An E-mode GaAs FET power amplifier MMIC for GSM phones

An enhancement-mode three stage GaAs FET power MMIC has been developed for single supply portable applications. The MMIC operates from a 4.8 V power supply and provides over 35 dBm output power from 890-915 MHz with more than 35 dB gain and 47% power added efficiency. Power control range is greater than 70 dB. Leakage current is 2 uA.