1 Design for maximum gain at 5 GHz which has characteristic impedance of 50 Ω. The
'S' parameters are S11 = 0.614â -167.14°, S21= 2.187â 32.4Âș, S12 = 0.046â 65°, S22 =
0.716â -83°. Check the stability test and design the matching sections with open
circuited shunt stubs.