A 22-GHz Quadrature VCO in 0.25microns CMOS

This 20+ GHz VCO uses 0.25microns 3-V CMOS process with thick metal inductor level and high resistivity substrate. The measured center frequency ranges from 21 to 23 GHz. The measured SSB phase noise ranging from -105 to -107 dBc/Hz at 1 MHz offset. Tuning range is about 1 GHz and power consumption is 2.7 V x 10 mA.