Results 131 to 140 of about 72,244 (304)
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source
Design of a Broadband Blade Antenna
Defence Science JournalBlade antennas are preferred for use in airborne platforms because of their radiation pattern, wide bandwidth, and compact size. Essentially, blade antennas are a type of monopole antennas, which require a ground plane owing to their design. In avionics, the outer surface of the air platform serves as the ground plane for blade antennas.
null Burcu Güzel Bahar +2 more
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Enhanced Self‐Phase Modulation in Silicon Nitride Waveguides Integrated With 2D MoS2 Films
Advanced Materials Technologies, EarlyView.ABSTRACT On‐chip integration of 2D materials provides a promising route toward next‐generation integrated optical devices with performance beyond existing limits. Here, significantly enhanced spectral broadening induced by self‐phase modulation (SPM) is experimentally demonstrated in silicon nitride (Si3N4) waveguides integrated with 2D monolayer ...
Shahaz S. Hameed +15 more
wiley +1 more source
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
A Broadband Multimode Circularly Polarized Stacked Antenna With Pattern Diversity
IEEE AccessA broadband multimode circularly polarized (CP) stacked antenna with pattern diversity is proposed in this paper. The antenna consists of three layers, two substrates with annular-ring patches and a parasitic metal patch.
Yi Liu, Yanhua Cao, Ke Wang, Wei Hong
doaj +1 more source
A Compact Broadband Antenna with Dual-Resonance for Implantable Devices. [PDF]
Micromachines (Basel), 2019 Li R, Li B, Du G, Sun X, Sun H.
europepmc +1 more source
Adaptive Carbon Nanotube Patches for Versatile Electronic Textiles and Wind‐Harvesting Applications
Advanced Materials Technologies, EarlyView.An adhesion‐tunable electronic textile patch based on a carbon nanotube/paraffin composite is presented, enabling direct, adhesive‐free integration with fabrics. Pressure‐responsive bonding allows reversible or permanent attachment on demand.
Seokwon Joo +4 more
wiley +1 more source
Bandwidth-Enhanced Circularly Polarized All-Textile Wearable Antenna Using an LP-to-CP Metasurface
IEEE AccessIn this paper, a bandwidth-enhanced circularly polarized (CP) all-textile antenna integrated with a metasurface (MS) is presented for 5.85-GHz wireless body area network (WBAN) applications.
Tu Tuan Le, Yong-Deok Kim, Tae-Yeoul Yun
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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