Simulation analysis of 2.4 GHz MEMS/NEMS voltage controlled oscillator

This paper presents the design and analysis of a novel 2.4 GHz Voltage Controlled Oscillator (VCO), with amplitude control and Q enhancement circuit, for wireless communication applications. The variable capacitors and the inductors were designed using ANSYS and imported through DAC components in ADS (Advanced Design software). Accurate simulation of the VCO was performed in the software environments and the results are provided. To enhance the quality factor and to control the oscillation amplitude, additional CMOS circuits have been implemented. This VCO operates at 2.4 GHz, achieves a phase noise of -119dBc/Hz, 3 MHz far from the carrier frequency. The VCO produces frequency tuning from 1.82 to 2.60 GHz (32.5%) with an ultra low power consumption of 73 μW. The output power level of the VCO is -9 dBm, with an improved predicted quality factor of 77.