Results 11 to 20 of about 22,648 (287)

UWB’s Big Leap: The Niche Tech Set to Disrupt IoT Connectivity [PDF]

open access: yesAnnals of Dunarea de Jos University. Fascicle I : Economics and Applied Informatics
With a history of over two centuries, ultra-wideband seems to be on the verge of influencing the IoT and revolutionizing how devices communicate with each other. Unlike other technologies, Ultra-Wideband does not seem to be the technology that will solve
Dan-Alex Ceausescu-Constantinescu   +1 more
doaj   +1 more source

Comparison and Improvement of 3D-Multilateration for Solving Simultaneous Localization of Drones and UWB Anchors

open access: yesApplied Sciences, 2023
Drone fleets have attracted a lot of attention from the research community in recent years. One of the biggest challenges in deploying such systems is localization.
Franck Malivert   +2 more
doaj   +1 more source

Characterization of an aperture-stacked patch antenna for ultra-wideband wearable radio systems

open access: yesJournal of Telecommunications and Information Technology, 2005
This paper presents, for the first time, the time-domain characteristics of an aperture-stacked patch antenna (ASPA) for ultra-wideband (UWB) wearable devices. The methodology of antennas characterization for UWB radio systems is also outlined.
Maciej Klemm, Gerhard Troester
doaj   +1 more source

Ultra-wideband and Polarization-Insensitive Perfect Absorber Using Multilayer Metamaterials, Lumped Resistors, and Strong Coupling Effects

open access: yesNanoscale Research Letters, 2018
We theoretically and experimentally proposed a new structure of ultra-wideband and thin perfect metamaterial absorber loaded with lumped resistances.
Si-Jia Li   +8 more
doaj   +1 more source

Robot vision ultra-wideband wireless sensor in non-cooperative industrial environments

open access: yesInternational Journal of Advanced Robotic Systems, 2018
In this article, the ultra-wideband technology for localization and tracking of the robot gripper (behind the obstacles) in industrial environments is presented.
Pavol Galajda   +6 more
doaj   +1 more source

Ultra-Wideband WDM Optical Network Optimization

open access: yesPhotonics, 2020
Ultra-wideband wavelength division multiplexed networks enable operators to use more effectively the bandwidth offered by a single fiber pair and thus make significant savings, both in operational and capital expenditures.
Stanisław Kozdrowski   +2 more
doaj   +1 more source

METHOD OF WIRELESS TRANSMISSION OF DIGITAL INFORMATION ON THE BASIS OF ULTRA-WIDE SIGNALS

open access: yesСучасні інформаційні системи, 2019
The subject of the study are the organization of wireless transmission of digital information based on ultra-wideband signals. The goal is the development of models and methods for organizing broadband wireless communications operating in difficult ...
Aleksandr Serkov   +2 more
doaj   +1 more source

Ultra-Wideband Terahertz Absorption Using Dielectric Circular Truncated Cones

open access: yesIEEE Photonics Journal, 2019
We numerically demonstrate an ultra-wideband terahertz absorber using dielectric circular truncated cones on a non-structured graphene layer supported by a dielectric spacer on a metal reflector in the bottom.
Longfang Ye   +5 more
doaj   +1 more source

Research on the variation law of coal electrical parameters under different temperatures and detection frequencies

open access: yesGong-kuang zidonghua, 2021
Most of the existing research on the influencing factors of coal electrical parameters are carried out under fixed frequency or low frequency and high temperature conditions.
ZHENG Xuezhao   +5 more
doaj   +1 more source

Ultra-Wideband Antennas

open access: yes, 2015
The focus of UWB antenna research activity has matured in recent years and currently mainly concentrates on applications such as biomedicine and security. Early UWB antenna designs were driven by the FCC allocation of spectrum in 2002 and focussed on obtaining wide impedance bandwidths with reasonable group delay characteristics.
Ammann, Max   +2 more
openaire   +3 more sources

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