Many businesses use some form of contactless radio frequency identification (RFID) tag system, whether it be for supply chain management, inventory and asset tracking, building access cards, etc. An RFID tag includes an antenna for transmitting and receiving signals, and an RFID chip which stores the tag’s ID and other information. The tag can be easily applied to the surface of an item and read using radio frequency (RF) technology. These radio waves transmit data from the tag to a reader, which then transmits the information to an RFID computer program. This system enables instant visibility into the whereabouts of an item, such as its particular location in a warehouse, office, hospital, shipping container, and so forth.

Increased use of RFID tags streamlines item tracking processes, but at same time also creates frustrations over the inability to block the signal emitting from RFID tags when a problem arises. For various reasons raging from security concerns to signal collision, you may not want the tag to be read by your scanner. For instance, tags placed too close to each other can cause interference and the user cannot easily separate the tags, which are affixed to boxes/items.

In order to eliminate RFID interference (unwanted communication between the tag and the reader), the radio frequency signal needs to be blocked/isolated. This can be done by placing the tagged item(s) inside of a faraday enclosure.