Design and Simulation a low phase noise CMOS LC VCO for IEEE802.11a WLAN applicatons

This work proposes a structure of AMOS-varactors. A 5GHz LC-VCO designed in TSMC 0.18μm CMOS to improve phase noise and tuning range performance. The tuning range is from 5.05GHZ to 5.88GHz.The phase noise is -154.9dBc/Hz at 1MHz offset from the carrier. It meets the requirements for IEEE 802.11a WLAN standard.

Keywords:

CMOS LC VCO , spiral inductor , varactor phase noise , tuning range