Rhyton ABS-PBTL77 Absorbing Plastic——“Electromagnetic Scavenger“ for Automotive Milimeter Wave Radar

Radar sensors are core components in advanced driver assistance systems (ADAS) that improve vehicle safety and convenience. By the intelligent driving technology is continuously developing, the application of automotive millimeter wave radar is becoming more and more widespread.

Compared with ultrasonic radar and lidar, automotive millimeter wave radar has the advantages of low cost, strong anti-interference ability, long detection range and high accuracy. Moreover, it has strong ability to penetrate fog, smoke and dust, and has the characteristics of all-weather and all-time working (except heavy rainy days).

Commonly used automotive millimeter wave radar operating frequencies are around 24GHz and 77GHz. 24GHz is used for BSD, LCA, rear crossing vehicle alarm, door opening assist, rear collision warning, and forward vehicle alarm, while 77GHz is mainly used in forward anti-collision, automatic cruise, and braking AEB systems.

By more and more wide applications of automotive millimeter-wave radar, the demand for absorbing materials suitable for high-frequency radar is also increasing. Absorbing plastic, as an innovative material, has been widely used in automotive millimeter-wave radar. Its unique electromagnetic properties and excellent mechanical properties make it play an important role in automotive millimeter-wave radar, providing strong support for the development of automotive millimeter-wave radar.

Rhyton ABS-PBTL77 is an absorbing PBT particle specially developed for automotive millimeter-wave radar. It uses PBT thermoplastic as the carrier and has good weather resistance and machinability. After being modified with the wave-absorbing particles, it has good electromagnetic wave absorbing characteristics at 77GHz. When co-injected with PBT injection molding shell, it can effectively reduce the interference of millimeter wave radar radome clutter on patch antennas and chips, improving radar recognition sensitivity and effective detection range.

Product Characteristics:

High absorbing rate: It can efficiently absorb electromagnetic waves, reducing the impact of electromagnetic interference on radar.

Broadband absorbing: It can cover a wide frequency band, adapt to electromagnetic waves of different frequencies, and improve the anti-interference ability of the radar.

Good corrosion resistance and weather resistance: It has good corrosion resistance and weather resistance, and can maintain stable performance under harsh environmental conditions.

Design Flexibility: Able to provide solutions in the form of injection molded products derived from off-the-shelf elastomer products with the same EM properties.

Applications in automotive millimeter wave radar

Absorb radar clutter and antenna side lobe signals:

By using absorbing plastic, radar clutter and antenna side lobe signals can be absorbed, thereby reducing interference to the radar and improving the accuracy and reliability of the radar.

Enhance the stability of radar signals:

Absorbing plastic can reduce the reflection and scattering of electromagnetic waves, thereby reducing signal attenuation and distortion and enhancing the stability of radar signals.

Improve anti-interference ability of radars:

As absorbing plastic has excellent electromagnetic shielding properties, it can effectively suppress electromagnetic interference, improving the anti-interference ability of radar.

Protecting radars:

Absorbing plastic also has excellent mechanical properties and weather resistance, which can protect radars from effects of external environment, extending the life of equipment.