Cart (Loading....) | Create Account
Close category search window
 

Selection and modeling of integrated RF varactors on a 0.35-μm BiCMOS technology

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Kelly, S.C. ; Silvaco Int., Santa Clara, CA, USA ; Power, J.A. ; O'Neill, M.

Integrated varactors are becoming a common feature for many RF designs and in particular RF voltage controlled oscillators (VCOs). Optimization of the quality of both the inductor and the varactor from the VCO core is essential. This work details the characterization and optimization of a number of varactor types available on a typical submicron BiCMOS process. Engineering of the bottom plate of the varactor was used to optimize the quality factor of the varactor. No additional mask layers or processing steps were required to achieve this. Integrated isolated diode varactors with quality factors of 30 at 2 GHz have been demonstrated with tuning capacitance ranges of 2.5. Integrated MOS capacitor varactors with quality factors of 50 at 2 GHz have been demonstrated with tuning capacitance range of 5. A spice model for one of the varactor types is further developed in this paper. Accurate prediction of varactor performance over voltage bias and frequency was achieved.

Published in:

Semiconductor Manufacturing, IEEE Transactions on  (Volume:17 ,  Issue: 2 )

Date of Publication:

May 2004

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.