Results 141 to 150 of about 549,184 (227)
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Passive UHF RFID tags made with graphene assembly film-based antennas
Carbon, 2021Ultra-high frequency (UHF) radio frequency identification (RFID) tags with an antenna made of a highly flexible graphene assembly film (GAF) is presented.
Bohan Zhang +7 more
semanticscholar +1 more source
IEEE Antennas & Propagation Magazine, 2021
Ultrahigh frequency radio-frequency identification (UHF RFID) tags have shown enormous potential in wearable applications for sensing human vital signs.
Jie Pei, Jintu Fan, R. Zheng
semanticscholar +1 more source
Ultrahigh frequency radio-frequency identification (UHF RFID) tags have shown enormous potential in wearable applications for sensing human vital signs.
Jie Pei, Jintu Fan, R. Zheng
semanticscholar +1 more source
IEEE Transactions on Broadcasting, 1999
The implementation of DTV is forcing every television broadcaster to purchase a new antenna. Choosing the best antenna to meet all of the station's needs is not a simple task. With tower space at a premium, tower leasing rates soaring, and FCC deadlines approaching quickly, the broadcaster faces new and non-traditional issues-for example: Do I co ...
D. Casciola, G.L. Miers, R.A. Surette
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The implementation of DTV is forcing every television broadcaster to purchase a new antenna. Choosing the best antenna to meet all of the station's needs is not a simple task. With tower space at a premium, tower leasing rates soaring, and FCC deadlines approaching quickly, the broadcaster faces new and non-traditional issues-for example: Do I co ...
D. Casciola, G.L. Miers, R.A. Surette
openaire +1 more source
IEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.01CH37229), 2002
The use of fractal antenna techniques to reduce the size of a UHF linear dipole is investigated and discussed. Fractal designs are derived using an empirical method and a genetic algorithm based method. While both achieve size reduction, the latter design shows the most promise from a size reduction and design methodology standpoint, since simulation ...
S.D. Eason +5 more
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The use of fractal antenna techniques to reduce the size of a UHF linear dipole is investigated and discussed. Fractal designs are derived using an empirical method and a genetic algorithm based method. While both achieve size reduction, the latter design shows the most promise from a size reduction and design methodology standpoint, since simulation ...
S.D. Eason +5 more
openaire +1 more source
Broadband UHF flexible vivaldi antenna
2013 Loughborough Antennas & Propagation Conference (LAPC), 2013A novel Vivaldi flexible antenna with a -6 dB bandwidth from 150 MHz up to 900 MHz is presented. The whole antenna is realized on a 600 × 600 mm2 silicone foam substrate. In this paper we describe the design, the realization and the performances of this high gain and directive antenna.
Presse, Anthony +3 more
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IEEE Transactions on Antennas and Propagation, 1970
Theoretical and experimental results have shown that a satellite repeater can be used to measure accurately transmit and receive gains of ground-communications antennas. The satellite provides a uniform phase front and, for any appreciable elevation angle, meets the height requirement as a boresight source for large-aperture antennas.
A. Snyder, M. Messineo
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Theoretical and experimental results have shown that a satellite repeater can be used to measure accurately transmit and receive gains of ground-communications antennas. The satellite provides a uniform phase front and, for any appreciable elevation angle, meets the height requirement as a boresight source for large-aperture antennas.
A. Snyder, M. Messineo
openaire +1 more source
Loop-Fed Planar Inverted-L Antennas (PILAs) for Omnidirectional UHF on-Metal Tag Design
IEEE Transactions on Antennas and Propagation, 2020A new type of tag antenna, which is made by placing four identical planar inverted-L antennas (PILAs) in rotational symmetry constellation, is proposed for designing a miniature on-metal tag antenna.
Yong-Hong Lee +3 more
semanticscholar +1 more source
Exploiting Embroidered UHF RFID Antennas as Deformation Sensors
IEEE Journal of Radio Frequency Identification, 2020Textile-based antennas that can be embroidered directly onto cloth fabrics have shown great potentials for wearable applications. However, the performance of the embroidered antennas is significantly affected by the materials used, as well as the antenna’
Mengxia Yu +4 more
semanticscholar +1 more source
Self-Tuning UHF Epidermal Antennas
2019 IEEE International Conference on RFID Technology and Applications (RFID-TA), 2019Epidermal sensors based on Radiofrequency Identification are suitable to be attached onto the skin like a thin and flexible plaster and allow collecting biophysical parameters with a high level of comfort for the user. When working in the UHF band (860-960 MHz), the on-skin antenna performance (impedance matching and the corresponding read distance) is
Francesco Amato +3 more
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Online Partial Discharge Measurements in an Operating Generator Stator Winding Using UHF Antennas
IEEE transactions on dielectrics and electrical insulationOn stator windings, it is typical to perform online partial discharge (PD) measurements in the very high frequency (VHF) range using high-voltage capacitors to couple high-frequency currents, and in the ultra high frequency (UHF) range, using near-field ...
M. Partyka, Greg E. Bridges, B. Kordi
semanticscholar +1 more source