The use of mmWave technology in advanced driver assistance systems (ADAS) has grown tremendously in recent years. There is also a shift in the industry toward the use of the 76–81-GHz frequency band due to emerging regulatory requirements, larger bandwidth availability, smaller sensor size and performance advantages.

Traditionally, radar implementations used discrete components, but in today’s market more integrated solutions are becoming available. A complementary metal-oxide semiconductor (CMOS) integrating radio-frequency (RF) and analog functionality, as well as digital control capability into a single chip reduces cost and form factor.