1.8-GHz low-phase-noise CMOS VCO using optimized hollow spiral inductors

FREE-DOWNLOAD J Craninckx… – Solid-State Circuits, research Journal …,
Abstract— A completely integrated 1.8-GHz low-phase-noise voltage-controlled oscillator
(VCO) has been realized in a stan- dard silicon digital CMOS process. The design relies heavily
on the integrated spiral inductors which have been realized with only two metal layers .