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

Request Quote

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

Effective Absorber for Antenna Measurements

September 25, 2026

We’re very pleased with this absorber for our antenna measurement setup. It helps reduce side lobes and unwanted clutter, creating a cleaner testing environment for our measurements. Overall, it has been a practical and useful addition to our facility.

Jasmine Lawson

Flexible Thickness Options for RF Chamber Requirements

September 25, 2026

We’re very pleased with the flexibility offered by the PU-FLT series. Having different thickness options makes it easier to select the right absorber for specific chamber requirements. The range is practical and gives us more flexibility when planning our RF testing setup.

Nolan Montgomery

Fire-Retardant Absorber for Professional Laboratories

September 22, 2026

We’re very pleased with the safety benefits of this absorber. The fire-retardant properties are particularly useful in our professional laboratory and RF testing environment. Combined with its practical design and reliable performance, it has been a valuable addition to our setup.

Brianna Fletcher

Versatile RF Absorber for Testing Facilities

September 22, 2026

We’re very pleased with this RF absorption solution for our testing environment. It works well for applications such as anechoic chambers, shielded rooms, and antenna test facilities. The overall performance has been reliable and gives us useful flexibility across different RF testing requirements.

Cameron Wallace

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

Submit Review