WPA series high power amplifiers have high power
with exceptional linearity based on HFF  technology.
The amplifiers offer IP3 of from 50 dBc to 70 dBc with higher efficiency than traditional Feed
Forward Amplifier (FFA). However, the cost of a WPA is a small fraction of a traditional FFA.
Moreover, the circuitry is much simpler than that of the FFA. The linearity is better than
that of any pre-distortion PA.