CALTERAH | Forward-Looking Radar

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mmWave Radar SoCs

Automotive-Grade mmWave Radar SoCs

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- Andes NEW
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Industrial-Grade mmWave Radar SoCs

- Alps Platform
- Alps
- Rhine

Automotive Applications

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Imaging Radar

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Forward-Looking Radar

Enabling Adaptive Cruise Control (ACC), Forward Collision Warning (FCW), and other ADAS functions

Calterah's forward-looking radar solution, developed based on the Alps-Pro mmWave radar SoC, offers outstanding detection performances and meets the requirements of forward-looking radar for L2/L2+ ADAS systems, enabling functions such as Adaptive Cruise Control (ACC) and Forward Collision Warning (FCW). The Alps-Pro forward-looking radar solution offers long-range mode (LRR) and medium-range mode (MRR), featuring powerful capabilities in range detection, real-time velocity measurement, azimuth and elevation measurement, angular resolution, and target depiction, helping vehicles to “see” farther and more accurately, thus enhancing vehicle active safety.

Specifications of Calterah Forward-Looking Radar Solution Enabled by Alps-Pro CAL77S344-AE

Item/Mode	Long-Range Radar (LRR)	Medium-Range Radar (MRR)
Maximum Range	240 m @ 0° 240 m @ ±10° FOV 100 m @ ±45° FOV 80 m @ ±60° FOV	100 m @ 0° 100 m @ ±10° FOV 100 m @ ±45° FOV 80 m @ ±60° FOV
Range Resolution	0.5 m	0.2 m
Range Accuracy	±0.1 m	±0.04 m
Velocity Range	-85–85 m/s	-85–85 m/s
Velocity Resolution	0.15 m/s	0.12 m/s
Velocity Accuracy	±0.03 m/s	±0.03 m/s
Azimuth FOV	-60°–60°	-60°–60°
Azimuth Resolution	2.8°	2.8°
Azimuth Accuracy	+0.1° @ ±10° FOV ±0.2° @ ±45° FOV +0.5° @ ±60° FOV	+0.1° @ ±10° FOV ±0.2° @ ±45° FOV ±0.5° @ ±60° FOV
Elevation FOV	-10°–10°	-10°–10°
Elevation Accuracy	±0.5° @ ±10° FOV	±0.5° @ ±10° FOV
Target Maximum (Raw Data)	512	512
Refreshing Cycle	50 ms	50 ms

*Calterah Alps-Pro SoC family also offers the CAL77S344-AR chip device with (Radiator on Package) RoP^®. Working with waveguide antennas, CAL77S344-AR can enable automotive forward-looking radar to achieve a longer detection range, a wider Field of View (FOV), and enhanced angular resolution.

Performance Highlights

Longer Detection Range

Under the LRR mode, radar enabled by one Alps-Pro SoC can detect objects within the maximum range of up to 240 m with high range resolution (0.5 m) and accuracy (±0.1 m) with only around 2 W single-chip power consumption

More Accurate Real-Time Velocity Measurement

The Alps-Pro forward-looking radar solution supports accurate velocity measurement within the range of -85 m/s –85 m/s with high velocity resolution (0.12 m/s under the MRR mode and 0.15 m/s under the LRR mode) and velocity accuracy (±0.03 m/s).

Angular Measurement in Large FOV with High Accuracy

The Alps-Pro forward-looking radar solution achieves higher 2D angular measurement accuracy within a large FOV (azimuth: -60°–60°, elevation: -10°–10°). The azimuth accuracy reaches ±0.1° (@ ±10° FOV), and the elevation accuracy reaches ±0.5° (@ ±10° FOV).

More Stable Angular Resolution with Higher Accuracy

With a high azimuth resolution (2.8°), the Alps-Pro forward-looking radar solution also boasts more stable angle resolution performance.

More Accurate Depiction of Objects

The Alps-Pro forward-looking radar solution outputs dense point cloud data for depicting target vehicles with high accuracy.

Demo Videos

SoCs Applied

Alps

CAL77S244-AE

Alps 4T4R 77/79 GHz Radar SoC

Calterah cost-efficient automotive-grade mmWave radar SoC, ideal for ADAS applications such as corner radar and forward-looking radar

Alps-Pro

CAL77S344-AE

Alps-Pro 4T4R 77/79 GHz Radar SoC

Calterah high-performance automotive-grade mmWave radar SoC, ideal for L2/L2+ ADAS applications such as corner radar and forward-looking radar

Alps-Pro

CAL77S344-AR

Alps-Pro 4T4R 77/79 GHz Radar RoP^® SoC

Calterah high-performance automotive-grade mmWave radar SoC with Radiator on Package (RoP^®), supporting waveguide antennas, ideal for L2/L2+ ADAS applications such as corner radar and forward-looking radar

Andes

CAL77C644-AR

Andes 4T4R 77/79 GHz Radar RoP^® SoC

Calterah ultra-powerful automotive-grade mmWave radar SoC with Radiator on Package (RoP^®), supporting waveguide antennas, enabling high-performance forward-looking radar

Partners

Shenzhen Smartcomtech Technology Co., Ltd.

Shenzhen Smartcomtech is a leading provider of plastic metallization application solutions for core RF components of 5G, 6G, mmWave, and satellite communication. With plastic metallization technology as its core, Shenzhen Smartcomtech provides customers with processing services for 4D mmWave automotive radar antennas, including metal precision machining, plastic precision machining, PVD magnetron sputtering, electro/chemical plating, precision mold design and processing, precision injection molding, etc.

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Waveland Technology

Founded in 2023, Waveland Technology (Shanghai) specializes in 3D waveguide antennas for mmWave radar, which are applied to the ADAS and traffic fields. Waveland has collaborated with Calterah in developing a dual-layer antenna demo board based on Calterah’s Alps-Pro chip, which has enhanced the signal stability and detection accuracy of mmWave radar and has been applied to forward-looking radar for ADAS and 4D imaging radar.

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Gapwaves

Founded in 2011, Gapwaves boasts end-to-end capabilities in mmWave antenna design, validation, and production. Gapwave uses its proprietary gap waveguide technology to design antennas and delivers high-quality waveguide antennas that can be mass-produced after validation in a laboratory environment. Currently, Gapwaves offers two types of waveguide antenna products: one based on injection molding and the other based on an all-metal manufacturing process.

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Elektrobit

Elektrobit is a global vendor of embedded and connected software products and services for the automotive industry. Its software powers over 5 billion devices in more than 600 million vehicles and its flexible and innovative solutions serve car infrastructure software, connectivity and security, autonomous driving and related tools, as well as user experience. Elektrobit and Calterah have partnered to deliver a pre-integrated EB tresos Classic AUTOSAR solution. By providing developers with out-of-the-box support at the chip level, the solution enables OEMs to focus on algorithm innovations and reduces up to 70% of low-level development, thus accelerating the time-to-market for mass production of next-generation radar systems.

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iSOFT Infrastructure Software Co. Ltd.

iSOFT is the world’s first Chinese enterprise to have made its automotive operating systems open-source. It is dedicated to providing Chinese OEMs and suppliers of automotive parts with a full lifecycle toolchain covering the design, development, configuration, integration, and testing of automotive software, localized one-stop services, as well as ecological support for automotive chips. iSOFT and Calterah will collaborate to develop solutions integrating “China Chips” and “China Software”, jointly exploring emerging market opportunities. Through strategic integration and sharing of customer resources, the partnership will help foster mutual business development.

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