Friday, July 19, 2024

Environmentally Sustainable Radio Wave Absorbers

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The radio wave absorbers, made from over 25% sugarcane biomass, reduce CO₂ emissions by 13%, matching traditional performance.


TDK Corporation has launched the IS-BP series of radio wave absorbers, integrating over 25 wt% of biomass material derived from sugarcane. This innovation underscores the company’s commitment to environmental sustainability by enabling significant CO₂ reduction. The series, which began mass production in April 2024, is used extensively in microwave anechoic chambers for evaluating antennas, wireless communication equipment, and millimetre-wave radar for autonomous driving and advanced driver-assistance systems (AD and ADAS).

In these chambers, the ceiling, walls, and floor are lined with radio wave absorbers like those from the IS-BP series. These absorbers are composed of foamed polyethene with dispersed carbon and absorb radio waves through the ohmic loss of carbon. Available in pyramidal shapes and varying sizes of 12 cm and 30 cm, they cater to different frequency ranges.

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Performance-wise, the IS-BP series matches the absorption efficacy of traditional products. Rigorous testing has confirmed its strength, durability, and non-flammable nature, maintaining the standards of conventional absorbers. More significantly, this series shifts from petroleum-based to biomass polyethene, aligning with TDK’s mission to contribute to a sustainable society. Collaborating closely with customers across automotive, ICT, and industrial sectors, TDK has developed this product in response to supply chain demands for adherence to climate change initiatives. This breakthrough is certified by the JBPA and achieves a 13% reduction in CO₂ emissions compared to its predecessors.

Some of the key features of the IS-BP series include:

  • Uses biomass material.
  • Approved by the JBPA.
  • Contains more than 25 wt% biomass material.
  • Reduces CO₂ emissions by 13% relative to traditional products.
  • Maintains equivalent performance and flame retardance as conventional products.

The IS-BP series matches traditional radio wave absorbers’ absorption performance, durability, and non-flammability. The product, certified by the JBPA, achieves a 13% reduction in CO₂ emissions compared to conventional materials.

For more information, click here.

Nidhi Agarwal
Nidhi Agarwal
Nidhi Agarwal is a journalist at EFY. She is an Electronics and Communication Engineer with over five years of academic experience. Her expertise lies in working with development boards and IoT cloud. She enjoys writing as it enables her to share her knowledge and insights related to electronics, with like-minded techies.


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