Flexible Foam Sheet Radar Absorber 100mm

EMC Chamber Flexible Foam Flat Absorber Sheet

RF Flat Sheet Foam Absorber-PU

DMC Polyurethane RF Flat Sheet Foam absorber is light in weight and has good performance, which can be used as corner block, to fill areas near antenna. PU-FLT series can also be used to reduce Side lobes, improves front to back ratio, absorbs clutter, eliminates interference and provides camouflage appearance and concealment of military facility.

RF Flat Foam Absorber Features:

Frequency range 80MHz to 100GHz
Typical reflectivity as high as -50dB
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-FLT-5, DMC-PU-FLT-10, DMC-PU-FLT-20, DMC-PU-FLT-50

Datasheet

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TYPICAL REFLECTIVITY AT NORMAL INCIDENCE OVER FREQUENCY RANGE IN dB

Model Number	Thickness	1 GHz	3 GHz	6 GHz	10 GHz	18 GHz	40 GHz
DMC-PU-FLT-5	5 mm				5	10	15
DMC-PU-FLT-10	10 mm			10	15	15	18
DMC-PU-FLT-20	20 mm		10	15	17	17	20
DMC-PU-FLT-50	50 mm	10	18	18	19	19	22

DMC-PU-FLT-20

DMC-PU-FLT-50

Frequently Asked Questions

What is an RF Flat Sheet Absorber PU?

It is a polyurethane foam RF absorbing material designed to reduce electromagnetic reflections and interference in RF testing environments such as anechoic chambers and shielded rooms.

What frequency range does this absorber support?

The absorber supports a wide frequency range from 80 MHz to 100 GHz, making it suitable for RF, microwave, and millimeter-wave applications.

What are the main applications of this absorber?

Typical applications include reducing side lobes, improving front-to-back antenna ratio, absorbing clutter signals, and minimizing RF interference.

Where are RF flat sheet absorbers commonly used?

They are used in anechoic chambers, RF shielded rooms, antenna test facilities, radar testing labs, and EMC testing environments.

What is the typical reflectivity of the absorber?

It can achieve reflectivity levels up to approximately −50 dB, depending on thickness and frequency.

What is the power handling capability?

The absorber can handle approximately 1.5 kW/m² RF power with a CW radiated field strength around 540 V/m.

Is the absorber fire-retardant?

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

What is the maximum operating temperature?

The absorber can operate continuously at temperatures up to about 90 °C.

Is the absorber environmentally compliant?

Yes. The absorber is RoHS compliant and produces zero carbon dust, making it safe for laboratory environments.

What advantages does this absorber provide?

It helps reduce RF reflections, minimize interference, improve antenna measurement accuracy, and optimize electromagnetic testing environments.

What Our Clients Say

Wideband PU Absorber for RF Testing

September 17, 2026

We’re very impressed with the versatility of this PU absorber. With coverage extending up to 100 GHz, it has been a practical choice for our RF, microwave, and millimeter-wave testing needs. The wide frequency range makes it suitable for different applications and testing environments. Overall, a well-designed absorber for professional use.

Kimberly Foster

Lightweight Absorber for Space-Conscious Applications

September 17, 2026

We’re very happy with the lightweight design of this absorber. It’s easy to handle and works well for applications where both weight and available space need to be considered. The compact construction makes installation more convenient without compromising its practical use. Overall, it’s a well-designed and convenient solution for RF testing environments.