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As an electronic technician with very little knowledge in RF theory and design, it's extremely useful for learning basic concepts. I can throw a circuit together and make perfect measurements in a few minutes, without owning thousands of dollars worth of RF test gear.No idea, I don't use simulators - but RF designs are heavily dependent on the layout, and a simulator can't simulate the layout - so I wouldn't have thought it would be very useful?.
Perfect measurements of an imperfect circuit model. You should regard the models as approximations of reality. Don't forget to take account of parasitic resistance, capacitance and inductance in your sims. These become more significant in RF sims than at low frequencies.I can throw a circuit together and make perfect measurements
Thanks for the concern but this is getting a little off topic guys. I have a descent understanding of the components not on the schematic as they say.
I need to understand the math used in RF design and verify my math through simulation.
There are software simulation tools specific for RF design, such as Genesys (for professionals and probably not cheap). I just want to know if there are any limitations with LTspice at RF (as far as transistor modelling).No idea, I don't use simulators - but RF designs are heavily dependent on the layout, and a simulator can't simulate the layout - so I wouldn't have thought it would be very useful?.
Yes I get that already.The math is no different to lower frequencies - it's reality where things change (and can change massively).
Thanks, that answers my question.I have used LTSpice many times at 100mhz and got pretty good results compared with the real PCB.