Smith chart in ADS

doubel click on the smith chart , then select plot options , the uncheck auto scale , and make the max as u like

wish this help

khouly

but now there is nothing in S.C. I just wonder that how to draw it in S.C. Shall I use some expression?

add this expression

VSWR=2
absL=(VSWR-1)/(VSWR+1)
vswrCir=circle(0,absL,500)

then plot vswrCir in the smith chart

Thanks boy! Finally I drew the circle, but the it is a rather thick circle, can I make it more accurate?

Change "Trace type to Scatter" and change "symble type to Dot". That will do. The way ADS plots complex numbers in the smitch chart is to use small ciciles not lines

Thank you very much. I really appreciate your help.