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BlogsAsk The Experts ForumIs It Possible to Read the Same EPC from an RFID Tag via Both HF (With a Smartphone) and UHF (from 3 to 5 Meters Away)?
Is It Possible to Read the Same EPC from an RFID Tag via Both HF (With a Smartphone) and UHF (from 3 to 5 Meters Away)?
We are participating in developing a Russian state labeling system, currently for tracking fur goods, though it might possibly be extended for monitoring medicines. The solution is now built on the UHF standard, but I think it would be interesting if the labels were able to be read by smartphones, as it would mean that more people could verify the authenticity of goods without special devices.
A tag containing an Electronic Product Code (EPC) is a passive ultrahigh-frequency (UHF) transponder operating at 856 to 960 MHz. An RFID reader in a smartphone operates at 13.56 MHz and uses a different air-interface protocol—the Near Field Communication (NFC) protocol, which incorporates the ISO 14443 and ISO 15693 standards. So it would not be possible to read an EPC using a smartphone at this time. In the future, phones will likely incorporate a passive UHF reader, as well as a passive HF reader, and it would then be possible to do what you describe.
—Mark Roberti, Founder and Editor, RFID Journal
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