Protecting from Electromagnetic Shielding

Electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. Shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. Electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as RF shielding.

The shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. A conductive enclosure used to block electrostatic fields is also known as a Faraday cage. The amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic field.


RF Shielding Resources

Wardriving, What you need to know to protect your building or office

How to improve wireless security and performance using shielding

Top 5 myths on RF shielding a building

Benefits of building shielding for commercial drone threats

Do Low-E and Tinted Windows Affect WiFi or Other Radio Frequency Energy?

What is RF attenuation?

Does Your Facility's Security Plan Include a SCIF?

What Materials Go into Building a SCIF?

RF shielding in the news - An AGL Magazine Article