Overview
Miniaturization, low power consumption, and low cost are the main development goals for radar solution providers. 24 GHz radar has made significant progress in achieving small size, low cost, and ease of use, enabling new applications in object detection, tracking, safety control, and collision warning systems. Based on the Doppler effect discovered by physicists, microwave detection and radar techniques have evolved from early military uses into widespread civilian applications. K-band 24 GHz sensors are now a mainstream civilian product, enabling non-contact smart sensing for automotive systems, drones, and consumer electronics. These radar sensors can provide real-time information about object presence, motion, angular position, velocity, and distance ranging from a few centimeters to hundreds of meters.
Trends and Traffic Applications
Historically, millimeter-wave radar sensors relied on large, complex, and costly discrete components, which limited wider adoption. The evolution of 24 GHz radar has addressed many of these constraints. In intelligent transportation, 24 GHz radar sensors commonly provide three functions: non-contact measurement of target speed, range, and azimuth. Compared with traditional horn antennas, 24 GHz sensors offer narrower beam angles, higher sensitivity, and smaller form factors.
Range measurement is a common application in automotive collision avoidance. Compared with image-based and ultrasonic methods, radar offers better interference immunity and is less affected by adverse environmental conditions. As 24 GHz radar technology has matured, become more affordable, and been miniaturized, it has become a mainstream sensing method for cruise control, blind spot detection, and collision avoidance systems.
Drone and Industrial Uses
With the rise of unmanned aerial vehicles in the civilian market, the successful use of 24 GHz radar in transportation has expanded into the drone sector.
Industrial radar applications still offer significant opportunities. In industrial control, 24 GHz radar sensors are used in automatic door sensors, energy-saving escalator sensors, tunnel train detection, and speed measurement for printers and conveyors. High-end uses such as crane collision avoidance and radar level gauges can also adopt 24 GHz sensors. Their directional beam and high detection sensitivity make them suitable for these industrial scenarios.
Consumer Applications and Security
The consumer radar market is still emerging and has large potential. Occupancy sensing with 24 GHz radar can trigger lighting or control appliances without emitting sound or relying on voice commands. Appliance manufacturers are integrating these sensors for features such as presence-based HVAC control to save energy.
High-performance 24 GHz radar reduces cost barriers, and with full solutions from system providers, new applications are emerging. Examples in sports events and security show the technology's applicability: its compact size and ease of integration have led to use in sports equipment, and its resistance to environmental interference and concealable form factor make it useful for security detection at airports, correctional facilities, and other critical sites, with detection ranges from a few meters to over a kilometer.
Drone Radar Test Shielding Box Requirements
- Isolate 24 GHz signal interference.
- Attenuation: greater than 40 dB.
- The shielding box uses a drawer-style structure.
- Control components, pneumatics, circuitry, and cable exits are arranged at the rear; the bottom serves as the mounting surface.
- Designed for use with automation equipment and for communication with automation systems and MES.
