voltage frequency curve

how to get vco voltage-frequency transfer curve by using ADS?
i used to do the simulation using Hspice, sweep the control
voltage and save the freq (by using .meas function), and handle the data by
using origin.

i want to know how to do that in ADS, thanks!

use harmonic balanced simulation engin
and sweep parameter is the control voltage , and in data window , plot the frequncy 1st harmonic
this is the frequncy voltage charecteristics

wish this help u

khouly