How can i simulate Group_delay in ADS2003A?

I want to simulate the group delay,but i do not know how to use the funtion of the group delay in detail.Anybody can help me?
Regards,
John

use S parameter simulator , then in it check the group delay box

and then u can view it in the data window after simulation

thats it


khouly

Thank you for your help!If I want to use a equation to simulate it,how can i express the funtion?