Part number reference:
DMC-PU-PY-MI-50, DMC-PU-PY-MI-100, DMC-PU-PY-MI-200, DMC-PU-PY-MI-300, DMC-PU-PY-MI-500, DMC-PU-PY-MI-700, DMC-PU-PY-MI-1000
| Model Number | 30 MHz | 80 MHz | 300 MHz | 500 MHz | 1 GHz | 3 GHz | 6 GHz | 10 GHz | 18 GHz | 40 GHz | 110 GHz |
| DMC-PU-PY-MI-50 | 30 | 35 | 40 | 50 | 45 | ||||||
| DMC-PU-PY-MI-100 | 30 | 35 | 40 | 45 | 50 | 45 | |||||
| DMC-PU-PY-MI-200 | 27 | 35 | 40 | 45 | 50 | 50 | 48 | ||||
| DMC-PU-PY-MI-300 | 25 | 35 | 40 | 50 | 50 | 50 | 50 | 47 | |||
| DMC-PU-PY-MI-500 | 20 | 30 | 40 | 45 | 50 | 50 | 50 | 50 | 48 | ||
| DMC-PU-PY-MI-700 | 8 | 25 | 35 | 40 | 50 | 50 | 50 | 50 | 50 | 48 | |
| DMC-PU-PY-MI-1000 | 11 | 30 | 40 | 45 | 50 | 50 | 50 | 50 | 50 | 47 | |
| DMC-PU-PY-MI-1200 | 5 | 13 | 35 | 40 | 45 | 50 | 50 | 50 | 50 | 50 | 47 |
A pyramidal microwave absorber is a carbon-loaded polyurethane foam material designed to absorb RF and microwave energy. It is commonly used inside anechoic chambers to reduce reflections and improve measurement accuracy.
They absorb electromagnetic waves and prevent reflections inside the chamber. This creates a controlled environment required for accurate antenna and EMC testing.
Typical pyramidal microwave absorbers support a very wide frequency range from tens of MHz to over 100 GHz depending on the absorber design and height.
Most pyramidal absorbers are made from carbon-impregnated polyurethane foam. This material converts electromagnetic energy into heat and reduces RF reflections.
Industries such as aerospace, defense, telecommunications, automotive, and research laboratories commonly use them for RF and EMC testing.
The pyramid shape provides a gradual impedance transition that allows RF waves to enter the absorber and dissipate as heat. This minimizes reflection back into the chamber.
They are used in anechoic chambers for antenna measurements, EMC testing, radar cross-section testing, and wireless device validation.
Yes, many high-quality absorbers are manufactured with fire-retardant materials and comply with standards such as UL94 or NRL-8093.
High-performance absorbers can achieve reflectivity levels as low as −50 dB depending on frequency and absorber height.
DMCRF absorbers provide broadband RF absorption, high power handling, and reliable performance for EMC and antenna testing chambers. They are designed to deliver accurate RF measurement environments.
We’re very pleased with this RF absorber. The design makes it suitable for a range of professional applications, including EMC testing, antenna measurements, and radar-related work. It fits well into specialized testing environments and has a solid, professional feel. Overall, a practical solution for demanding RF laboratory applications.
We’re very pleased with this absorber, especially for applications involving demanding RF test signals. The high power handling capability provides useful flexibility for laboratory testing and gives the product a solid, professional feel. It has been a practical addition to our setup and fits well with our requirements for reliable RF testing.
The pyramidal design provides a gradual transition for incoming RF energy, making it a practical choice for chamber absorption applications.
A strong option for antenna chambers where minimizing unwanted reflections is important for accurate measurement results.
The carbon-impregnated polyurethane foam provides a purpose-built solution for absorbing electromagnetic energy in demanding test environments.
