RF WALKWAY ABSORBER
PU Foam Walkway Absorber

High Performance RF and Microwave Walkway Absorber – Expanded Polypropylene (EPP) and Foam Polyurethane (PU)

DMC RF walkway absorber structure is topped with a higher density Polypropylene laminate. PP-WW series offer excellent load bearing and wear characteristics. The material’s ability to withstand higher loads than most walkway materials is due to the construction technique. The standard Walkway absorbers are available in 600mmx600mm or 600mmx1200mm footprint dimensions. Custom sizes and shapes can be provided. The walkway absorber is taller than standard absorber. We generally recommend using walkways one size smaller than surrounding absorbers. Typical reflectivity data can be provided upon request.

  • Frequency range 500MHz to 40GHz
  • Typical reflectivity as high as -45dB
  • Max load capacity 302 kg/m2
  • Power handling capacity 4.8kW/m2, 1353 V/m CW Radiated field strength
  • Fire Retardant per NRL-8093 1,2,3, UL 94:2013, HBF and DIN 4102 and Class B2
  • Continuous working temperature up-to 120°C
  • Clean Room suitable per ISO 14644 Class5
  • Water Resistant per GB/T 4208-2017
  • RoHS and REACH Compliant
  • Zero Carbon dust

Part number reference:
DMC-PP-WW-350

Datasheet
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TYPICAL REFLECTIVITY AT NORMAL INCIDENCE OVER FREQUENCY RANGE IN dB

Model Number 500 MHz 1 GHz 2 GHz 4 GHz 8 GHz 12 GHz 18 GHZ 40 GHz
DMC-PP-WW-350 20 35 45 40 35 35 35 35

DMC-PU-WW-350

PU Foam Walkway Absorber

DMC-PP-WW-350

Walkway Absorber 1

Frequently Asked Questions

What is an RF Microwave Walkway Absorber?

It is a specially designed RF absorber that allows technicians to walk inside anechoic chambers while maintaining electromagnetic absorption performance.

What frequency range does the walkway absorber support?

The absorber typically supports a frequency range from 500 MHz to 40 GHz, covering most RF and microwave testing applications.

What is the typical reflectivity of the absorber?

The absorber can achieve reflectivity levels up to approximately −45 dB, depending on the frequency and design.

 

What is the load capacity of the walkway absorber?

It can support loads of up to approximately 302 kg/m², making it safe for technicians and testing equipment.

What is the power handling capability?

The absorber can handle around 4.8 kW/m² RF power with CW field strength around 1353 V/m.

 

What materials are used in the walkway absorber?

It is typically made from polyurethane foam or expanded polypropylene with a high-density protective laminate surface.

Is the absorber fire-retardant?

Yes. It meets fire safety standards such as NRL-8093, UL-94, and DIN 4102 Class B2.

 

What is the maximum operating temperature?

The absorber can operate continuously at temperatures up to 120 °C in RF testing environments.

Is the absorber suitable for cleanroom environments?

Yes. It is ISO 14644 Class 5 cleanroom compatible and produces zero carbon dust, making it suitable for sensitive RF labs.

 

What advantages does a walkway absorber provide?

It allows safe movement inside anechoic chambers, protects standard absorbers from damage, and maintains accurate RF measurement conditions.

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