Smooth memory effects are not usually harmful to the linearity of the PA itself. A
phase rotation of 10º to 20º or an amplitude change of less than 0.5 dB, as a function
of modulation frequency, has no dramatic effect on the linearity of the device,
conjugate
matched
If operation is at the optimal Power Added Efficiency point, optimal-power tuning
produces about 1 dB to 3 dB of higher power. Gain is reduced (for small Pin) typically
by a slightly smaller amount.