When microwave absorbers line the inside of a RF shielded room, this is referred to as an anechoic chamber. These absorbers make it possible to free oneself from reflections on the metal walls and to recreate a situation of electromagnetic propagation approaching those encountered in a free space situation, thus allowing repetitive measurements.
This type of installation allows access to equipment of various sizes (computer, car, satellite, electronic subsystems, antennas, computer rooms, command posts, etc.).
The applications are multiple and include:
– Civilian and military COS (EN, CISPR, DO, MIL STD, ISO, etc.)
– Data protection (defence, banking, computer room, etc.)
– Antenna measurements (base station, radar, mobile phone, etc.)
Performance depends on the quality of the supplies and the installation workforce.
Attenuation measurements must be performed to validate the performance of the anechoic chamber before use.