TI's Low Power mmWave Radar Sensors have been built internally into subsystems like FECSS and APPSS which, by design, support various calibrations methods and topologies. Calibration routines makes sure that the performance of the radar front end is maintained across operational temperature range and process variations across devices. This application note describes the various types of calibrations supported in low power mmWave radar sensors and also details about the software configurability of these calibrations.