Inductance-Tuned LC-VCO for Reconfigurable RF Circuit Design

Yoshiaki Yoshihara, Hirotaka Sugawara, Hiroyuki Ito, Kenichi Okada, Kazuya Masu
2004 IEICE Electronics Express  
This paper presents a wide tuning range LC-VCO using an on-chip variable inductor to extend tuning range. The VCO was fabricated using 0.35 µm CMOS process. The tuning range was found to be 37.8% without degradation of phase noise by inductance tuning. Wide tunable VCO with an on-chip variable inductor is one of the key circuits of reconfigurable RF circuit.
doi:10.1587/elex.1.156 fatcat:fk6qhco6p5hsxpviq767ktss34