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  Vecta on RF Tagging
  RF tagging uses some form of radio-frequency coupling or transmission between a reader and transmitter to detect the proximity of a tagged article for security or tracking purposes.

Tags have to be attached to the objects being tracked or detected and come in two main forms - passive or active.

 
  Passive tags usually comprise only inductive and/or capacitive components and, when within a few 10s of centimetres of a detector, disturb a tuned circuit in the detector so the object's presence is detected.

Active tags have more capability and generally receive an interrogation signal and include additional information in a reply. They have a range of several 10s of metres but are physically larger and more expensive than passive tags due to their active circuitry and battery. Ultra-Wide band radio technology could be the key to greater RFID tag range at lower cost

 
  RF tagging is becoming more widespread as the costs of active tags and their supporting systems are falling allowing them to be applied to an ever wider variety of applications; organic semiconductors may be the key to reducing costs below the point at which widespread deployment takes off.
 
 

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Our extended network ensures we have the expertise to help you solve just about any business or technology problem.

 
  More info from: Terry.Moore@vecta5.com
 

Vecta Consulting Limited, Mulberry House, 2 The Spinney,
Cottenham, CAMBRIDGE, CB24 8RN

Tel: +44 (0) 1954 250222, Fax: +44 (0) 1954 252333

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