A K-band high PAE wide tuning range VCO Using triple-coupled LC tanks
Yeo, Kiat Seng
Lim, Wei Meng
Date of Issue2013
School of Electrical and Electronic Engineering
This brief presents a fully differential K-band voltage-controlled oscillator (VCO) using commercial 0.18-μm SiGe BiCMOS process. By using triple-coupled LC tanks with strong coupling and varactor-controlled capacitor bank, the proposed VCO simultaneously achieves a wide tuning range, low phase noise, high output RF power, and high power-added efficiency (PAE). The implemented VCO demonstrates an oscillation frequency range from 22.50 to 26.23 GHz, a frequency tuning range of 15.3%, a phase noise of −107.7 dBc/Hz at 1-MHz offset, an output power of−3.1 dBm, PAE of 5.97%, and a figure of merit of -186.9 dBc/Hz with a dc power of 8.2 mW.
DRNTU::Engineering::Electrical and electronic engineering
IEEE transactions on circuits and systems II: express briefs
© 2013 IEEE. This is the author created version of a work that has been peer reviewed and accepted for publication by IEEE Transactions on Circuits and Systems II: Express Briefs, IEEE. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1109/TCSII.2013.2281751].