Results 11 to 20 of about 7,278 (256)

Metal‐only ultra‐wideband reflectarray

open access: yesElectronics Letters, 2022
A metal‐only ultra‐wideband polarisation‐selective reflectarray element using the true time delay is proposed herein. The element affords a large bandwidth with a tuneable reflection phase.
Jia‐Wei Ren, Hong‐Jian Wang
doaj   +1 more source

A Compact Planar Ultra-Wideband Array Antenna

open access: yesInternational Journal of Antennas and Propagation, 2023
Ultra-wideband (UWB) antennas have recently gained prominence in communication, radar technology, and electronic warfare domains. The quick development of these antennas is due to the wide bandwidth requirements of pulse radar, ground penetrating radar ...
Junli Zhu   +3 more
doaj   +1 more source

Ultra-Wideband Teach and Repeat

open access: yesCoRR, 2022
Autonomously retracing a manually-taught path is desirable for many applications, and Teach and Repeat (T&R) algorithms present an approach that is suitable for long-range autonomy. In this paper, ultra-wideband (UWB) ranging-based T&R is proposed for vehicles with limited resources.
Mohammed Ayman Shalaby   +3 more
openaire   +2 more sources

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

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

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

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

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 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

Ultra‐wideband wireless communications [PDF]

open access: yesWireless Communications and Mobile Computing, 2003
AbstractUltra‐wideband (UWB) communication techniques have attracted a great interest in both academia and industry in the past few years for applications in short‐range wireless mobile systems. This is due to the potential advantages of UWB transmissions such as low power, high rate, immunity to multipath propagation, less complex transceiver hardware,
Weihua Zhuang, Xuemin Shen, Qi Bi
openaire   +1 more source

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