Maximum Power The y-parameters of a two-port network operating in the sinusoidal steady state are y11

¼ 20  j15 mS, y12

¼ y21

¼

j12 ms, and y22

¼ 10  j20 mS. The input port is driven by an ac voltage sourceVS ¼ 120ff25 VðrmsÞ.Findthe output port load impedance ZLthat will draw the maximum average power from the network.