This 24 GHz Radar demonstrator is a result of the "FahrRad" project. The module sR-2400e and the Development Kit DK-sR-2400e have 2 transmit (Tx) and 4 receive (Rx) channels for targets range measurement and azimuth angle estimation. The angles are determined by time-of-arrival parameters from the Rx1...Rx4 receiver antennas. The two transmit antennas are designed for wide (70°) and narrow (30°) view. Digital Beam Forming (DBF) is feasible. The radar signal processor allows fast FMCW chirp sequences for range-velocity evaluation. The radar module has an Ethernet interface. The Developer Kit DK-sR-2400e comes with a Graphical User Interface (GUI) called SenTool. SenTool makes it easy to configure the sensor and to measure, visualize and analyze radar data in several different graphical plots.

Lear more about the FahrRad Project.

Farfield of wide and narrow antenna beam.<br>

Farfield Patterns of wide and narrow Antenna Beams

Operating Frequency:24.0 GHz - 24.25 GHz (ISM band), max. BW = 700 MHz
Number of Channels:2 Tx, 4 Rx
Data Interface:Ethernet with Power-over-Ethernet
Antenna Type:Integrated Patch Antennas
Tx1 Antenna Characteristics:70° Azimuth, 10° Elevation (Wide View)
Tx2 Antenna Characteristics:30° Azimuth, 10° Elevation (Narrow View)
Rx1…Rx4 Antenna Characteristics:70° Azimuth, 10° Elevation
Antenna Gain:14 dBi (Tx1), 18 dBi (Tx2), 14 dBi (Rx1…Rx4)
Antenna Polarization:linear
Min. Measurement Range:0.6 m (@ ISM band)
Max. Measurement Range:154 m (@ ISM band)
Range Resolution:0.6 m (@ ISM band)
Max/Min Velocity:T4=0µs: ±54 m/s, T4=1ms: ±3.2 m/s
Velocity Resolution:dV(T4=0µs) = 1.7 m/s, dV(T4=1ms) = 0.1 m/s
Target Detection, Max Targets:28
Frequency Chirp Sequence:64 Chirps for Range-Velocity Evaluation
Chips Configuration:T1= 2 µs (Init. Time), T2= 51.2 µs (Ramp Time),
T3= 5.22 µs (Ramp Reset), T4= 0 to 1 ms (Ramp Delay)
Typical Update Rate:typ. 30 Hz (depending on application)
Output Power Tx1 (EIRP):0 to 27 dBm, tunable (20 dBm @ ISM band)
Output Power Tx2 (EIRP):6 to 33 dBm, tunable (20 dBm @ ISM band)
Min. Operating Temperature:-40°C
Max. Operating Temperature:+60°C
Operation Voltage:48 V with PoE (36 V to 57 V, IEEE
Standby Power:2.2 W
Operating Power:5.5 W
Dimensions (L x W x H):125 mm x 80 mm x 50 mm (Housing)
125 mm x 100 mm x 50 mm (with Bushing)
Weight:220 g (with 25 cm cable)
Material:ABS (UL94-HB)
Connection Cable and Connector:CAT-6 with RJ45 Female Plug (Ethernet)
Protection Code for Housing:IP54

Demonstrator Data Sheet sR-2400e

More details about the sR-2400e can be found in the demonstrator data sheet.

Data Sheet
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