Arbe Robotics has released its final RF chipset for production. The new transmit (Tx) and receive (Rx) RFICs increase radar sensitivity and range, reduces power consumption and combine design flexibility with ultra-high-resolution for excellent image quality. To achieve high resolution, the radar uses 48 Tx and 48 Rx antennas to create a 2304 virtual channel array, natively providing high dynamic range and avoiding angular ambiguities and phantom objects. This resolution enables the system to track moving objects, map the environment and detect stationary obstacles, generating free-space mapping for path planning while providing accurate localization. This 48 x 48 architecture has 12x the MIMO channels as the current most advanced 12 x 16 radars, which have lower resolution and higher sidelobes.
Arbe’s Tx RFIC provides 12.5 dBm output power from a single channel, high enough to detect a car at > 300 m using a single beam. It can also transmit multiple channels simultaneously, which can extend vehicle detection to 800 m, 350 m for pedestrians and two wheelers. The radar’s waveform can be tailored to optimize performance for a specific application, like trucks and other commercial vehicles. The Tx RFIC’s power consumption is 50 percent that of the prior generation.
The Rx RFIC has 11 dB noise figure, which Arbe says is the best in the industry, and 50 percent lower power consumption compared to the previous generation. Rx and Tx performance uses auto calibration to be stable across the automotive temperature range of −40°C to +125°C.
Arbe’s proprietary chipset uses the latest RF processing technology to achieve this level of RF performance and the lowest cost per channel. The chipset meets ASIL-B, AEC-Q100 and Automotive Grade 2 and is Grade 1 ready.
Tel Aviv-Yafo, Israel