A four port network has the S-parameter matrix given below: 0.3e/450 0.6e-190 0.5e/45 0 0 0.3e/60 0 0.3e/45 0.6e/90 0.1e/90 0 0.7e-145 0.1e190 0.7e-j45 0.3e/60 0 What is the reflection coefficient seen at port 2 if a short circuit is placed at the terminal plane of port 1, and Port 3 and Port4 are terminated with matched loads? What is the reflected wave voltage on port 2 if incident wave voltage on port2 is 1.2e/30 volt?