Publication type: Article in scientific journal
Type of review: Not specified
Title: An active tagging system using circular-polarization modulation
Authors : Kossel, M.A.
Kung, Roland
Benedickter, H.
Biichtokd, W.
DOI : 10.1109/22.808966
Published in : IEEE Transactions on Microwave Theory and Techniques
Volume(Issue) : 47
Issue : 12
Pages : 2242
Pages to: 2248
Issue Date: 1999
Publisher / Ed. Institution : IEEE
ISSN: 0018-9480
Language : English
Subjects : RFID; Modulation; Frequency-hopping; Microwave
Subject (DDC) : 004: Computer science
621.3: Electrical engineering and electronics
Abstract: An active read/write microwave tagging system using circular-polarization modulation as a novel modulation scheme for radio-frequency identification systems is presented. The proposed modulation scheme reduces demodulation complexity and power consumption on the battery-powered tag. Additional coding of the circular-polarization modulated data reduces transmission errors due to polarization inversion at multipath propagation. In multiple-reader environments, the main jamming threat occurs from power carriers of different interrogators. A combination of circular-polarization modulation and frequency hopping is presented that shows an increased immunity against multipath phenomena for multiple-tag and multiple-reader environments.
Fulltext version : Published version
License (according to publishing contract) : Licence according to publishing contract
Departement: School of Engineering
Organisational Unit: Institute for Signal Processing and Wireless Communications (ISC)
Appears in Collections:Publikationen School of Engineering

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