Q3. (i) Calculate the ABCD parameters of the two-port, shown dashed in Figure 3, comprising L1, C2 and L3. 30% V, Rs www 12 L₁ L3 V₂ RL V₁ C2 Figure 3 (ii) Hence, or otherwise, calculate the voltage transfer function T(s) = V2(s)/N(S). 20% (iii) With L, L3 1 H, C2 2 F, and R. R=1002, is this a third-order Butterworth filter? 20% (iv) Choose the component values in the circuit of Figure 3 such that the filter has a maximally flat passband with maximum attenuation amax 0.5 dB in fs fp (where fp=(200+2) MHz) when the source and load resistors are both 100 Q. 20% (v) Sketch the magnitude and phase response of T(jw). Plot the magnitude in dB. 10%