access icon free Log-periodic dipole array antenna as chipless RFID tag

© The Institution of Engineering and Technology
Received 08/01/2014, Published 21/02/2014

A passive chipless radio-frequency identification (RFID) tag based on a log-periodic (LP) dipole array is proposed, where the tailorable band-rejection property of the LP aperture is utilised to realise a large number of codes. The proposed tag principle is successfully validated by measurements, where the absence and presence of the band-rejection is shown to carry the bit information. Its fabrication simplicity is also demonstrated by its implementation on a flexible substrate. Finally, two different tag formation schemes, based on a specific set of resonance suppressions, are discussed in detail.

Inspec keywords: dipole antenna arrays; radiofrequency identification; log periodic antennas

Other keywords: resonance suppression; band-rejection property; RFID; log-periodic dipole array antenna; flexible substrate; passive chipless radiofrequency identification tag; tag formation scheme

Subjects: Antenna arrays; RFID systems

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