Results 31 to 40 of about 1,142 (140)
Design of a compact broadband circularly polarized RFID antenna
For problem that existing circularly polarized antenna is difficult to meet requirements of broadband and miniaturized application simultaneously, a compact broadband circularly polarized RFID antenna for global ultrahigh frequency(UHF) RFID read-write ...
HUANG Kai, ZHANG Ran, BEI Lulu
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Design of a Wideband Inductively Coupled Loop Feed Patch Antenna for UHF RFID Tag [PDF]
A planar wideband patch antenna for ultra-high frequency (UHF) radio frequency identification (RFID) tag for metallic applications is presented in this research work.
M. S. R. Bashri +2 more
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Hospitals and healthcare centers are experiencing a remarkable implementation of new systems based on wireless communications technologies. Many of these systems provide location services and identification of materials, instrumentation and even patients,
Victoria Ramos +10 more
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Case Study on Recording Pigs’ Daily Activity Patterns with a UHF-RFID System
The main objective of this paper is the monitoring of daily activity patterns of fattening pigs at different locations in the housing environment using UHF-RFID.
Anita Kapun, Felix Adrion, Eva Gallmann
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Physical-layer identification of UHF RFID tags [PDF]
In this work, we study physical-layer identification of passive UHF RFID tags. We collect signals from a population of 70 tags using a purpose-built reader and we analyze time domain and spectral features of the collected signals. We show that, based on timing features of the signals, UHF RFID tags can be classified, independently of the location and ...
Zanetti, Davide +2 more
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Reliable RF identification of people in moderate 2 ? 10 m ranges must be based on electromagnetic wave coupling mechanism. Due to acceptable antenna dimensions, UHF or microwave operational frequencies must be used. At these frequencies, propagation of electromagnetic waves is influenced by several important physical phenomena, namely by interferences,
Polvka, Milan +2 more
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Characteristics and Application of a Novel Loop Antenna to UHF RFID Receivers
A broadband two-layer and two quasihalf loops antenna (TTLA) at UHF is characterized and analyzed for ultrahigh frequency (UHF) near-field radiofrequency identification (RFID) applications.
Zijian Xing +4 more
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Applications of Fast-Moving RFID Tags in High-Speed Railway Systems
RFID technology has been widely utilized for the tracking and identification of numerous stationary and moving objects. One of the most challenging RFID applications has to do with the improvement in reliability, scheduling and efficiency of large-scale ...
Xiaoqiang Zhang, Manos Tentzeris
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The effect of soil and label attachment on the performance of RFID tags
The application of ultra high frequency radio frequency identification(UHF RFID) in soil sample management can greatly improve the management information level.
Li Da +4 more
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An Energy-Efficient ECC Processor of UHF RFID Tag for Banknote Anti-Counterfeiting
In this paper, we present the design and analysis of an energy-efficient 163-b elliptic curve cryptographic (ECC) processor suitable for passive ultrahigh frequency (UHF) radio frequency identification (RFID) tags that are usable for banknote ...
Xi Tan +5 more
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