Radars
Continental ARS 408-21
Continental ARS 408-21 is a compact 77 GHz long-range radar sensor designed for vehicle collision avoidance, object detection, distance and velocity measurement, and industrial area monitoring.
Specifications
Technical Specifications
Product Features
| Feature | Value |
|---|---|
| Radar Frequency | 76–77 GHz |
| Maximum Standard Distance Range | 250 m |
| Near-Range Coverage |
|
| Near-Range Coverage at Wider Angles | 0.20–20 m at ±60° |
| Distance Resolution | Up to 1.79 m far range; 0.39 m near range |
| Distance Accuracy | ±0.40 m far range; ±0.10 m near range |
| Azimuth Field of View | ±9° far range; ±60° near range |
| Elevation Field of View | 14° far range; 20° near range |
| Velocity Measurement Range | -400 to +200 km/h |
| Velocity Resolution | 0.37 km/h far range; 0.43 km/h near range |
| Velocity Accuracy | ±0.1 km/h |
| Measurement Cycle Time | Approximately 72 ms |
| Antenna Configuration |
|
| Measurement Technology | FMCW with digital beamforming |
| Power Supply | 8–32 V DC |
| Typical Power Consumption | 6.6 W |
| Maximum Peak Power Consumption | 12 W |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -40°C to +90°C |
| Interface | 1 × high-speed CAN, 500 kbit/s |
| Protection Rating | IP6K9K and IP6K7 |
| Dimensions | 138 × 91 × 31 mm |
| Weight | Approximately 320 g |
| Self-Monitoring | Fail-safe sensor monitoring |
| Configurable Settings | Up to 8 IDs and 8 collision avoidance regions |
| Optional Extended Range | Up to 1200 m with a special software version for high-RCS targets and a clear field of view |
Overview
Continental ARS 408-21 77 GHz Long-Range Radar for Object Detection and Collision Avoidance
The Continental ARS 408-21 is a compact 77 GHz long-range radar sensor designed for reliable distance and relative velocity measurement, object detection, and collision avoidance. Based on Frequency Modulated Continuous Wave (FMCW) technology, the sensor measures the distance and velocity of natural, non-reflector targets in a single measurement cycle. It also provides angular information to support object detection and environmental awareness in industrial and vehicle-related applications. The ARS 408-21 supports long-range measurements up to 250 m, with additional near-range coverage across wider azimuth angles. Its real-time scanning capability and digital beamforming architecture enable the detection and classification of objects in challenging environments. Typical applications include collision avoidance for vehicles and autonomous systems, long-range headway control, hazardous-area monitoring, object classification, and detection in areas with limited visibility. The sensor features a rugged housing, self-monitoring functionality, and a high-speed CAN interface operating at 500 kbit/s. With configurable identification settings and collision avoidance regions, the ARS 408-21 can be adapted to specific application requirements. Its compact dimensions, broad operating temperature range, and resistance to dust, water exposure, and high-pressure cleaning make it suitable for demanding industrial environments and mobile machinery applications.