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For designing RF PA, is it required to be S11 & S22 to be less than 10 dB on the whole BW?
Note: BW= 2 to 3 GHzView attachment 138534
A 10 dB return loss will give you 90% through power. Which is a typical spec criteria.
In your case, you will lose a lot of power from 2- 2.4 GHz.
Tq for information
In the attachment, after optimisationView attachment 138549
I design the input and the output match network using the optimal input and output impedance from loadpull, but after that S-parameters especially S11 and S22 is always larger than -10dB. And how can I deal with it ?
Hi
In designing RF power Amplifier, What does affect S11 & S22 Input and output return loss?