(Solved): Figure 2. Common Source NMOS Amplifier with a load capacitor 1. Assuming the load capacitor is no ...

Figure 2. Common Source NMOS Amplifier with a load capacitor 1. Assuming the load capacitor is not present (which is the dominant capacitor for upper end of the frequency), what would be the upper $3\mathrm{dB}$ frequency formula based on the parasitic ${\mathrm{C}}_{\mathrm{gs}}$ and ${\mathrm{C}}_{\mathrm{gd}}$ capacitors of the transistor $M1$ ? Use small signal equivalent to illustrate. Note that you may need to formulate the Miller capacitance first before obtaining the expression for upper $3\mathrm{dB}$ frequency.