InP HBT Technologies for sub-THz Amplifiers

InP HBTs are the leading technology for power amplification in the 100-300 GHz frequency band. InP power amplifiers (PAs) are currently deployed in high-frequency test and measurement equipment (VNA extenders, frequency sources) to boost output power and improve dynamic range. PAs have been demonstrated with record levels of power added efficiency across G-band (140-220 GHz) a critical attribute for future large-element phased arrays. This talk will review the performance attributes of state-of-the-art InP HBT IC technologies and discuss recent developments to improve back-end-of-line and integration technologies for future phased array systems.