Reverberation Chamber

Exponent’s Reverberation Chamber (RC) provides an effective way of emulating a specific electromagnetic environment in a carefully-controlled laboratory space, providing a powerful tool for development, integration, and testing.  This chamber can be used to support projects related to antenna design and evaluation, specific absorption rate assessment (SAR), electromagnetic susceptibility (EMS) and electromagnetic compatibility (EMC) of electronic components and systems.  This chamber is easily portable and can be moved to the client facility if needed.

Why test in a reverberation chamber?

The rapid proliferation of wireless devices (Internet of Things) and the confined spaces in which they are installed requires a flexible test environment in order to replicate operating conditions and potentially complex multipath environments.  The reflective nature of the chamber aids in exposing the equipment under test (EUT) to a robust electromagnetic environment (EME), simultaneously illuminating the EUT from almost all possible incidence angles and polarizations.  This provides a more robust test environment than the semi-anechoic chamber for susceptibility and emission measurements on avionics systems or wireless systems.  Additionally, a RC provides a test environment closely resembling the operational environment of electronics operating inside cavities.  Aircraft cavities, metal rooms and below deck environments are considered to be highly reverberant spaces and the EME inside those spaces can best be replicated inside a reverberation chamber.

Accompanying this chamber is a dedicated suite of test equipment including:

  • Spectrum Analyzer from 100 Hz to 26.5 GHz 
  • Vector Network Analyzer from 300 kHz to 20 GHz 
  • Signal generator to 20 GHz 
  • Isotropic field probe, 80 MHz to 40 GHz, 200 V/m 
  • RF power meter 
  • Line Impedance Stabilization Network (LISN) 
  • Variety of Biconical, Yagi, Horn, and Dipole antennas 
  • RF Amplifiers and attenuators