NDLI: Improving Backscatter Radio Tag Efficiency

Content Provider	IEEE Xplore Digital Library
Author	Bletsas, A. Dimitriou, A.G. Sahalos, J.N.
Copyright Year	1963
Abstract	This paper studies tag properties for optimized tag-to-reader backscatter communication. The latter is exploited in RF identification (RFID) systems and utilizes binary reflection coefficient change of the tag antenna-load circuit. It is shown that amplitude maximization of complex reflection coefficient difference between the two states is not sufficient for optimized tag-to-reader backscatter communication, contrary to what is commonly believed in the field. We provide a general tag load selection methodology that applies to any tag antenna, including minimum scattering antennas as a special case. The method is based on tag antenna structural mode closed-form calculation (given three values of tag radar cross section), employs simple antenna/communication theory, and applies to both passive, as well as semipassive RFID tags.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	1502
Ending Page	1509
Page Count	8
File Size	506296
File Format	PDF
ISSN	00189480
Volume Number	58
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Backscatter Radiofrequency identification Reflection Loaded antennas Radar antennas Antenna theory Radio frequency Reflector antennas Circuits Radar scattering structural mode Minimum scattering receiver sensitivity RF identification (RFID)
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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