Improve linearity by increasing P1dB by increasing Vds

Asked Dec 28 '20 at 17:46

Active Dec 28 '20 at 17:46

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So I am using MRF6V2150N as power stage and I was using VDS 28V and increased it to 34V. I see that the linearity increased since the P1dB shifted upwards. And this also improved (lowered) the IMD3 cause the ACPR also got better. I want to know if this is true, normal and make sense. And if so, is there a reference that I can find to back it all up for a report?

THANKS!

asked Dec 28 '20 at 17:46

уве вонг

Both it is true and common in general, However if drain load is a transformer or coil, 34V it is too much – GR Tech Dec 28 '20 at 18:03
its gonna go to a next stage with 50 Ohm. – уве вонг Dec 28 '20 at 18:08

Improve linearity by increasing P1dB by increasing Vds

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