worldofnanax.blogg.se - Smith chart examples

The magnitude of  remains constant, therefore VSWR are not changed by additional lengthĬonstant, subtract (rotate clockwise direction) from The input impedance looking towards the load end at a distance z’ from the load is The value of the r-circle passing through the intersection of the  circle and the positive real axis equals the standing wave ratio The angle measured from the positive real axis, of the line drawn from the origin through the point representing z L equal .ģ. All the  circles are centered at the origin and their radii vary from 0 to 1.Ģ. The value of the r-circle passing through the point Pm on negative real axis is numerically equal to the 1/Sġ. The value of the r-circle passing through the point PM is numerically equal to the standing wave ratio

The centers of all x-circles lie on the r = 1 lines x    x 2įor x > 0 (inductive reactance) lie above r axis.

The r-circles becomes progressively smaller as r increases from 0 toward  ending at ( r = 1, i = 0) point for open circuit.

The r = 0 circle, unity radius, centre at origin.

The centers of all r-circles lie on the r axis.

Where i and r and x are normalized resistance and normalized reactance Where r and x are normalized resistance and normalized reactance The normalized load impedance can be written as In a lossless transmission line, the voltage reflection coefficient is defined as