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A low-phase-noise wide-band CMOS quadrature VCO for multi-standard RF front-ends

Fard, Ali and Andreani, Pietro LU (2005) In 2005 IEEE Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers. p.539-542
Abstract
A low phase noise CMOS LC quadrature VCO (QVCO) with a wide frequency range of 3.6-5.6 GHz, designed in a standard 0.18 /spl mu/m process for multi-standard front-ends, is presented. A significant advantage of the topology is the larger oscillation amplitude when compared to other conventional QVCO structures. The QVCO is compared to a double cross-coupled LC-tank differential oscillator, both in theory and experiments, for evaluation of its phase noise, providing a good insight into its performance. The measured data displays up to 2 dBc/Hz lower phase noise in the 1/f/sup 2/ region for the QVCO, when consuming twice the current of the differential VCO, based on an identical LC-tank. Experimental results on the QVCO show a phase noise... (More)
A low phase noise CMOS LC quadrature VCO (QVCO) with a wide frequency range of 3.6-5.6 GHz, designed in a standard 0.18 /spl mu/m process for multi-standard front-ends, is presented. A significant advantage of the topology is the larger oscillation amplitude when compared to other conventional QVCO structures. The QVCO is compared to a double cross-coupled LC-tank differential oscillator, both in theory and experiments, for evaluation of its phase noise, providing a good insight into its performance. The measured data displays up to 2 dBc/Hz lower phase noise in the 1/f/sup 2/ region for the QVCO, when consuming twice the current of the differential VCO, based on an identical LC-tank. Experimental results on the QVCO show a phase noise level of -127.5 dBc/Hz at 3 MHz offset from a 5.6 GHz carrier while dissipating 8 mA of current, resulting in a figure of merit of 181.3 dBc/Hz. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
2005 IEEE Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers.
pages
539 - 542
external identifiers
  • Scopus:27644584418
ISSN
1529-2517
ISBN
0-7803-8983-2
DOI
10.1109/RFIC.2005.1489868
language
English
LU publication?
no
id
be51dba6-edfc-450b-9ef8-f5cdceaee0ba (old id 1051318)
alternative location
http://ieeexplore.ieee.org/iel5/9955/32008/01489868.pdf?tp=&isnumber=32008&arnumber=1489868&punumber=9955
date added to LUP
2008-04-01 14:02:21
date last changed
2016-10-13 04:32:27
@misc{be51dba6-edfc-450b-9ef8-f5cdceaee0ba,
  abstract     = {A low phase noise CMOS LC quadrature VCO (QVCO) with a wide frequency range of 3.6-5.6 GHz, designed in a standard 0.18 /spl mu/m process for multi-standard front-ends, is presented. A significant advantage of the topology is the larger oscillation amplitude when compared to other conventional QVCO structures. The QVCO is compared to a double cross-coupled LC-tank differential oscillator, both in theory and experiments, for evaluation of its phase noise, providing a good insight into its performance. The measured data displays up to 2 dBc/Hz lower phase noise in the 1/f/sup 2/ region for the QVCO, when consuming twice the current of the differential VCO, based on an identical LC-tank. Experimental results on the QVCO show a phase noise level of -127.5 dBc/Hz at 3 MHz offset from a 5.6 GHz carrier while dissipating 8 mA of current, resulting in a figure of merit of 181.3 dBc/Hz.},
  author       = {Fard, Ali and Andreani, Pietro},
  isbn         = {0-7803-8983-2},
  issn         = {1529-2517},
  language     = {eng},
  pages        = {539--542},
  series       = {2005 IEEE Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers.},
  title        = {A low-phase-noise wide-band CMOS quadrature VCO for multi-standard RF front-ends},
  url          = {http://dx.doi.org/10.1109/RFIC.2005.1489868},
  year         = {2005},
}