On Sat, May 10, 2025 at 09:16 AM, Dan wrote:
Are there any files, messages etc, that detail how to plot the IP3 of an rf amplifier using LTspice?
Plain old common sense (which might not be correct) suggests that you would want to use a .FOUR command to extract the amplitudes, and then use it with time-domain (.TRAN) simulations where you .STEP the amplitude.? Have you thought about doing that?
?
How would you do it if you had the device on a lab bench?? What equipment would you use and how would you set it up and measure it?? Maybe you would do the same thing in LTspice.
?
For RF circuits, obtaining good models is often the most difficult part.
?
Andy
?
