Results 81 to 90 of about 7,494 (288)
Advanced Materials, EarlyView.Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief +12 more
wiley +1 more source
Perfect Anomalous Reflection with a Binary Huygens' Metasurface
, 2018 In this paper we propose a new metasurface that is able to reflect a known incoming electromagnetic wave into an arbitrary direction, with perfect power efficiency.
Eleftheriades, George V. +1 more
core +2 more sources
n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz
Advanced Materials, EarlyView.Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis +19 more
wiley +1 more source
The Leaky-Wave Perspective for Array-Fed Fabry–Perot Cavity and Bull’s-Eye Antennas
Applied SciencesTwo-dimensional leaky-wave antennas (LWAs) are a class of planar, traveling-wave radiators with attractive features of a low profile, ease of feeding, frequency reconfigurability of the radiation pattern, and polarization agility.
Mikhail Madji +5 more
doaj +1 more source
Compact Circularly Polarized Patch Antenna Using a Composite Right/Left-Handed Transmission Line Unit-Cell [PDF]
, 2013 A compact circularly polarized (CP) patch antenna using a composite right/left-handed (CRLH) transmission line (TL) unit-cell is proposed. The CRLH TL unit-cell includes a complementary split ring resonator (CSRR) for shunt inductance and a gap loaded ...
Gao, X. J. +4 more
core +1 more source
Characterization of Power Absorption Response of Periodic 3D Structures to Partially Coherent Fields
, 2016 In many applications of absorbing structures it is important to understand their spatial response to incident fields, for example in thermal solar panels, bolometric imaging and controlling radiative heat transfer.
Craeye, Christophe +3 more
core +1 more source
Advanced Materials, EarlyView.This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi +3 more
wiley +1 more source
Design of a LP, RHCP and LHCP Polarization-Reconfigurable Holographic Antenna
IEEE Access, 2019 In this paper, the feasibility of utilizing the microwave hologram to realize the high-gain radiation with polarization agility performance is investigated, and an effective method to design the polarization-reconfigurable holographic antenna is ...
Mei Li, Ming-chun Tang, Shaoqiu Xiao
doaj +1 more source
A New Look at Azimuthal Wave Propagation Constants of an n-Layered Dielectric Coated PEC Cylinder [PDF]
, 2013 A method for determining the azimuthal wave propagation constants supported by an n-layered dielectric coated PEC cylinder is presented. The method, based on a Green\u27s function described in , is designed to optimally handle layered cylinders where the
Collins, Peter J. +2 more
core +1 more source
Pencil-Beam Single-point-fed Dirac Leaky-Wave Antenna on a Transmission-Line Grid
, 2016 Leaky-wave antennas (LWAs) are widely used as single-point-fed linear antenna arrays. The extension of LWAs to 2D implies that they can be used as single-point-fed 2D antenna arrays without requiring a complex feeding network.
Dorrah, Ayman H. +1 more
core +1 more source