Hello all.
I have implemented for first time an amplifier. It seems to work quite well, under my specification.
But I am facing too much ripple.
It is the first (of two) stage of a 25dBm power amplifier with 787MHz cut-off frequency.
The gain seems to work as expected but still pending to measure the output level and distorsion.
Anyhow it introduces (I think) too much ripple that I would like to cancel before continuing the project.
Attached the PCB detail and the frequency response from a scalar network analyzer.
Note the copper short-circuit was not there for the measurement.
Do you have any advise for me?
Thank you.
Br.
I have implemented for first time an amplifier. It seems to work quite well, under my specification.
But I am facing too much ripple.
It is the first (of two) stage of a 25dBm power amplifier with 787MHz cut-off frequency.
The gain seems to work as expected but still pending to measure the output level and distorsion.
Anyhow it introduces (I think) too much ripple that I would like to cancel before continuing the project.
Attached the PCB detail and the frequency response from a scalar network analyzer.
Note the copper short-circuit was not there for the measurement.
Do you have any advise for me?
Thank you.
Br.
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