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International Journal of Microwave Science and Technology
Volume 2013 (2013), Article ID 312618, 6 pages
http://dx.doi.org/10.1155/2013/312618
Review Article

Performance and Trends in Millimetre-Wave CMOS Oscillators for Emerging Wireless Applications

1Tyndall National Institute, Lee Maltings, Dyke Parade, Cork, Ireland
2Department of Electrical and Electronic Engineering, University College Cork, Cork, Ireland

Received 14 December 2012; Accepted 19 February 2013

Academic Editor: Ramesh Pokharel

Copyright © 2013 Marius Voicu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper reports the latest advances on millimeter-wave CMOS voltage-controlled oscillators (VCOs). Current state-of-the-art implementations are reviewed, and their performances are compared in terms of phase noise and figure of merit. Low power and low phase noise LC-VCO and ring oscillator designs are analyzed and discussed. Design and performance trends over the last decade are provided and discussed. The paper shows how for the higher range of millimeter-waves (>60 GHz) the performances of ring oscillators become comparable with those of LC-VCOs.