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Please give the detailed explanation for the working principle of RFID.
asked Dec 2, 2015 in Electro-Communication by T.PRATHIBA
retagged Dec 2, 2015 by slow_learner | 133 views

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RFID Structure is continuously composed of 2 main hardware components. 
The transponder which is located on the product to be scanned and the reader which can be either just a reader or a read & write device, depending upon the system design, technology employed and the requirement. 

The RFID reader characteristically comprise of a radio frequency module, a controlling unit for configurations, a monitor and an antenna ti investigate the RFID tags. 

In addition, a number of RFID readers are in-built with an extra interface allowing them to forward the data received to another system (control system or PC).

RFID Tag – The actual data carrying tool of an RFID structure, in general comprise of an antenna (coupling element) and an electronic micro-chip.


RFID technology is used in a number of industries to carry out various tasks such as:

  • Asset tracking
  • Inventory management
  • Controlling access to confined areas
  • Personnel tracking
  • Supply chain management
  • ID badging
  • Counterfeit forestalling (e.g., in the pharmaceutical industry)
Reference :
answered Dec 3, 2015 by ppk