Hi Aaron,
thank you for taking the time to providing valuable suggestions; the confusion is probably my fault, since it seems that the terminology is far from being universally accepted (in the literature "power match" is used with both meanings depending on the source, as far as I can tell), that's why I mentioned the author, but it would have been clearer to just explain what I meant in plain words.
Just to be sure:
Quote:Now I realise you are talking about maximum output power vs. minimum reflection.
,
--> maximum output power vs.
50Ω match.
Unfortunately, I don't have detailed description of the internal circuitry of the PA driver, therefore I cannot simulate it; all things considered, I think I will go for a 50Ω match at the output of the PA driver (that seems to be your suggestion too, if I got it right), possibly iterativelly adjusted to correct the overall flatness.
Quote:Furthermore, Neither the gain flatness nor the actual harmonics coming out of the PA Driver is necessarily better with an impedance match as it strongly depends on the internal designs of the individual components.
sorry, once again you are perfectly correct, but my sentence was not clear: I meant that power (loadline) match would have affected the
SAW filter's flatness. I just verified this yesterday, by observing that the S11 of the SAWF is strongly degraded when a complex impedance is presented at its output, instead of the prescribed 50Ω.
Thanks again for your help
Regard
Mirko