IEICE Electronics Express
Online ISSN : 1349-2543
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Triangular loop resonator based compact chipless RFID tag
Shahid RaufMuhammad Ali RiazHumayun ShahidMuhammad Sohail IqbalYasar AminHannu Tenhunen
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2017 Volume 14 Issue 4 Pages 20161262

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Abstract

A novel, frequency selective surface (FSS) inspired, fully passive, chipless data encoding circuit capable of being operated as a radio frequency identification (RFID) tag is presented. The tag is composed of finite repetitions of the unit cell realized on a grounded FR4 substrate having an overall size of 27.5 × 30 mm2. The unit cell is made up of several triangle-shaped resonators patterned in a looped fashion. Variation in the geometric structure of the tag, achieved by addition or removal of nested loops, corresponds to a specific bit sequence. Each sequence is represented in the spectral domain as a unique frequency signature of the resonators. The proposed 10-bit tag covers the spectral range from 4 to 11 GHz. The tag is compact, robust, and exhibits a stable response to impinging signals at different angles of incidence.

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© 2017 by The Institute of Electronics, Information and Communication Engineers
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