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Radio Frequency Shielding (RFI) and Brass Extrusions

Radio Frequency Shielding (RFI) and Brass Extrusions

Brass Extrusions and RFIRadio frequency shielding involves the construction of enclosures for the purpose of reducing the transmission of electric or magnetic fields from one space to another. With the increase in sensitive computer and electronic equipment, the issues of interference, unauthorized surveillance, and protection from high voltages have become increasingly important. So why is RF shielding related to brass extrusions? Read on to learn more.

All electronic and computer systems radiate certain frequencies of radio and magnetic waves. These signals can be received by special surveillance equipment, compromising the privacy of their source. In some cases, they can interfere with, or may be affected by, other equipment in the vicinity. Radio frequency shielding enclosures are used in these situations to reduce the levels of RF radiation that enters or leaves the enclosed space.

One of the characteristics of copper is its high electrical conductivity. This feature, combined with its other physical properties, ductility, malleability, and ease of soldering, make it an ideal material for RF shielding. Sheet copper can be formed into essentially any shape and size, and electrically connected to a grounding system to provide an effective RF enclosure.

RF shielding enclosures are usually designed to filter a range of frequencies under specified conditions. Most often, they are constructed for government or corporate groups with particular requirements. Properly designed and constructed copper enclosures can provide a high degree of effectiveness to suit practically any demand.

Brass/bronze extrusions, specifically C38500 Architectural Bronze, are the preferred materials for framing members, door frames and sealing components for RFI Enclosures.  Manufacturers of RFI Enclosures usually use components from custom extrusions.  In some cases stock rectangles, angles and tees provide the necessary materials to make these custom enclosures. 

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