = "We derive the dynamic equations governing the cross-coupled quadrature oscillator leading to an expression for the trade-off between signal quadrature and close-in phase noise. The theory shows that nonlinearity in the coupling transconductance results in AM-PM noise close to the carrier, which increases with the coupling strength. The results are compared with SPECTRE RF simulations.",

keywords = "nonlinear analysis, oscillator analysis, quadrature oscillators",

author = "Torsten Djurhuus and Viktor Krozer and Jens Vidkj{\ae}r and Johansen, \{Tom Keinicke\}",

year = "2004",

language = "English",

booktitle = "Intern. Workshop on NonLinear Microwaves and Millimetre waves INMMIC",

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T1 - Nonlinear Analysis of a Cross-Coupled Quadrature Harmonic Oscillator

AU - Djurhuus, Torsten

AU - Krozer, Viktor

AU - Vidkjær, Jens

AU - Johansen, Tom Keinicke

PY - 2004

Y1 - 2004

N2 - We derive the dynamic equations governing the cross-coupled quadrature oscillator leading to an expression for the trade-off between signal quadrature and close-in phase noise. The theory shows that nonlinearity in the coupling transconductance results in AM-PM noise close to the carrier, which increases with the coupling strength. The results are compared with SPECTRE RF simulations.

AB - We derive the dynamic equations governing the cross-coupled quadrature oscillator leading to an expression for the trade-off between signal quadrature and close-in phase noise. The theory shows that nonlinearity in the coupling transconductance results in AM-PM noise close to the carrier, which increases with the coupling strength. The results are compared with SPECTRE RF simulations.

KW - nonlinear analysis, oscillator analysis, quadrature oscillators

M3 - Article in proceedings

BT - Intern. Workshop on NonLinear Microwaves and Millimetre waves INMMIC

ER -

Nonlinear Analysis of a Cross-Coupled Quadrature Harmonic Oscillator

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