The unit circle is the zero conductance circle (and is also the zero resistance circle) and the susceptance is read from the scale adjacent to the unit circle again noting that susceptances in the top...The unit circle is the zero conductance circle (and is also the zero resistance circle) and the susceptance is read from the scale adjacent to the unit circle again noting that susceptances in the top half of the Smith chart need to incorporate a negative sign, and the susceptance scale is identified by the susceptance values becoming larger approaching the s/c point.
