18in Pyramidal Polyurethane Foam Anechoic Chamber Absorber Tile
Composition: carbon and fire retardant chemical loaded polyurethane foam
Working Temperature: -85°F to 176°F (-50°C to +80°C)
Environment: Indoor Use
Fire Retardancy: Certified Independent Lab Test Data to NRL 8093 Tests 1, 2 & 3
Optional Test Data For UL94 and DIN 4102-B2
Power Typical Power Handling: 1kW/m²
*Special Order: 8-10 Weeks
Dimensions
| A | B | C | D | E/F | |
| Total Height | Pyramid Base | Pyramid Height | Base Height | Base Size | #Pyramids |
| 18in/457.2mm |
standard |
standard |
standard |
24x24in/ 610x610mm |
16 per Absorber |
Reflectivity
| Normal frequency (GHz) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 0.1 Ghz | 0.2 Ghz | 0.3 Ghz | 0.5 Ghz | 1 Ghz | 3 Ghz | 5 Ghz | 10 Ghz | 15 Ghz | 40 Ghz | |
| Reflectivity (-dB) at normal incidence | - | - | 20 | 28 |
35 |
45 |
50 |
60 |
60 |
60 |
Frequently Asked Questions
What frequency range does the 18in absorber cover?
The 18in absorber provides effective absorption from 200 MHz, extending coverage into lower VHF frequencies with excellent broadband performance.
Is the 18in absorber in stock?
The 18in absorber is a special order item. Contact us for lead times and availability.
What are dB Absorber pyramidal absorbers made of?
Our absorbers are made of carbon and fire retardant chemical loaded polyurethane foam, volumetrically loaded for consistent electromagnetic properties throughout the material.
Are your absorbers fire rated?
Yes, all our absorbers are certified to NRL 8093 Tests 1, 2 & 3 fire safety standards. Optional test data is available for UL94 and DIN 4102-B2 compliance.
What is the operating temperature range?
Our absorbers operate from -85°F to 176°F (-50°C to +80°C), suitable for standard indoor testing environments.
