By Topic

Low Phase-Noise and Low-Power CMOS VCO Constructed in Current-Reused Configuration

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

2 Author(s)
Chin-Lung Yang ; Chang Gung Univ., Tao-Yuan ; Yi-Chyun Chiang

A Ku-band CMOS voltage-controlled oscillator (VCO) constructed in a modified current-reused configuration is presented in this letter. Two dc level shifters combined into two metal-insulator-metal capacitors are adopted to solve the transconductance and load mismatch problems of the conventional current-reused VCO for obtaining more symmetrical oscillation signals and lowering the phase noise of oscillator. A prototype was designed and measured to verify the design concept. The measurement results demonstrate the central oscillation signal of 16 GHz to be associated with the 900 MHz tuning range and -111 dBc/Hz phase noise at 1 MHz offset. The power consumption of the VCO core is only 8.1 mW. The measurement result evaluated by means of a figure of merit is about -186.8 dBc/Hz.

Published in:

IEEE Microwave and Wireless Components Letters  (Volume:18 ,  Issue: 2 )