high temperature rf absorber
High Power Handling RF Absorber backside view
High Power Handling RF Absorber corner view
High Power Handling RF Absorber top angle view
High Power Handling RF Absorber water droplets closeup
water resistant closeup High Power Handling RF Absorber
water resistant High Power Handling RF Absorber closeup view
water resistant High Power Handling RF Absorber top view
water resistant High Power Handling RF Absorber

High-temperature RF absorber

DMC offers RF absorbers made of heat-resistant rubber that can withstand temperatures ranging from 50°C to 150°C and operate across a broadband frequency range of 1GHz to 40GHz. Both at normal incidence and off angle incidence, the absorber’s pyramid structure and lossy material offer exceptional reflectivity performance.

Features:

  • Frequency range 1GHz to 40GHz
  • Typical reflectivity as high as -35dB
  • Power handling capacity 2kW/m2
  • Water and UV resistant
  • Fire Retardant per NRL-8093 1,2,3, UL 94 and DIN 4102-B2
  • Continuous working temperature up-to 150°C
  • RoHS Compliant
  • Zero Carbon dust

Part number reference:
DMC-PU-PY-MI-HRU-5, DMC-PU-PY-MI-HRU-10, DMC-PU-PY-MI-HRU-15, DMC-PU-PY-MI-HRU-20, DMC-PU-PY-MI-HRU-40

Datasheet
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TYPICAL REFLECTIVITY AT NORMAL INCIDENCE OVER FREQUENCY RANGE IN dB

Frequently Asked Questions

What is a High Temperature Handling RF Absorber?

It is a heat-resistant RF absorbing material designed to reduce electromagnetic reflections in environments with elevated temperatures such as RF test chambers and antenna measurement labs.

 

What frequency range does this absorber support?

The absorber operates across a broadband frequency range from 1 GHz to 40 GHz.

What is the typical reflectivity of the absorber?

The absorber provides reflectivity levels up to approximately −35 dB, depending on frequency and absorber size.

 

What material is used to manufacture this absorber?

It is made from heat-resistant rubber material combined with RF absorbing compounds to ensure stable performance at high temperatures.

What is the power handling capability?

The absorber can handle approximately 2 kW/m² RF power, making it suitable for high-power testing environments.

 

What is the maximum operating temperature?

The absorber can operate continuously at temperatures up to 150 °C, making it ideal for thermal RF testing applications.

Is the absorber resistant to environmental conditions?

Yes. It is water-resistant, UV-resistant, and suitable for demanding environmental conditions.

 

Is the absorber fire-retardant?

Yes. The absorber complies with NRL-8093, UL-94, and DIN 4102-B2 fire safety standards.

Where are high-temperature RF absorbers commonly used?

They are commonly used in anechoic chambers, antenna test facilities, radar testing environments, and high-temperature RF measurement systems.

 

What advantages does this absorber provide in RF testing?

It reduces RF reflections, maintains stable absorption at high temperatures, improves measurement accuracy, and ensures reliable performance in demanding RF testing environments.

What Our Clients Say

Reliable Absorber for Thermal RF Testing

September 23, 2026

We’re very pleased with this absorber for our thermal RF testing. It feels well made and has handled the conditions in our test environment nicely. Overall, it has been a practical and dependable addition to our testing setup.

Avatar for Joanna Franklin
Joanna Franklin

Low Reflectivity for Accurate RF Measurements

September 23, 2026

We’re very pleased with the low reflectivity performance of this absorber. It has helped us create more controlled conditions during antenna and RF measurements, making our testing environment more consistent and reliable.

Avatar for Travis Mercer
Travis Mercer

High-Temperature Performance for RF Applications

September 18, 2026

We’re very pleased with this product for our demanding RF applications. Its ability to operate continuously at temperatures up to 150°C is particularly useful for our work. The performance has been reliable, and the product has handled our requirements well.

Avatar for Danielle Foster
Danielle Foster

Reliable Pyramid Absorber Performance

September 18, 2026

We’re happy with the performance of this absorber in our chamber setup. The pyramid structure works well for our application and has helped support a controlled RF environment. Overall, the build quality and RF performance have met our expectations.

Avatar for Jeffrey Thompson
Jeffrey Thompson

Heat-Resistant Broadband RF Absorber for Reliable Testing

September 11, 2026

We like the combination of heat resistance and broadband performance. It has been a useful addition to our RF test facility.

Avatar for Samantha Mills
Samantha Mills
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