A stacking voltage-controlled oscillator and injection-locked frequency divider for low-power and 12-GHz operation

We proposed a voltage-controlled oscillator (VCO) and an injection-locked frequency divider (ILFD) at a stacking topology. The proposed circuit has its optimized performance and low power consumption. The circuit was designed in a 0.13 μm CMOS technology. The VCO´s output frequency is from 11.2 GHz to 13.4 GHz while the ILFD´s output frequency is from 5.6 GHz to 6.7 GHz. The total power consumption is 3.67 mW at a supply voltage of 1.5 V. Moreover, the phase noises for the VCO and ILFD are -112 and -118 dBc/Hz at 1 MHz offset, respectively.