The Smith Chart is the graphical tool for solving the problems with transmission line in RF engineering. The Smith chart can be used to display different parameters like Impedance, Admittance, Reflection coefficient, Noise figure Circles, Stability etc.
The Smith Chart is plotted on complex reflection coefficient plane in two dimension. It is scaled in normalized impedance/ admittance. Smith chart can be divided in sub categories like Z smith chart, Y smith chart, ZY smith chart.