Most satellite digital radio (SDR) systems use orthogonal frequency-division multiplexing (OFDM) transmission, which means that variable envelope signals are distorted by the RF power amplifier (PA). It is custo...
A built-in linearizer was applied to improve the linearity in a 5.2-GHz power amplifier microwave monolithic integrated circuit(MMIC),which was undertaken with 0.15-μm AlGaAs/InGaAs D-mode PHEMT technology. The pow...