Introduction
The U20 4D mmWave Radar is a compact, lightweight sensing module specifically developed for UAV and drone applications. Operating in the 60–64 GHz band, the U20 provides accurate real-time 4D environmental perception, outputting X, Y, Z coordinates and relative velocity for reliable spatial awareness.
With a measuring range of 0.2 to 40 meters (adjustable), the U20 is ideal for functions such as altitude sensing, obstacle avoidance, indoor positioning assistance, short-range navigation, and landing support. Its small size, low power consumption, and high precision make it especially suitable for drones, robots, and other embedded platforms where payload, integration space, and sensing stability are critical.
Key Features
1. UAV-Optimized Design
Ultra-Compact and Lightweight:
With a size of only 35 × 35 × 5.5 mm and a weight of 5 ± 2 g (without housing), the U20 is ideal for lightweight UAV platforms and embedded applications.
Flexible Integration:
Supports compact installation in drones, robots, and other space-constrained systems.
Low Power Consumption:
Consumes only 1 W average power with a 3 W peak, making it suitable for battery-powered devices.
2. Performance Parameters
Frequency Range:
60 – 64 GHz
Measuring Range:
0.2 – 40 m (adjustable)
4D Output:
Real-time X, Y, Z coordinates plus relative velocity
Distance Resolution:
0.02 m
Distance Accuracy:
0.01 m
Field of View:
Azimuth ±40°, Elevation ±12°
Velocity Detection Range:
±20 m/s (adjustable)
3. Advanced Sensing Capabilities
Altitude Measurement:
Provides accurate height data for low-altitude flight control, hovering, and terrain-aware movement.
Obstacle Avoidance:
Detects obstacles in front of the platform to support safer path planning and navigation.
Short-Range Spatial Awareness:
Enables reliable perception in near-range environments for drones, robots, and automation systems.
Landing Assistance:
Supports stable altitude and position sensing during approach and landing.
Motion Detection:
Outputs relative velocity information for real-time environmental awareness and target motion sensing.
4. Environmental Adaptability
Stable Operation in Harsh Conditions:
Designed to work reliably across a wide temperature range from -40°C to +85°C.
Humidity Resistance:
Operates in 5% to 90% RH, non-condensing environments.
Storage Reliability:
Suitable for storage in environments up to <90% RH, with no corrosive gases permitted.
Robust Sensing for Complex Environments:
Maintains dependable performance in a wide range of operational conditions for outdoor and industrial deployment.
5. Power and Communication
Power Supply:
5V / 1A
Interfaces:
TTL (standard)
RS-422 (optional)
Output Data:
X, Y, Z, V
Application Scenarios
🚁 Drone Obstacle Avoidance:
Detect nearby obstacles and improve flight safety in dynamic environments
📏 Altitude Sensing:
Provide precise height data for hovering, landing, and terrain following
🤖 Robotics Integration:
Support short-range perception and motion awareness for mobile robots and embedded systems
🏭 Embedded and Industrial Sensing:
Enable compact radar perception for automation equipment and intelligent devices
Why Choose U20 4D mmWave Radar?
✅ Compact 35 × 35 mm design for lightweight UAV and embedded integration
✅ High-precision sensing with 0.01 m accuracy and 0.02 m resolution
✅ True 4D perception with real-time position and velocity output
✅ Low power consumption for battery-powered platforms
✅ Ideal for altitude sensing, obstacle avoidance, and short-range spatial awareness
