50nm GaAs mHEMTs and MMICs for Ultra-Low Power Distributed Sensor Network Applications

We report well-scaled 50 nm GaAs metamorphic HEMTs (mHEMTs) with DC power consumption in the range 1-150 muW/mu demonstrating f
_T
of 30-400 GHz. These metrics enable the realisation of ultra-low power (<500 muW) radio transceivers for autonomous distributed sensor network applications