1.6 watt 1.9 GHz power amplifier MMIC in silicon

A monolithic integrated 1.6 W (32 dBm) power amplifier in silicon for 1.9 GHz wireless and mobile communications, is presented. The chip is implemented using 25 GHz f/sub t/, 0.8 /spl mu/m, three layer interconnect silicon bipolar production technology (SIEMENS B6HF). The MMIC is designed for battery operation of 3 V to 6 V at 1.9 GHz and delivers an output power in the range of 0.5 W (27 dBm) to 1.6 W (32 dBm). At 3.0 V power supply, the power added efficiency reaches 35%.