<math> X_{short} = Z_0 tan (2\pi L_s / \lambda_g) = -X_{in} </math>
{{Note| When running a network analysis of a large interconnected circuit, you can easily change the port nodes and find the impedance/admittance or reflection coefficient looking into any segment of your circuit. Table data usually prove more useful than graphs in such cases.}}
== Single-Stub Impedance Matching Using a Shunt Short Stub==