Introduction
RF shielded enclosures are used throughout industry for many purposes including:
- EMC Compliance testing
- Antenna characterisation
- Research facilities
- RF transceiver repair and calibration
- Computer accommodation
- Magnetic Resonance Imaging (MRI)
- Tempest security
- Broadcast facilities
An RF shielded enclosure (or Faraday Cage) is basically a room lined on all internal surfaces with a metallic skin to shield against RF.
The shielded enclosure can be constructed using prefabricated panels clamped together, or by overlaying the internal
surfaces of a room with copper or aluminium foil. All power cabling entering an RF shielded enclosure passes through
filters and air flow into the RF shielded enclosure is provided via honeycomb waveguide vents.
Modular RF shielded enclosures:
Our modular RF shielded enclosures are fully demountable and can easily be extended or relocated. The panels are
constructed from particle board laminated on either side with galvanised steel sheets. These panels are clamped together
in a zinc plated steel frame.
The RF door is a key component of the enclosure and utilises sliding edge (sometimes called knife edge) construction,
with a double row of beryllium copper contact fingers. Specialised heavy duty hinges with internal bearings are used for
long term alignment reliability.
Compliance Engineering can provide an RF shielded enclosure designed in line with your requirements.
DIY Installation:
The RF shielded enclosure can be supplied in a kit form with detailed assembly instructions, saving you a significant
amount on the cost of installation.
Shielding performance:
Compliance Engineerings RF shielded enclosures will provide a minimum of 100dB attenuation to radiated RF fields over
the frequency range14kHz to 1GHz (Refer MIL-STD-285).
RF enclosures installed by Compliance Engineering will have an RF shielding test performed after assembly and prior to
installation of any RF Absorbing materials (where applicable).
The site where the enclosure is to be installed should be relatively dust free and flat with a maximum slope of 1cm in
3m. Sufficient clear space is required inside the building for placement of the enclosure materials during the
construction phase.