Abstract
A compact millimeter-wave oscillator in 90nm CMOS is presented. The proposed triple-push three-stage mutually coupled ring oscillator architecture significantly enhances the phase noise, output power, and power consumption. The measured phase noise is -114dBc/Hz at 10MHz offset with 28.6mW DC power consumption. The tuning range spans from 204.3GHz to 215GHz with the maximum output power of -7dBm at 210.8GHz. The FOM is -185.8dBc/Hz at 10MHz offset, and it remains below -179dBc/Hz within the entire tuning range.