W. Bejaoui, F. Choubani, and A. Bouallegue (Tunisia)
Power Amplifier, AM/AM distorsions,AM/PM distorsions
In order to characterize the amplitude and phase
distortions of power amplifiers, several methods have
been developed for modeling non-linearities of the active
components and their effects on transceivers: Volterra
series, harmonic balance and behavioral description.
These models whose implementation is sometimes
difficult, are frequency independent and restricted
generally to slightly non-linear systems.
To overcome these disadvantages, we present in this
work a new behavioral model to describe transfer
characteristics (AM/AM and AM/PM) of BroadBand
Power Amplifiers (BBPAs).
The simple scheme presented here, exhibits the
flexibility required for accurateley modeling highly