One board. A complete radar.
The subarray board is the modular unit of the whole REPLICAR architecture: two cascaded AWR2243, an FPGA stream combiner and an automotive serializer — everything the front end needs, on one PCB with a single cable leaving it.
Everything on board. One cable out.
Two AWR2243 stream CSI-2 into the on-board FPGA combiner, which merges them into a single 2-VC stream for the Valens VA70xx serializer. The STM32L5 configures both MMICs over SPI as TI mmWaveLink host and stays reachable out-of-band over I²C — so exactly one A-PHY link leaves the board.
λ/2 inside. Clean beams out.
Six transmitters and eight receivers span 48 virtual antennas on an internally λ/2-accurate grid — the precondition for artefact-free angle estimation.
Radar frames as video frames.
The board delivers raw 12-bit IQ as RAW12 (FourCC RG12 — not Bayer). Two driver modes frame the stream; the chirp configuration sets the rate.
One format. Two modes.
- FORMAT
- RAW12 · FourCC RG12 · 12-bit IQ
- MODE0
- 2048 × 384 · 1.13 MB/frame
- MODE1
- 2048 × 1536 · 4.5 MB/frame
- FRAME RATE
- 10–100 Hz
- SET BY
- framePeriodicity in the chirp config — not the driver
Reconfigure without rebooting.
Presets swap at runtime via browser UI or I²C: the STM32L5 pauses the front end, loads the new chirp configuration over mmWaveLink and resumes the stream.
One board is a radar. Eight are an aperture.
Board count is a parameter, not a redesign: a single subarray is a complete stand-alone sensor, N boards phase-lock into one coherent array.
A complete radar
- VIRTUAL ANTENNAS
- 48 · λ/2
- TX × RX
- 6 × 8
- CONTROL
- STM32L5 · SPI / I²C
- OUTPUT
- 1× A-PHY · 4.6 Gbit/s
- POWER
- dedicated or Power-over-A-PHY
Up to 8 subarrays — and beyond
- VIRTUAL ANTENNAS
- up to 3072 · cross-coherent
- TX × RX
- 48 × 64
- LO
- cascade master · 8/0 · 7/1 · 4/3/1
- OUTPUT
- 8× A-PHY → Jetson
Modular by design.
From a single subarray to the full 8-subarray system — architecture, firmware and software scale by configuration, not redesign. We serve any configuration on request.