RF Absorber Glossary

Welcome to the dB Absorber technical glossary. These educational resources explain key concepts in RF and microwave absorber technology, anechoic chamber design, and electromagnetic compatibility testing.

Glossary Terms

What is Anechoic?

Learn about anechoic chambers, how they work, and why they're essential for RF testing. Covers electromagnetic isolation, quiet zones, and broadband absorption technology.

What is Volumetrically Loaded?

Understand volumetric loading in RF absorber manufacturing—how carbon particles are distributed throughout foam to create consistent electromagnetic properties.

Pyramidal Absorber Configurations

Explore the geometric designs used in RF absorbers—pyramidal, wedge, and convoluted surfaces—and how they optimize electromagnetic wave absorption.

NRL 8000 Requirements

Learn about NRL 8000 I, II, and III fire safety standards established by the Naval Research Laboratory for materials used in anechoic chambers and testing facilities.

What are EMC Measurements?

Understand electromagnetic compatibility (EMC) testing—emissions testing, immunity testing, and regulatory compliance for electronic devices.

---

Why These Terms Matter

Understanding RF absorber technology helps engineers and procurement teams make informed decisions when specifying anechoic chamber materials. Our glossary covers the technical foundations that underpin our product line.

Our Products

All dB Absorber products are manufactured to meet NRL 8000 fire safety standards and provide broadband absorption from 30 MHz to 110 GHz. Browse our full selection of pyramidal absorbers, wedge absorbers, and specialty configurations.