Momentum complex port simulation

Hi my friends.

I use ads to simulate a antenna,I set two ports,One port is Internal port,other is ground.The internal port real part is 14 Ohm and Imaginary part is 144 Ohm,Howerever smith plot show the normalization Z0 is 50Ohm,How am i debugged the antenna?How am i lookking S11 plot?

What you observed is correct.

this Photo is error，
smith plot is error,return loss is error and phase plot is error,because i measured the antenna.