Results 31 to 40 of about 549,184 (227)

Double Loop Inductive Feed Patch Antenna Design for Antimetal UHF RFID Tag

open access: yesInternational Journal of Antennas and Propagation, 2019
Planar UHF RFID antimetal tag can be widely used for the metallic products or packages with metal material inside. A double loop inductive feed planar patch antenna is proposed for UHF RFID tag mounted on metallic objects.
Lingfei Mo, Chenyang Li
doaj   +1 more source

Flexible Magnetic Polymer Composite Substrate with Ba1.5Sr1.5Z Hexaferrite Particles of VHF/Low UHF Patch Antennas for UAVs and Medical Implant Devices

open access: yesMaterials, 2020
Our goal is to fabricate flexible magnetic polymer composites as antenna substrates for very high frequency (VHF)/low ultra high frequency (UHF) antennas for unmanned aerial vehicles (UAVs) and medical devices.
Sang-Eui Lee   +5 more
semanticscholar   +1 more source

The effect of soil and label attachment on the performance of RFID tags

open access: yesDianzi Jishu Yingyong, 2019
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
doaj   +1 more source

Identification of surgical instruments using UHF-RFID technology

open access: yesCurrent Directions in Biomedical Engineering, 2015
The paper presents research, development and advantage of Radio Frequency IDentification (RFID) technology based system for medical instrument management and safe usage. The system is developed for two scenarios.
Bourouah Mohamed   +5 more
doaj   +1 more source

3D Printed and Photonically Cured Graphene UHF RFID Tags on Textile, Wood, and Cardboard Substrates

open access: yesInternational Journal of Antennas and Propagation, 2017
This paper introduces 3D direct writing and microdispensing of graphene ultrahigh frequency (UHF) radio-frequency-identification (RFID) antennas on textile, wood, and cardboard substrates, subsequently cured either by conventional oven or photonically by
M. Akbari   +5 more
doaj   +1 more source

Using the zeroth order resonance of an inter‐digital capacitive unit‐cell to design antennas for passive UHF RFID tags

open access: yesElectronics Letters, 2021
Meander‐line and multi‐layer antennas have been used extensively to design compact UHF radio‐frequency identification (RFID) tags; however the overall size reduction of meander‐line antennas is limited by the amount of parasitic inductance that can be ...
Muhammad Mubeen Masud   +4 more
doaj   +1 more source

Frequency Range of UHF PD Measurements in Power Transformers

open access: yesEnergies, 2023
Although partial discharge (PD) measurement is a well-accepted technology to assess the quality of the insulation system of power transformers, there are still uncertainties about which frequency range PDs radiate and which frequency range should be ...
Stefan Tenbohlen   +9 more
doaj   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

open access: yesAdvanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha   +14 more
wiley   +1 more source

Systematic Benchmarking of a Noise‐Tolerant Conductive Hydrogel Electrode for Epidermal Bioelectronics

open access: yesAdvanced Science, EarlyView.
General schematic of the approach. Abstract Conventional Silver/Silver Chloride (Ag/AgCl) electrodes remain the clinical standard for electrophysiological monitoring but are hindered by poor skin conformity, mechanical rigidity, and signal degradation, particularly under motion or sweat.
Nazmi Alsaafeen   +11 more
wiley   +1 more source

Conformal Design of a High-Performance Antenna for Energy-Autonomous UWB Communication

open access: yesSensors, 2021
In view of the need for communication with distributed sensors/items, this paper presents the design of a single-port antenna with dual-mode operation, representing the front-end of a future generation tag acting as a position sensor, with identification
Shobit Agarwal   +3 more
doaj   +1 more source

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