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Boston-based Teradar unveiled its Summit terahertz sensor at Consumer Electronics Show 2026 this week, two months after emerging from stealth with $150 million in funding. The company is marketing Summit as the first long-range, high-resolution sensor of its kind, designed for optimal performance in all weather conditions, addressing a critical need unmet by traditional radar and lidar systems.
Teradar's technology utilizes the terahertz band of the electromagnetic spectrum, situated between microwaves and infrared, which is relatively underutilized. The Summit sensor is a solid-state device, eliminating moving parts and aiming to combine the strengths of both lidar and radar while minimizing their respective weaknesses. This approach could prove appealing to automakers seeking alternatives to the cost of lidar or the limitations of radar.
The company anticipates that if contracts with automakers are secured, shipments of the Summit sensor will commence in 2028. Teradar believes the Summit sensor will enable automakers to incorporate partial or full autonomy features into their vehicles.
Teradar's sensor operates by emitting terahertz waves and analyzing their reflections to create detailed images of the surrounding environment. Unlike lidar, which can be affected by fog and rain, and radar, which often lacks the resolution needed for detailed object recognition, Teradar's sensor is designed to perform reliably in adverse weather conditions while providing high-resolution data.
The potential impact on the automotive industry could be significant. Widespread adoption of Teradar's technology could accelerate the development and deployment of autonomous vehicles, making them safer and more reliable in a wider range of driving conditions.
Teradar reports it is currently working with five leading U.S. automakers to validate its technology. The company's focus remains on securing contracts and preparing for the anticipated 2028 launch of the Summit sensor.
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