CONCLUSION

In this work we initially design a Si-MOS based CO in both integer and fractional topologies. Pseudo-capacitances with various fractional orders have been designed and used in the tank circuit of CO. The variation of oscillator properties with fractional order has been discussed in detail. CO made using FOC’s consumed comparatively more power and noise. Thus, an optimal design of CO has been made using CNTFET. The CNTFET based CO consumes much less power compared to both conventional and fractional silicon based oscillators. To tap the advantages of CNTFET and fractional circuitry a CNTFET based fractional order CO is designed and simulated. The CNTFET fractional CO along with low power consumption exerted a greater control over phase and oscillation frequency by changing the fractional order, α. It has been shown through SPICE and MATLAB simulations that the fractional oscillator based on CNTFET outperforms MOS based fractional oscillator in achieving a wider CPZ for the same fractional order.