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Hybrid CMOS System-on-Chip/InP MMIC systems for deep-space planetary exploration at mm-Wave and THz

This paper discusses the applicability of hybrid CMOS/InP-MMIC mm-Wave systems to remote sensing instrumentation for space exploration in Earth and Planetary science. We review the need for lower power and lighter weight instruments to accommodate the limited payload resources of exploration spacecraft, and then demonstrate how hybrid systems can address these challenges. An example hybrid 65nm CMOS-InP radiometer operating at 100 GHz is discoursed in detail including circuit & system design, interfacing and packaging techniques. Measurements are presented showing that the hybrid approach does not compromise instrument sensitivity.