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James Demers
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- Can I make a passive RFID tag switchable, by inserting a PIN diode into the antenna loop?
I have a project that calls for activating a passive RFID tag by applying a few volts, and a PIN diode seems to be what I need. I can insert it into the antenna loop, where it would prevent an RF signal from being sent unless a forward DC voltage was present. I only know enough about electronics to be dangerous, and I'm hoping somebody can advise me on the appropriate specs for the diode. The spec sheets for these things are baffling: https://rocelec.widen.net/view/pdf/wkwnaj16jm/INFNS15694-1.pdf and there's not a lot of info on low-power applications like mine. (We're talking about the inexpensive 13.56 MHz stick-on tags that they put on retail products.)
Any help would be much appreciated!
Any help would be much appreciated!
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