Radio Frequency Identification Tags and Transponders

Radio Frequency Identification Tags and Transponders

For access to this article, please select a purchase option:

Buy chapter PDF
(plus tax if applicable)
Buy Knowledge Pack
10 chapters for £75.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
Introduction to Sensors for Ranging and Imaging — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

Transponders were originally electronic circuits that were attached to some item whose position or presence was to be determined. The transponder operated by responding to a request received from an interrogator, either by returning some data from the transponder, such as an identity code, or returning the original properties of the signal received from the interrogator with a minimum time delay. Because the interrogator signal is much stronger than the returned signal, the former would swamp the latter unless some characteristic of the response were different. This difference can usually be achieved by separating the interrogation and response temporally or by changing the frequency. It is also possible to encode the response with some form of spread-spectrum modulation that can be decoded by the receiver.

Chapter Contents:

  • 15.1 Principle of Operation
  • 15.2 History
  • 15.3 Secondary Surveillance Radar
  • 15.3.1 Interrogation Equipment
  • 15.3.2 Transponder Equipment
  • 15.3.3 Operation
  • 15.3.4 SSR Issues
  • Sidelobe problems
  • Congestion
  • 15.4 Radio Frequency Identification (RFID) Systems
  • 15.4.1 Electronic Article Surveillance (EAS)
  • Radio Frequency Tags
  • Acousto-Magnetic Tags
  • Microwave Tags (E-tags)
  • 15.4.2 Multibit EAS Tags
  • 15.4.3 Magnetic Coupled RFID Transponder Systems
  • Operational Principles
  • 15.4.4 Electromagnetic Coupled RFID Transponder Systems
  • 15.5 Other Applications
  • 15.5.1 House Arrest Tag
  • 15.6 Social Issues
  • 15.7 Technical Challenges
  • 15.8 Harmonic Radar
  • 15.9 Battlefield Combat ID System (BCIS)
  • 15.9.1 Combat Identification: The Future
  • 15.10 References

Inspec keywords: decoding; radiofrequency identification; transponders; spread spectrum communication

Other keywords: receiver; interrogator; transponders; identity code; electronic circuits; spread-spectrum modulation; decoding; radiofrequency identification tags; time delay

Subjects: Codes; RFID systems

Preview this chapter:
Zoom in

Radio Frequency Identification Tags and Transponders, Page 1 of 2

| /docserver/preview/fulltext/books/ra/sbra014e/SBRA014E_ch15-1.gif /docserver/preview/fulltext/books/ra/sbra014e/SBRA014E_ch15-2.gif

Related content

This is a required field
Please enter a valid email address