Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

A time-variant analysis of the 1/f2 phase noise in CMOS parallel LC-tank quadrature oscillators

Andreani, Pietro LU (2006) In IEEE Transactions on Circuits and Systems Part 1: Regular Papers 53(8). p.1749-1760
Abstract
This paper presents a study of 1/f/sup 2/ phase noise in quadrature oscillators built by connecting two differential LC-tank oscillators in a parallel fashion. The analysis clearly demonstrates the necessity of adopting a time-variant theory of phase noise, where a more simplistic, time-invariant approach fails to explain numerical simulation results even at the qualitative level. Two topologies of 5-GHz parallel quadrature oscillators are considered, and compact but nevertheless highly general, closed-form formulas are derived for the phase noise caused by the losses in the LC-tanks and by the noisy currents in the MOS transistors. A large number of spectreRF simulations, covering a wide range of working conditions for the oscillators, is... (More)
This paper presents a study of 1/f/sup 2/ phase noise in quadrature oscillators built by connecting two differential LC-tank oscillators in a parallel fashion. The analysis clearly demonstrates the necessity of adopting a time-variant theory of phase noise, where a more simplistic, time-invariant approach fails to explain numerical simulation results even at the qualitative level. Two topologies of 5-GHz parallel quadrature oscillators are considered, and compact but nevertheless highly general, closed-form formulas are derived for the phase noise caused by the losses in the LC-tanks and by the noisy currents in the MOS transistors. A large number of spectreRF simulations, covering a wide range of working conditions for the oscillators, is used to validate the theoretical analysis. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
IEEE Transactions on Circuits and Systems Part 1: Regular Papers
volume
53
issue
8
pages
1749 - 1760
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:33747855563
ISSN
1549-8328
DOI
10.1109/TCSI.2006.879011
language
English
LU publication?
yes
id
e1999e17-16a8-461c-b774-c81205b82530 (old id 1049686)
date added to LUP
2016-04-01 11:46:17
date last changed
2020-12-08 04:02:24
@article{e1999e17-16a8-461c-b774-c81205b82530,
  abstract     = {This paper presents a study of 1/f/sup 2/ phase noise in quadrature oscillators built by connecting two differential LC-tank oscillators in a parallel fashion. The analysis clearly demonstrates the necessity of adopting a time-variant theory of phase noise, where a more simplistic, time-invariant approach fails to explain numerical simulation results even at the qualitative level. Two topologies of 5-GHz parallel quadrature oscillators are considered, and compact but nevertheless highly general, closed-form formulas are derived for the phase noise caused by the losses in the LC-tanks and by the noisy currents in the MOS transistors. A large number of spectreRF simulations, covering a wide range of working conditions for the oscillators, is used to validate the theoretical analysis.},
  author       = {Andreani, Pietro},
  issn         = {1549-8328},
  language     = {eng},
  number       = {8},
  pages        = {1749--1760},
  publisher    = {IEEE - Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Circuits and Systems Part 1: Regular Papers},
  title        = {A time-variant analysis of the 1/f2 phase noise in CMOS parallel LC-tank quadrature oscillators},
  url          = {http://dx.doi.org/10.1109/TCSI.2006.879011},
  doi          = {10.1109/TCSI.2006.879011},
  volume       = {53},
  year         = {2006},
}