77GHz CMOS Multi-Ranging Radar on a Chip (RoC)

77GHz CMOS radar system development project have been progressing in ETRI from June 2010. In this work, a new radar architecture so called CMOS centric topology is proposed and transceiver blocks are implemented by 65nm CMOS technology. CMOS centric architecture employing eight channel I/Q modulated receivers with fully differential signal path and minimizing the millimetre-wave circuitry for signal handling difficulties, so all the beam-forming work is done at signal processing block, resulting in easy way to system on a CMOS chip or package. Furthermore, patch type array antenna also implemented in LTCC (Low Temperature Co-fired Ceramic) substrate and discuss about the performances of the radar on a package for small size, low cost and mass productive practical radar.