Pyramidal RF Foam Absorber 300mm
Rubber Sheet Pyramidal RF Foam Absorber 300mm
Pyramidal RF Anechoic Chamber material 30cm
Pyramidal EMC Foam absorber 30cm
Rubbersheet Microwave Absorber 300mm

Pyramidal Hybrid EMC Absorber

DMC offers premium quality high power RF Pyramidal foam EMC absorbers made of carbon impregnated low density Polyurethane foam and comes in various size and color. Our PY-HY series absorbers provide excellent performance in normal incidence and off angle incidence in Anechoic chamber with excellent impedance matching with Ferrite tiles and support wide frequency bands of operation up to 40 GHz.

  • Frequency range 30MHz to 40GHz
  • Typical reflectivity as high as -35dB
  • Power handling capacity 1.5kW/m2, 540 V/m CW Radiated field strength
  • Fire Retardant per NRL-8093 1,2,3, UL 94 and DIN 4102-B2
  • Continuous working temperature up-to 90°C
  • RoHS Compliant
  • Zero Carbon dust

Part number reference:
DMC-PU-PY-HY-200, DMC-PU-PY-HY-300, DMC-PU-PY-HY-500, DMC-PU-PY-HY-700, DMC-PU-PY-HY-1000

Datasheet
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TYPICAL REFLECTIVITY AT NORMAL INCIDENCE OVER FREQUENCY RANGE IN dB

Model Number 30 MHz 80 MHz 300 MHz 500 MHz 1 GHz 3 GHz 6 GHz 10 GHz 18 GHz 40 GHz
DMC-PU-PY-HY-200 11 21 15 17 11 10 11 13 15 15
DMC-PU-PY-HY-300 11 21 16 17 11 13 15 20 20 20
DMC-PU-PY-HY-500 12 21 17 19 17 17 20 25 25 25
DMC-PU-PY-HY-700 14 23 20 20 18 20 25 25 30 30
DMC-PU-PY-HY-1000 15 25 25 25 23 22 28 28 35 35

DMC-PU-PY-HY-300

Pyramidal RF Foam Absorber 300mm

DMC-PU-PY-HY-500

Pyramidal RF Foam Absorber 500mm

DMC-PU-PY-HY-700

Pyramidal RF Microwave Anechoic Absorber 700mm

Frequently Asked Questions

What is a pyramidal hybrid EMC absorber?

A pyramidal hybrid EMC absorber is a combination of ferrite tiles and pyramidal foam designed to absorb electromagnetic waves across a wide frequency range in EMC test chambers.

What frequency range does the absorber support?

Pyramidal hybrid absorbers typically operate from around 30 MHz up to 40 GHz, making them suitable for broadband EMC and RF testing applications.

Where are pyramidal hybrid EMC absorbers used?

They are commonly used in anechoic chambers, EMC compliance test labs, antenna measurement facilities, and RF shielded rooms.

What reflectivity performance can be expected?

Typical reflectivity can reach around −35 dB or better, helping minimize electromagnetic reflections inside the test environment.

How do hybrid absorbers differ from standard foam absorbers?

Hybrid absorbers combine ferrite tiles for low frequencies and foam pyramids for high frequencies, providing broadband absorption performance.

What materials are used in pyramidal hybrid absorbers?

They are typically made from carbon-impregnated polyurethane or polypropylene foam combined with ferrite tiles for improved electromagnetic absorption.

Are these absorbers suitable for high-power RF testing?

Yes. Many hybrid absorbers support high power handling capabilities and can withstand strong electromagnetic fields during testing.

How are pyramidal hybrid absorbers installed?

Typically, ferrite tiles are mounted on the chamber walls first, and the pyramidal foam absorbers are installed on top to achieve wideband absorption.

Are pyramidal hybrid absorbers fire-retardant?

Most EMC absorbers are designed to meet fire safety standards such as UL94 and NRL-8093 for safe use in RF chambers.

How do they improve EMC testing accuracy?

By absorbing electromagnetic reflections, they create a controlled RF environment, allowing accurate measurements of antennas and electronic devices.

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