By Topic

An extremely low power 2 GHz CMOS LC VCO for wireless communication applications

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
$33 $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

4 Author(s)
Han-il Lee ; Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA ; Tae-young Choi ; S. Mohammadi ; L. P. B. Katehi

An extremely low power low phase noise CMOS LC voltage controlled oscillator (VCO) has been fully integrated in a commercial 0.18 mum CMOS process. To achieve low power and low phase noise, a complementary NMOS and PMOS cross-coupled differential LC structure is used. The LC tank is composed of octagonal-shaped inductors with 2 mum Al metal and standard NMOS varactors. The measured phase noise is -111 dBc/Hz at 1 MHz offset from a 1.87 GHz carrier when the VCO core consumes only a 0.5 mW power from 0.9 V supply. The power consumption of 0.5 mW is the lowest reported in the literature for LC VCOs. This VCO has a figure of merit of -180 dBc/Hz and achieves a 7 % tuning range with a control voltage ranging from 0 ~ 1.4 V, while maintaining a tuning sensitivity of 93 MHz/V over its entire frequency range

Published in:

The European Conference on Wireless Technology, 2005.

Date of Conference:

3-4 Oct. 2005