Results 111 to 120 of about 11,483 (315)
Design of a novel dual: band planar inverted F - antenna for mobile radio applications
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2014 The design of a novel compact dual band PIFA (Planar Inverted F-Antenna) as an embedded antenna is reported in this paper for mobile radio applications.
N. Chattoraj +4 more
doaj
Advanced Engineering Materials, EarlyView.Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal +3 more
wiley +1 more source
Planar Near-Field Measurements of Low-Sidelobe Antennas
, 1994 The planar near-field measurement technique is a proven technology for measuring ordinary antennas operating in the microwave region. The development of very low-sidelobe antennas raises the question whether this technique can be used to accurately ...
Francis, M.H.; Newell, A.C.; Grimm, K.R.; Hoffman, J.; Schrank, H.E.
core +1 more source
Miniature transparent UWB antenna with tunable notch for green wireless applications [PDF]
, 2011 Copyright @ 2011 IEEEA miniature transparent UWB antenna with tunable notch that can be incorporated with a solar panel for harnessing solar energy has been proposed and presented.
AbuTarboush, HF +11 more
core +1 more source
Advanced Engineering Materials, EarlyView.Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati +11 more
wiley +1 more source
Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
Analisys of Conformal Antennas for Avionics Applications
, 2007 Conformal antennas might have an important impact on communication and navigation applications on aircraft, ships and other vehicles. This thesis work presents a general study on conformal antennas and their potential application on aircraft structures ...
Redondo Gonzalez, Maria del Carmen
core
Aplicación de las superficies de alta impedancia al diseño de antenas de hilo de bajo perfil [PDF]
, 2008 Las superficies de alta impedancia presentan propiedades únicas relacionadas con el control de la propagación de las ondas electromagnéticas, lo que las hace especialmente útiles para la implementación de un gran número de aplicaciones.
Tomeo Reyes, Inmaculada
core
Hybrid Isolator for Mutual-Coupling Reduction in Millimeter-Wave MIMO Antenna Systems
IEEE Access, 2019 A novel millimeter-wave (MMW) hybrid isolator is presented to reduce the mutual-coupling (MC) between two closely-spaced dielectric resonators (DR) antennas at 60 GHz.
Muath Al-Hasan +4 more
doaj +1 more source
Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions
Advanced Functional Materials, EarlyView.This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian +7 more
wiley +1 more source