Electrical & Computer
Smith Chart Lab
The Smith chart turns the messy algebra of impedance matching into one picture. Drag the normalized resistance r and reactance x and the point traces the chart through Γ = (z−1)/(z+1): the centre is a perfect match (VSWR 1), the rim is total reflection (|Γ| = 1), and the dashed circle is your constant-VSWR contour. The readouts give |Γ|, VSWR and return loss so the RF intuition finally clicks.
1.0 + j0.5
z (normalized)
0.243
|Γ|
1.64
VSWR
12.3 dB
Return loss
Every impedance maps to one point on the Smith chart via Γ = (z−1)/(z+1). The centre is a perfect match (Γ=0, VSWR 1); the rim is total reflection (|Γ|=1). The dashed circle is your constant-VSWR contour.
How to use this simulation
The Smith chart turns the messy algebra of impedance matching into one picture. Drag the normalized resistance r and reactance x and the point traces the chart through Γ = (z−1)/(z+1): the centre is a perfect match (VSWR 1), the rim is total reflection (|Γ| = 1), and the dashed circle is your constant-VSWR contour. The readouts give |Γ|, VSWR and return loss so the RF intuition finally clicks.
Everything runs in your browser — no sign-up, no download. Change a value and the result updates instantly, so you can build a feel for how each input shapes the outcome. It pairs with Crameleon's practice exams and step sheets when you want to go from intuition to working the problems.