A K-BAND LOW PHASE NOISE AND LOW POWER CMOS VOLTAGE-CONTROLLED OSCILLATOR

A K-band differential cross-coupled inductance-capacitance (LC) voltage-controlled oscillator (VCO) is implemented in 0.18-mu m CMOS process. To accomplish high quality (Q) factor LC-tank at K-band, a slab inductor with high Q is adopted. The VCO can be tuned from 23.1 to 23.38 GHz and the core dc power consumption is 11.33 mW from 1 V power supply. The phase noise is 2109.04 dBc/Hz at 1 MHz offset, and the calculated figure of merit (FoM) is 2185.79 dBc/ Hz. At low supply voltage mode of 0.65 V, the phase noise is 2106.015 dBc/Hz at 1 MHz offset and the FoM is 2189.76 dBc/Hz. (C) 2016 Wiley Periodicals, Inc.