Smith chart tool8/10/2023 Regarding the impedance, it is better to use normalised quantities z = Z Z 0, where is an impedance, Z 0 is a lossless transmission line impedance. To do so, impedance or admittance circles should be depicted in the chart. ![]() A useful aim of the Smith Chart is that it can convert reflection coefficients to the normal impedances and reverse. And θ is the angle between the reflection coefficient vector and the chart horizontal diameter, -180<θ<180. The reflection coefficient is in the polar form Г = | Г | e j θ, where | Г | is the reflection coefficient magnitude radius from the plot centre. ![]() The Smith Chart is based on the polar system of the voltage reflection coefficient Г. ![]() Smith, and despite of being developed so long ago, it is still in use and is the most famous and helpful tool among engineers. It is a very useful tool for solving the problems of RF engineers with regards to transmission lines.
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