Demand for radar systems boosts Infineon’s chip production: Page 2 of 2

July 28, 2015 //By Christoph Hammerschmidt
Demand for radar systems boosts Infineon’s chip production
Radar systems are experience rapidly growing acceptance among car buyers. While passenger cars with a radar sensor can be bought since the nineties, production figures as well as take rates reached significant numbers only by 2013. But since radar-based driver assistance systems are available at affordable prices, the numbers are skyrocketing. Infineon now has produced the ten millionth radar chip.
our success,” says Hanebeck.

Even in poor visibility situations, radar chips in the 77-GHz range make it possible for vehicles to ”recognize” other road users at a distance of up to 250 meters (approx. 275 yards). Radar technology also works under fog and rainfall - in a certain contrast to competing lidar technology and even more so to camera-based image processing. This allows a car to indicate a hazardous traffic situation in time and brake automatically.

In addition to 77-GHz radar chips for active safety systems, Infineon also offers radar chips in the 24-GHz frequency range for distances up to 100 meters (approx. 110 yards). 24-GHz radar chips are most often used to monitor the blind spot. With them, the radar system alerts drivers to vehicles behind them when passing or changing lanes. When parking, the radar detects cross-traffic in the rear and prevents collisions.

A vehicle driver assistance radar system sends out radio-frequency electromagnetic waves, which are reflected back by vehicles or other objects ahead. Radar chips send and receive these high-frequency signals and pass them on to the radar electronic control unit (ECU). The radar ECU then determines the distance of the car to other vehicles and their speed in order to warn the driver in good time and to initiate the braking maneuver in case of emergency.

Since 2009, Infineon manufactures its radar chips in Regensburg, the company’s innovation center for high frequency technology in Germany. Here the radar chips are integrated in special chip packaging and tested. The use of the silicon germanium manufacturing technology developed by Infineon helps make radar sensor systems that are more compact and cost-effective.

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