Results 181 to 190 of about 17,978 (221)
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Manufacturing technologies for UHF RFID epidermal antennas
2016 46th European Microwave Conference (EuMC), 2016Skin-mounted electronics is the next wave beyond wearable devices for unobtrusively picking up vital signs (temperature, hydration, biopotentials…) over the body surface. The recent evolution of UHF RFID technology towards epidermal sensing applications plays a key role to provide stick on sensors with wireless powering and remote reading.
Amendola, Sara +4 more
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Small‐meandered coplanar antenna in UHF bands
Microwave and Optical Technology Letters, 2010AbstractA low profile, electrically small coplanar antenna with omnidirectionnal radiation is presented. The antenna is less than λ0/400 in height and λ0/14 in lateral dimension. It is matched to 50 Ω without the need for external matching. The antenna's geometry and concept design using short‐circuiting and line‐meandering techniques are presented in ...
Boucher, Solène, Sharaiha, Ala
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Design of UHF miniature discone antenna
Proceedings of the 9th International Symposium on Antennas, Propagation and EM Theory, 2010In this paper, a novel miniature discone antenna operated in the ultra-high frequency (UHF) band is presented. The introduction of the back cavity increases the cone angle and reduces the total size. In order to form a back cavity, the bottom of the cone is expanded and bended upward. The size of the discone antenna is reduced effectively.
Wei Yan, Ai-xin Chen, Tie-hua Jiang
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Body wearable antennas for UHF/VHF
2008 Loughborough Antennas and Propagation Conference, 2008The development of antennas which can be worn on the body is of increasing interest within both the military and civil domain. Body wearable antennas present a considerable design challenge, particularly as most applications require the antenna to be unobtrusive and low-profile.
James C. G. Matthews +3 more
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Proceedings of International Conference on Antenna Theory and Techniques, 1997
The vertically polarized antenna for broadcasting in the UHF range has been developed by the authors. The coaxial resonator with the annular slot in the external cylindrical conductors is the radiating element of the antenna. Characteristic radiator cross sizes account 0.1-0.2 and the width of the slot is no more than 0.02 of a wave-length.
Yevdokymov, Anatoliy P. +1 more
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The vertically polarized antenna for broadcasting in the UHF range has been developed by the authors. The coaxial resonator with the annular slot in the external cylindrical conductors is the radiating element of the antenna. Characteristic radiator cross sizes account 0.1-0.2 and the width of the slot is no more than 0.02 of a wave-length.
Yevdokymov, Anatoliy P. +1 more
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A Novel UHF RFID Reader Antenna
Applied Mechanics and Materials, 2010In this paper, a new ultrahigh frequency circularly polarized microstrip antenna using in RFID reader is proposed. The proposed antenna has a simple structure, it has non-symmetrical rectangular corner truncated square patch, ground plane and a probe feed.
Xin Zhang, Lei Li
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Proceedings 2000 IEEE International Conference on Phased Array Systems and Technology (Cat. No.00TH8510), 2002
This UHF wideband antenna was developed for DARPA's synthetic aperture radar (SAR) applications. The small array could be mounted at the belly of an aircraft. The operating frequency covers a 4:1 bandwidth. The antenna including the feed and a contoured ground plane was designed to fit in a shallow radome (50 cm/spl times/100 cm/spl times/100 cm).
J.J. Lee +3 more
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This UHF wideband antenna was developed for DARPA's synthetic aperture radar (SAR) applications. The small array could be mounted at the belly of an aircraft. The operating frequency covers a 4:1 bandwidth. The antenna including the feed and a contoured ground plane was designed to fit in a shallow radome (50 cm/spl times/100 cm/spl times/100 cm).
J.J. Lee +3 more
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Ultrawideband VHF/UHF dipole array antenna
2010 IEEE International Symposium on Phased Array Systems and Technology, 2010A linearly-polarized ultrawideband dipole array antenna has been developed for coverage in the VHF/UHF frequency range for communications or radar applications. The antenna design utilizes a horizontally polarized array of thick tubular dipole elements above a ground plane.
Alan J Fenn +4 more
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Quadrifilar Helix antenna for UHF RFID
2010 IEEE Antennas and Propagation Society International Symposium, 2010Radio Frequency Identification (RFID) technology is widely used for automatically identifying and tracking objects. Specifically Ultra High Frequency (UHF) (900 MHz) RFID technology is rapidly expanding because it offers the best tradeoffs between read range, cost, and size.
Garret I McKerricher, Jim S Wight
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UHF antenna complex with polarization adaptation
RadioengineeringFormulation of the problem. With the development of the telecommunications industry and the growth in the number of subscribers, there is a need to more efficiently use the microphone frequency resource and increase the capacity in the mid-frequency UHF network.
A.L. Buzov +4 more
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