Rubber Sheet Pyramidal RF Foam Absorber 300mm

Pyramidal RF Anechoic Chamber material 30cm

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

DMC-PU-PY-HY-500

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.

What Our Clients Say

High-Power Absorber for Demanding RF Testing

September 17, 2026

We’re very pleased with this absorber for demanding RF testing applications. The 1.5 kW/m² power handling capability provides useful flexibility when working with higher-power test signals. The overall construction feels robust and professionally designed, making it a practical addition to our testing environment.

Victoria Lawson

Versatile EMC Absorber for Flexible Chamber Design

September 17, 2026

We’re very pleased with the versatility of this EMC absorber. Its design supports both normal and off-angle incidence, giving us more flexibility when planning and configuring chamber setups. The practical design fits well with professional EMC testing requirements and makes it a useful addition to our testing environment.

Andrew Coleman

Hybrid RF Absorber for Broadband EMC Testing Performance

September 10, 2026

Its hybrid design works well with ferrite tiles, creating a broadband absorption solution for modern EMC testing facilities.

Trevor Collins

Carbon-Impregnated PU Absorber for Durable RF Chamber Performance

September 10, 2026

The carbon-impregnated polyurethane construction gives this absorber a professional combination of performance, durability, and practical chamber use.

Katherine Ellis

Reliable Broadband RF Absorber for Controlled Anechoic Chamber Testing

September 9, 2026

A solid absorber option for anechoic chambers, especially when wide frequency coverage and dependable RF absorption are important.

Ava Richardson

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