×

Warning

JUser: :_load: Unable to load user with ID: 92
JUser: :_load: Unable to load user with ID: 24
JUser: :_load: Unable to load user with ID: 22
Print this page
Tuesday, 04 June 2013 18:39

Adequate RF Protection Is Very Important

RF protection or Radio frequency shielding involves the construction of enclosures for the purpose of reducing the transmission of electric or magnetic fields from one space to another. The shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. With the increase in sensitive computer and electronic equipment, the issues of interference, unauthorized surveillance, and protection from high voltages have become increasingly

important. 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. RF protection enclosures are used in these situations to reduce the levels of radio frequency radiation that enters or leaves the enclosed space.

Copper is an ideal material to use in RF protection because of its high electrical conductivity. This feature, combined with its other physical properties, ductility, malleability, and ease of soldering, make it an ideal material for radio frequency shielding. Copper also absorbs radio and magnetic waves. A commonly used shielding method is to coat a surface with a material loaded with a suitable material, typically copper, silver or nickel in the form of very small particles. Sheet copper can be formed into essentially any shape and size, and electrically connected to a grounding system to provide an effective radio frequency enclosure. The 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. Other materials used for electromagnetic shielding include sheet metal, metal screen, and metal foam. Any holes in the shield or mesh must be significantly smaller than the wavelength of the radiation that is being kept out, or the enclosure will not effectively approximate an unbroken conducting surface. Another commonly used shielding method, especially with electronic goods housed in plastic enclosures, is to coat the inside of the enclosure with a metallic ink or similar material. The ink consists of a carrier material loaded with a suitable metal, typically copper or nickel in the form of very small particulates. It is sprayed on to the enclosure and, once dry, produces a continuous conductive layer of metal, which can be electrically connected to the chassis ground of the equipment, thus providing effective shielding.

Radio frequency shielded openings help ensure sensitive and confidential information is contained in commercial and government buildings. RF protection is necessary in healthcare facilities to prevent radio interference with medical equipment. Radio frequency shielded openings are used in medical facilities, business offices, test labs, computer data processing, security centers, financial centers, government and military facilities. The openings are needed to help avoid computer crashes, compromise confidential information, interference from local radio frequency transmitters: radio towers, TV broadcast, production welders, airport radar and MRI test equipment.

 

More: http://www.amazines.com

Related items

  • Bel Trading & Consulting Ltd offers a new modification of the system of protection against UAVs and drones Bel Trading & Consulting Ltd offers a new modification of the system of protection against UAVs and drones

    Bel Trading & Consulting Ltd, a company specializing in protecting aircrafts from birds and drones, pays great attention to the problem of the uncontrolled and dangerous use of drones near the runways of civilian airports.

  • What are composites? Where can they be used? What are composites? Where can they be used?

    Thanks to their diversity, composites are used in virtually every industry, and also in medicine, especially in dentistry. What are composites and where can they be used? Here is some basic information on them.

  • iFoneMate introduces the useful Guide for effective iPhone data recovery iFoneMate introduces the useful Guide for effective iPhone data recovery

    The iFoneMate, iPhone data recovery software introduces the simplest and the least technical method of recovering lost data from an iPhone. The user-friendly software facilitates users to recover lost contacts, notes, messages, photos and more in just seconds.

  • Viewing pleasure Viewing pleasure

    There is nothing more pleasant for a lover of cinematography on a winter’s evening than to sit in a comfortable chair with a cup of hot tea and watch a good movie.

  • Logitech G700 wireless game mouse: Solve Mouse Delay Well Logitech G700 wireless game mouse: Solve Mouse Delay Well

    This article is about the top game accessory manufacturer Logitech, Logitech G700 gaming mouse features, colors, sales points and drivers. Wireless mouse is the hottest topic in 2010, all company were launched the new product. Such as Razer Mamba mouse, Microsoft SideWinder X8 mouse and Rapoo V8 mouse and so on. Here we will say the Logitech G700 wireless gaming mouse.