Results 91 to 100 of about 776,777 (280)
Development of Ultra-Wideband Antennas [PDF]
The ultra-wideband (UWB) spectrum available for commercial applications has offered us an opportunity to achieve high-speed wireless communications and high-accuracy location applications. As one of key research areas in UWB technology, a lot of innovative broadband and miniaturization techniques for UWB antennas have been greatly invented and ...
openaire +1 more source
Compact Electromagnetic Bandgap Structures for Notch Band in Ultra-Wideband Applications
This paper introduces a novel approach to create notch band filters in the front-end of ultra-wideband (UWB) communication systems based on electromagnetic bandgap (EBG) structures.
Jan Sykulski +3 more
core +1 more source
Chemical vapor deposition produces large‐grain, phase‐pure CsPbBr3 films (grains up to 35 µm) with Drude‐like terahertz photoconductivity and twofold higher carrier mobility versus spin‐coated references. These microstructural advances translate into photodetectors with a detectivity of 8.4 × 1012 Jones, dark current below 1 pA cm−2, X‐ray sensitivity ...
Roel Vanden Brande +14 more
wiley +1 more source
We propose a switched beam‐forming antenna that satisfies not only ultra‐wideband characteristics but also beam‐forming in the WLAN frequency band using an ultra‐wideband antenna and passive parasitic elements applying a broadband optimal reactance load ...
Jung‐Nam Lee +3 more
doaj +1 more source
Spatiotemporal coherent summation of Ultra-Wideband chaotic radio pulses. Experiment [PDF]
The purpose of this work is to experimentally prove the physical feasibility of coherent addition of chaotic signals (ultra-wideband chaotic radio pulses) in space and time.
Kuzmin, Lev Viktorovich +3 more
doaj +1 more source
Influence of Various Technologies on the Quality of Ultra-Wideband Antenna on a Polymeric Substrate. [PDF]
Lukacs P +3 more
europepmc +1 more source
Introduction to Ultra-Wideband Antennas
This paper presents an introduction to ultra-wideband (UWB) antennas, including a summary of key UWB antenna concepts, as well as system and network considerations, and fundamental limits for UWB antennas.
openaire +2 more sources
Efficient conversion and detection of short‐wave infrared (SWIR) photons are becoming increasingly important for emerging photonic and energy technologies. Here, we report an organic photothermoelectric device based on an open‐shell conjugated polymer that enables SWIR energy conversion and photon detection via the photothermoelectric effect.
Guan‐Lin Chen +5 more
wiley +1 more source
CPW-Fed Flexible Ultra-Wideband Antenna for IoT Applications. [PDF]
Kirtania SG +4 more
europepmc +1 more source
Transparent Topological Meta‐Diplexer via Tightly Confined Valley Surface States
An optically transparent topological metasurface supporting tightly confined valley surface states enables robust and flexible wave routing in an ultrathin platform. A compact transparent meta‐diplexer with spatially and spectrally separated channels is realized, while communication experiments verify high‐fidelity signal transmission, opening new ...
Sijie Li +5 more
wiley +1 more source

