Results 81 to 90 of about 3,456 (311)
Advanced Materials Technologies, EarlyView.ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel +4 more
wiley +1 more source
High Gain Dual Parasitic Patch Loaded Wideband Antenna for 28 GHz 5G Applications
, 2021 Wahaj Abbas Awan +2 more
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Advanced Materials Technologies, EarlyView.One‐dimensional C4N2H14PbBr4 is shown to have a quasi‐direct electronic band structure and strongly anisotropic transport with polarized broadband emission. A GW/Bethe–Salpeter excited‐state force formalism, supported by polarized Raman and temperature‐dependent photoluminescence, identifies low–frequency Pb–Br phonons that drive ultrafast exciton self‐
Rijan Karkee +7 more
wiley +1 more source
Ultra wideband patch antenna with a novel folded-patch technique
IET Microwaves, Antennas & Propagation, 2009 The authors present the results of a polygonal patch antenna for ultra-wideband applications covering a frequency band from 4.14 to 13.50 GHz. The fabricated antenna achieved a 10 dB impedance bandwidth in excess of 125 with an antenna size of 0.373lambda o times0.373lambda o times0.149lambda o at its centre frequency.
M. Naser-Moghadasi +3 more
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Advanced Materials Technologies, EarlyView.A MEMS‐integrated metamaterial filter enables continuous, low‐voltage spectral tuning in the long‐wavelength infrared (LWIR). The device employs extraordinary optical transmission in a dual suspended metasurface stack, where electrostatic actuation precisely controls the intermembrane air gap.
Oleg Bannik +6 more
wiley +1 more source
Geometry of wideband small-sized antenna: vertical patch antenna
Electronics Letters, 2003 A new geometry of antenna, referred to as the vertical patch antenna (VPA), which can occupy less space and yield wider bandwidth than traditional patch antennas, is described. A circular-VPA with radius 0.186λ0, is presented to have 10.7% bandwidth and 8 dBi gain. Stable and broadside patterns are maintained across the passband.
Chi Lun Mak, Kwai Man Luk, Kai Fong Lee
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Advanced Materials Technologies, EarlyView.A fully organic UV threshold dosimeter is developed by exploiting the oxygen‐sensitive room‐temperature phosphorescence of a purely organic emitter in a polymer matrix. Upon reaching a specific cumulative UV dose, photochemical oxygen depletion triggers a sharp, high‐contrast emission.
Tim Achenbach +3 more
wiley +1 more source
Wideband circularly polarised patch antenna with multi‐section λ/4 transmission lines [PDF]
, 2019 Qiong‐Sen Wu +3 more
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Patches of Dual Functions for Wideband MIMO Array Antenna with Linear or Circular Polarization Characteristics [PDF]
, 2021 Reza Zaker +3 more
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Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications
Advanced Materials Technologies, EarlyView.Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke +3 more
wiley +1 more source