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SiGe Circuits for Future LEO Constellations

This work presents an overview of the current state-of-the-art Power Amplifiers and Low-Noise amplifiers in the 40–75 GHz frequency band (i.e., V -band). These RF blocks are critical for the development of future LEO constellations that have recently begun to target these frequencies. Special attention is brought to GaAs, GaN, SiGe, FDSOI and classical CMOS technologies. The aim of the paper is to give a clear overview of the attainable performances with each technology as well as their relative trade-offs.