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Field as a driver for a passive circuit and antennae

  1. Nov 26, 2009 #1
    Rfid: wondering what some more of the details are of this technology.

    Put a field as a driver for a passive circuit and antennae emmitting some digital code at a frequncy, and some other receiver tuned to receive this and process..

    Anyone know some more specifics?
     
  2. jcsd
  3. Nov 26, 2009 #2

    dlgoff

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  4. Nov 26, 2009 #3
    Pretty informative, but I'm wondering how the mechanism of an EM wave triggers some IC with stored information - to drive a signal in an antennae with that info.. More of a wireless digital signal transmission question

    Tx
     
  5. Nov 26, 2009 #4

    dlgoff

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    Re: rfid

    http://electronics.howstuffworks.com/gadgets/high-tech-gadgets/rfid2.htm
     
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