|Home||Internet of Things||Aerospace||Apparel||Energy||Defense||Health Care||Logistics||Manufacturing||Retail|
Ask The Experts Forum
Is It Possible to Read a Passive RFID Tag Using an Active Tag?
Is this something that could be done, or would it not be feasible?
I am unaware of any active tags that would be able to read a passive high-frequency (HF) or ultrahigh-frequency (UHF) tag. Active tags broadcast a signal at 433 MHz, 915 MHz or 2.45 GHz. In order to read a passive UHF tag, an active tag operating 915 MHz would need to put out enough energy to energize the tag, and then it would need to have a receiver to read the tag. I do not believe an active tag puts out enough energy to power up a passive tag—and, of course, no active tags have the ability to receive a signal.
If any of our readers can provide information regarding the maximum output of a 915 MHz active tag and the minimum amount of energy necessary to power a tag, that would help to determine whether an active tag could energize a passive tag.
—Mark Roberti, Founder and Editor, RFID Journal
Login and post your comment!
Not a member?
Signup for an account now to access all of the features of RFIDJournal.com!
SEND IT YOUR WAY
RFID JOURNAL EVENTS
ASK THE EXPERTS
Simply enter a question for our experts.
|RFID Journal LIVE!||RFID in Health Care||LIVE! LatAm||LIVE! Brasil||LIVE! Europe||RFID Connect||Virtual Events||RFID Journal Awards||Webinars||Presentations|