Title :
A wide tuning range CMOS VCO using variable inductor
Author :
Yoshihara, Y. ; Sugawara, H. ; Ito, H. ; Okada, K. ; Masu, K.
Author_Institution :
Precision & Intelligence Lab., Tokyo Inst. of Technol., Yokohama, Japan
Abstract :
The paper presents a novel wide tuning range CMOS VCO using an on-chip variable inductor as an additional variable element to extend tuning range. The VCO was fabricated using standard 0.35 μm CMOS process with three metal layers, and could be tuned widely from 2.13 GHz to 3.28 GHz without degradation of phase noise.
Keywords :
CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; circuit tuning; inductors; integrated circuit design; voltage-controlled oscillators; 2.13 to 3.28 GHz; CMOS VCO; on-chip variable inductor; phase noise; wide tuning range VCO; Actuators; Circuit optimization; Conductors; Inductance; Inductors; Magnetic flux; Phase noise; Spirals; Tuning; Voltage-controlled oscillators;
Conference_Titel :
Silicon Monolithic Integrated Circuits in RF Systems, 2004. Digest of Papers. 2004 Topical Meeting on
Print_ISBN :
0-7803-8703-1
DOI :
10.1109/SMIC.2004.1398223
