Automotive mmWave radar sensors are advanced sensing technologies used in the automotive industry for applications like collision avoidance, adaptive cruise control, and autonomous driving. These sensors operate in the millimeter-wave frequency range (typically 24GHz, 77GHz, or 79GHz) to detect objects with high precision. Leading manufacturers include Texas Instruments (USA), NXP Semiconductors (Netherlands), and Infineon Technologies (Germany), which produce radar chips and modules for Tier 1 automotive suppliers. Key products include short-range radar (SRR) for parking assistance and long-range radar (LRR) for highway speed detection. These sensors are critical for ADAS (Advanced Driver Assistance Systems) and are widely adopted by global automakers.