Caractéristiques Chambre Anéchoïque

  Anechoic Chamber Design
  • Fully anechoic,
  • Frequency Range: 2GHz-18GHz (20GHz)
  • Chamber dimension
- outside: 7.92 x 4.02 x 3.36m (L x l x H),
- inside with absorver: 7.49 x 3.49 x 2.89m (L x l x H)
  • Quiet Zone Dimension : minimum 60cm diameter
  • Refectivity level within the quiet zone: less than:
- 24 dB for 2GHz,
- 30 dB for 4GHz,
- >50 dB for 10GHz.
  Anechoic Chamber Construction
  • Supporting Structure:
- modular shielded room : Shielding requirements are specied to be not too stringent
- with additional structural steel (support for the anechoic material)
  • Absorber layout:
- VHP-8-NRL on the receiving end wall and in the specular area (20.3cm),
- VHP-4-NRL manly on the side walls, the ceiling and on the floor (10.2cm),
- VHP-4-FL for walkways (20.3cm)
- FS-50-NRL in corners and in other dedicated areas (5.0cm).
  Positioning Equipment
  • DUT positioning equipment:
- Azimuth positioner: maximum DUT load: 100Kg, angular resolution: 0.03 deg .
- Site positioner: maximum DUT load: 8Kg, angular resolution: 0.01 deg.
  • Transmitter positioning equipment:
- Site positioner: : maximum DUT load: 8Kg, angular resolution: 0.01 deg.
- linear floor slides: manual between 0 to 6 m
  • X-Y Scanner: Positioning subsystems (scan area > 1m):
  Antennas
  • horn antenna 2 to 4GHz (developed in-house)
  • Yagi antenna 2.4 GHz
  • horn antenna 8 to 12GHz
  • parabolic dish antenna X band
  Data Acquisition system
  • Vector Network Analyzer ZVB20, 10MHz-20GHz, TDR
  • CTS positioner system: hardware: stepper motor + drivers + software
  • In-house command system

Mis à jour le 03 septembre 2015