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Home >> Advanced Connectivity Solutions >> Applications >> Active Safety
Automotive Safety systems are very important to reduce the number of road accidents. New cars are equipped increasingly with robust crash avoidance technologies driven by the worldwide new car assessment programs. These so called Active safety technologies are enabled by innovative Advanced Driver Assistance Systems using several sensor technologies like radar to detect collision helping drivers arrive safe and relaxed to their destination.
Rogers is the world’s technology and market leader in innovative material solutions providing high performance PCB laminates for Automotive 24 GHz and 77 GHz Radar sensor applications in advanced driver assistance systems. Rogers RO4000® and RO3000® series materials enable the Radar sensor to detect upcoming collision to prevent road accidents.
Radar sensors make use of high frequency radar signals at RF / microwave, even millimeter-wave frequencies. This can be a challenge for automotive designers as a wide range of radar bands can be employed, from short-range to Long-range to high frequency 24-, 77-, and 79 GHz which require low Dk and low dissipation factors in the thin core laminates.
Rogers materials are built upon a legacy of excellence in quality and reliability and enable the radar sensor to achieve the highest performance in all weather conditions.
RO4000® high frequency circuit materials are successfully used in 24 GHz radar sensors for blind spot detection or rear cross traffic alert. The materials have proven their high-frequency capabilities and offer the circuit fabricator a process that is more aligned to standard PCB materials. In Blind spot detection two radar sensors continuously monitor the presence, direction and speed of vehicles in adjacent lanes, and alert the driver of any danger.
The latest active safety and comfort functions like forward collision warning, emergency brake assist, adaptive cruise control and
traffic jam pilot require radar sensors operating in a range from 76-81 GHz. These radar sensors need a high precision, reliability and excellent scalability from short to long range distance.
RO3000® High Frequency Laminates have an excellent Dk tolerance of ± 0.04 and at this high frequency concerns with insertion loss are paramount. These laminates also offer an extremely low dissipation factor, ensuring the dielectric loss component of insertion loss will be very low.
Vehicle to vehicle or vehicle to infrastructure communications can enable active safety systems help reducing fatalities and injuries on the roads. The car is communicating with other cars and infrastructure sending and receiving safety related information by dedicated short range communication at 5.9GHz (DSRC) or intelligent transportation system G5 (ITS-G5) and 3G/4G cellular network. The V2X enables the advanced driver assistance system to detect collusion at further distance and around the corner. V2X communications also have a great potential for traffic management to alerting drivers about the latest traffic and road conditions.
Reliable connectivity is an essential requirement for DSRC and ITS-G5, Rogers high frequency materialshelp antenna´s and modules to achieve high performance and reliable connections between cars and infrastructure even at high speed and under harsh vehicle environments.
ULTRALAM® 3850HT laminate circuit materials utilize highly temperature resistant liquid crystalline polymer (LCP) as the dielectric film. Developed specifically for single layer and multilayer substrate constructions, these adhesiveless laminates are well suited for high speed and high frequency applications.