Title :
4.6 GHz CMOS voltage-controlled oscillator
Author :
Fujimoto, R. ; Tachibana, R. ; Yoshida, H. ; Kojima, K. ; Otaka, S.
Author_Institution :
Corporate Res. & Dev., Toshiba Corp., Kawasaki, Japan
fDate :
6/20/2002 12:00:00 AM
Abstract :
A 4.6 GHz voltage-controlled oscillator (VCO) was designed and fabricated using 0.25 μm CMOS technology. A careful circuit design based on a trade-off between frequency-tuning range and phase-noise characteristics, realised both a sufficient frequency-tuning range of 230 MHz and a low phase-noise characteristic of -118.1 dBc/Hz at 1 MHz offset. This phase-noise characteristic is superior to previously reported VCOs
Keywords :
CMOS analogue integrated circuits; MMIC oscillators; circuit tuning; field effect MMIC; phase noise; transceivers; voltage-controlled oscillators; wireless LAN; 0.25 micron; 4.6 GHz; CMOS; WLAN; analogue building blocks; frequency-tuning range; phase-noise characteristics; transceiver; voltage-controlled oscillator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020444
