Could We Use a 2.4 GHz Active RFID Reader to Interrogate 2.4 GHz Passive Tags?

By RFID Journal

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Ask The ExpertsCould We Use a 2.4 GHz Active RFID Reader to Interrogate 2.4 GHz Passive Tags?
RFID Journal Staff asked 8 years ago
Would it be possible for our company to do this, given the same frequency?

—Name withheld

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No, I’m sorry, but that would not be possible. Frequency is not the only factor involved in tag-to-reader communication—the tags and readers must also employ the same air-interface protocol. The protocols can be based on open standards, or they can be proprietary. Active and passive tags utilize different protocols, so it would be like a passive tag speaking French to an active RFID system that only understood Chinese.

—Mark Roberti, Founder and Editor, RFID Journal

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