Results 41 to 50 of about 776,777 (280)
Advanced Materials, EarlyView.A hierarchical flexible ceramic nanofiber membrane integrates a La‐stabilized ZrO2 scaffold with superhydrophobic UiO‐66‐NH2/CdS heterojunctions. The gas–liquid–solid interfacial architecture sustains vapor‐selective desalination, visible‐light charge separation, and rapid H2 extraction, enabling simultaneous freshwater production and photocatalytic ...
Pengfei Lin +9 more
wiley +1 more source
An ultra-wideband orthogonal-beam directional graphene-based antenna for THz wireless systems
Scientific Reports, 2022 In terahertz (THz) wireless systems, graphene shows a tremendous promise for the implementation of miniaturized and reconfigurable antennas due to its unique tunable property. This paper presents a wideband beam reconfigurable directional antenna for THz
Sasmita Dash +3 more
doaj +1 more source
Antenna Delay Calibration of UWB Nodes
IEEE Access, 2021 Impulse-radio ultra-wideband (IR-UWB) networks are gaining wide acceptance in short-to-medium range wireless sensing and positioning applications that require high accuracy. It is achieved generally via signal message exchange between ultra-wideband (UWB)
Shashi Shah +4 more
doaj +1 more source
Advanced Materials, EarlyView.Water harvesting, radiative cooling, and interfacial solar evaporation are fundamentally governed by coupled heat, mass, and light transport processes. These processes are mediated by pore architecture, including pore size, connectivity, and hierarchical organization.
Dejan J. Trajkovski +5 more
wiley +1 more source
Novel ultra-wideband microstrip meandered-loop antenna
Tongxin xuebao, 2005 A novel meandered-loop ultra-wideband antenna was proposed.The antenna was similar in configuration with a conventional wide-slot antenna,however,by employing meandered-loop structure,not only ultra-wideband performance but also compact size could be ...
LV Wen-jun, CHENG Chong-hu, ZHU Hong-bo
doaj +2 more sources
Wideband blade monopole antenna with sleeved coaxial feed [PDF]
, 2009 A wideband planar monopole antenna requiring a small ground plane is described. Numerical and measured results confirms the antenna has good radiation efficiency and stable omni-directional radiation patterns over an impedance bandwidth of 4.1:1 covering
Morrow, Ivor L. +7 more
core +1 more source
Advanced Materials, EarlyView.A plasmonic–photothermal–photocatalytic hybrid comprising Cu(II)‐grafted TiO2, yolk–shell Au@SiO2, and reduced graphene oxide sheets (CuT/AuSi‐GS) harvests full‐spectrum white light‐emitting diode (LED) light via complementary photocatalytic oxidation, localized surface‐plasmon‐resonance‐induced electric‐field enhancement, and photothermal acceleration.
Minhyung Lee +10 more
wiley +1 more source
Design and study of ultra-wideband folded loop antennas
Tongxin xuebao, 2010 Design of a novel ultra-wideband folded loop antenna was proposed.It was fed by coplanar waveguide and can be easily integrated with other microwave circuits.By introducing a pentagonal folded loop,the bandwidth of the an-tenna is improved twice than ...
LV Wen-jun, ZHU Hong-bo
doaj +2 more sources
Electrical, Control and Communication Engineering, 2020 A novel design of ultra-wideband CPW-fed compact monopole patch antenna is presented in the article. The size of the antenna is 22 × 18 × 1.6 mm and it operates well over an ultra-wideband frequency range 4.86–13.66 GHz (simulated) and 4.93–13.54 GHz ...
Dwivedi Ajay Kumar +4 more
doaj +1 more source
IEEE Access, 2023 This manuscript presents a triple-port ultra-wideband (UWB) multiple-input multiple-output (MIMO) antenna designed for wireless communication. The antenna employs automobile window film as a substrate, which is a cost-effective, easily accessible, and ...
Paitoon Rakluea +7 more
doaj +1 more source