Wide-Band Single Stage Source Coupled CMOS Voltage Controlled Oscillator (VCO) using 0.18 ?m CMOS Technology

This paper describes a design and implementation of Single Stage Source Coupled CMOS Voltage Controlled Oscillator based on Ring Oscillator. Efforts are made to design a CMOS Voltage controlled oscillator having wide frequency range with High frequency, Low power. So, the CMOS VCO designed here having a Single Stage Source Coupled CMOS VCO. The design is optimization and simulates on TSMC 180nm CMOS process at 1.8 V supply voltages. The results show that the oscillation frequency of VCO varies between 78.46MHz to 287.93MHz and power consumption may varies between 0.03?W to 0.86?W.