I have an equation that describes the linearity of my amplifier.
and I want to make a plot based on the equation.
How could I do that in ADS?
this the equation I have vo=a1+a2vi+a3vi^2, and I want to plot vo vs vi...
Hopefully it's not too late to get back to you. Thank you for your help. The SDD example is really helpful.
I tried out the example, but it doesn't work as what I expect. Compression point, OIP2, and OIP3 do not match to my original amplifier.
I have the equations set up as follows.. K1, K2, and K3 are calculated base on gain, OIP2, and OIP3. Do I input anything wrong here?
I would like to come up with a DC nonlinear model of an amplifier. I calculated k1, k2, and k3 based on gain, OIP2, and OIP3 of the amp. And now, I need to simulate the output voltage equation vo=k1vi+k2vi^2+k3vi^3. I use SDD2P block to simulate(as shown in the pictures below), but I could not get similar OIP2 and OIP3 values by doing HB simulations. Does anyone know what I've done wrong in the simulation setup?
The main page keeps saying there's no new reply for me. That's why I didn't open the page. Sorry!
I use vi=_v1. I set up the variables as shown in picture. Really appreciate your help!!
vi=Acos(w1t)+Bcos(w1t); vo=k1vi+k2vi^2+k3vi^3
Gain=20log(K1) -> get K1
OIP2=2Po-IM2, IM2=10log((A^2*K2)/(2*z0))[dBm] -> know OIP2 and Po, so get K2
2OIP3=3Po-IM3, IM3=10log((A^3*K3*3/4)/(2*z0))[dBm] ->know OIP3 and Po, so get K3
Hope it makes sense.