A 128.76-129.56 GHz Fundamental Voltage Control Oscillator in 65 nm CMOS

Abstract

A 128.76GHz-129.56GHz fundamental voltage control oscillator (VCO) is presented in this paper. An improved transformer-coupled resonant tank that consists a transformer-based switch inductor and a differential varactor using the common-cathode structure is used to achieve the high quality factor of the differential varactor and improve the tuning range of this VCO. This VCO is fabricated on 65 nm CMOS process. It consumes 11.2 mW from a 1.4 V supply. The measurement results show that the tuning range is 0.8 GHz and the output power ranges from −11.8 dBm to −10.6 dBm.