Fujitsu Laboratories has developed a compact RFID tag that works on surfaces such as metal, which can otherwise impede radio waves.

The tag, 30mm long, 25mm wide and 0.5mm thick, can be attached to any material, including plastic cards, wearables and metal objects. Despite its small size, it has a communication range of about 2 meters.

Fujitsu Labs says its tag is more compact than typical metal-compatible RFID tags. The new tags could be used in a variety of applications, such as keeping track of machine parts and as a component in ID cards used to access buildings.

“Existing smartcards generally have a communication range of under approximately 10 cm so they do not allow for communication over longer distances. The new tag enables a much longer range of communication,” Manabu Kai, research manager at Fujitsu’s Advanced Wireless Technologies Lab, wrote in an email.

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