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3rd Order Non-Linearity RF question

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steppermotor

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I read that the second-order non-linearity could affect the DC offset, but does the third order non-linearity also affect the DC offset?

Also was wondering are these due to 3rd order nonlinearity:
- P1db due to signal itself
- p1db due to strong blocker (I'm not sure I understand the concept of the blocker perfectly I've read up on it and I know blockers cause the gain compression)
 

steppermotor said:
I read that the second-order non-linearity could affect the DC offset, but does the third order non-linearity also affect the DC offset?
Click to expand...

No, because if you perform Fourier transformation, you will see that just the second harmonic has a dc-component!

What do you mean with blocker?
 

johnjoe said:
No, because if you perform Fourier transformation, you will see that just the second harmonic has a dc-component!

What do you mean with blocker?
Click to expand...

I would call a blocker a spurious signal that shows up at the input.
 

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