by bwetman » Tue Dec 29, 2015 5:07 am
Hello,
The passive RFID is basically made up of three parts: Antenna which is responsible for capturing energy and transferring the tag ID, Semiconductor chip appended to the antenna and an encapsulation which maintains the tag integrity. The encapsulation protects the antenna and chip from harsh environmental conditions. These encapsulations can be made up of small glass vial or from a laminar plastic substrate with adhesive on one side so that it can be easily attached to the goods.There can be one more method to transmit the signal from the tag that is when passive RFID tag stores the energy of the signal from the reader in an onboard capacitor. The tag uses the energy of the capacitor when it is fully charged.
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