Summary
International Symposium on Antennas and Propagation
2011
Session Number:FrP2
Session:
Number:FrP2-51
Balanced Sub-1-V MOSFET Colpitts-VCO with Varactor-Integrated Feedback Capacitors
Man-Young Jeon, Woon-Suek Baek, Ha-Woon Lee, Young-Ki Cho,
pp.-
Publication Date:2011/10/25
Online ISSN:2188-5079
Summary:
This study integrates a MOS varactor into one of feedback capacitors in the half circuit of a balanced Colpitts VCO. This leads to significant increase of the negative resistance of the balanced Colpitts VCO, thereby ensuring stable start-up of oscillation even at the sub-1-V supply voltage and causing further signal swing in the tank.