A passive UHF RFID meandered tag antenna with tuning stubs

In this paper, we present a new design of passive UHF radio frequency identification (RFID) tag, which demonstrates a read range of 4.6 - 5.2 m at 915 MHz. The Kurokawa's method and Friis free-space formula are adapted to calculate the theoretical power reflection coefficient and maximum read r...

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Bibliographic Details
Main Authors: Sung-Jung Wu, Tzyh-Ghuang Ma
Format: Conference Proceeding
Language:English
Subjects:
Application specific integrated circuits
Costs
Impedance
Passive RFID tags
Radiofrequency identification
Reflection
Reflector antennas
RFID tags
RFID UHF band
Tuning
UHF antennas
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Description
Summary:In this paper, we present a new design of passive UHF radio frequency identification (RFID) tag, which demonstrates a read range of 4.6 - 5.2 m at 915 MHz. The Kurokawa's method and Friis free-space formula are adapted to calculate the theoretical power reflection coefficient and maximum read range, respectively. By means of simple tuning techniques, the proposed antenna demonstrates a bandwidth of 35 MHz with a compact size of 25 mm by 79 mm. This design is also found to be insensitive to dielectric loading. The performance analysis is presented along with the experimental data, which is in close agreement with the theoretical values.
ISSN:2165-4727
2165-4743
DOI:10.1109/APMC.2006.4429688