Results 51 to 60 of about 24,215 (336)
Circularly polarized dielectric resonator antenna excited by a conformal wire [PDF]
, 2008 A conformal spiral wire has been used to feed a dielectric resonator antenna to obtain a circular polarization. The parameters of the spiral have been optimized numerically so that minimum axial ratio (AR) and return losses are achieved.
Khamas, S.K.
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Advanced Functional Materials, EarlyView.This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri +6 more
wiley +1 more source
T-Shaped Compact Dielectric Resonator Antenna for UWB Application
Advanced Electromagnetics, 2019 In this article, a novel T-shaped compact dielectric resonator antenna for ultra-wideband (UWB) application is presented and studied. The proposed DRA structure consists of T-shaped dielectric resonator fed by stepped microstrip monopole printed antenna,
A. Zitouni, N. Boukli-Hacene
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Antenna on microstrip line with orthogonally placed dielectric resonator [PDF]
, 2012 Single-element antenna that uses microstrip line as a feeder and cylindrical dielectric resonator orthogonally oriented relative to the line as a radiating element has been investigated.
Trubarov, Igor V.
core
Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production
Advanced Functional Materials, EarlyView.Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen +4 more
wiley +1 more source
Thermally tunable slot-coupled dielectric resonator antenna
AIP Advances, 2017 A thermally tunable slot-coupled dielectric resonator antenna (DRA) has been designed and prepared by placing a thermosensitive ceramic resonator onto the slot.
Ke Bi +7 more
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A singly fed rectangular dielectric resonator antenna with a wideband circular polarization [PDF]
, 2010 A rectangular dielectric resonator antenna (DRA) that is excited using an outer-fed square spiral strip has been studied theoretically and experimentally. Utilizing such excitation has provided a circular polarization over a broad bandwidth of ${sim 14}%$
Khamas, S.K., Sulaiman, M.I.
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Double Helical Plasmonic Antennas
Advanced Functional Materials, EarlyView.Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin +7 more
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Advanced Functional Materials, EarlyView.The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich +6 more
wiley +1 more source
A wideband trapezoidal dielectric resonator antenna with circular polarization [PDF]
, 2012 A new design of a circularly-polarized (CP) trapezoidal dielectric resonator antenna (DRA) for wideband wireless application is presented. A single-layered feed is used to excite the trapezoidal shaped dielectric resonator to increase resonant frequency ...
Abdul Rahim, Sharul Kamal +2 more
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