Results 101 to 110 of about 1,413,233 (284)

True-Time-Delay Metasurface Assisted Broadband and Planarized Resonant Cavity Antenna

open access: yesIEEE Open Journal of Antennas and Propagation
Resonant cavity antennas (RCAs) produce reasonably high gains (15-20 dBi) with thin form factors, and find strong applications in wireless communication.
Tayyab A. Khan, Alex M. H. Wong
doaj   +1 more source

Low‐Pressure Plasma‐Based Wrinkling of PDMS and Machine Learning‐Driven Property Engineering

open access: yesAdvanced Materials Technologies, EarlyView.
Wrinkled surfaces are well‐suited for controlled surface deformations in the µm range. The key challenge is the relation between the resulting wrinkle features and the necessary process conditions. Machine learning techniques have solved the prediction and inverse design problems for various preparation conditions, opening a precisely controlled ...
Fabian Kopsch   +7 more
wiley   +1 more source

Substrate Integrated Waveguide Leaky-Wave Antenna Conforming to Conical Shape Surface

open access: yesInternational Journal of Antennas and Propagation, 2015
A conical conformal leaky-wave antenna based on substrate integrated waveguide (SIW) technology is proposed and demonstrated in this paper. This antenna conforms to a conical shape surface with the angle of 40°.
W. N. Huang, Y. J. Cheng, H. Deng
doaj   +1 more source

On‐Chip Photonic Neural Network Architectures

open access: yesAdvanced Optical Materials, EarlyView.
This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong   +7 more
wiley   +1 more source

Slow‐Wave HMSIW‐SSPP Leaky‐Wave Antenna With Phase‐Shift Asymmetric Coupling for Continuous Beam Scanning

open access: yesIET Microwaves, Antennas & Propagation
A compact leaky‐wave antenna (LWA) with innovative phase‐shift asymmetric coupling for continuous beam scanning is presented. The antenna utilises a slow‐wave half‐mode substrate integrated waveguide with spoof surface plasmon polaritons (SW‐HMSIW‐SSPP ...
Yiming Zhang, Yuxi Liu, Sailing He
doaj   +1 more source

Analysis and Design of Planar Surface Wave Lenses and Application to Leaky-Wave Antennas

open access: yesIEEE Open Journal of Antennas and Propagation
Planar metasurface lens structures based on microstrip technology, optimized to control the propagation of surface waves (SWs), are presented. Two different lenses are studied, i.e., a converging or plane-wave-like lens and a diverging lens.
Maksim V. Kuznetcov   +4 more
doaj   +1 more source

Broadside-radiating leaky-wave antennas obtained by inverse design

open access: yes
In this work, we employ an automated deterministic method for the synthesis of metasurfaces to the design of end-fed leaky-wave antennas that radiate at broadside without suffering from the gain loss and input mismatch due to the open stopband phenomenon.
Vecchi,Giuseppe   +4 more
core  

Molecular Appendix Adjusted Architectural Propagations of Red‐Light Controlled Macroscopic Photoactuating Performances

open access: yesAdvanced Robotics Research, EarlyView.
Amphiphilic chloroazobenzenes, bearing different amino acids as end groups alanine, phenylalanine, and valine, exhibit excellent photoisomerizations. Varying structures of three amino acid groups participate in supramolecular formations and therefore photoinduced morphological transformations via adjusting intermolecular interactions. These interaction
Shuangshuang Meng   +3 more
wiley   +1 more source

Rectilinear leaky-wave antennas with broad beam patterns using hybrid printed-circuit waveguides

open access: yes, 2011
A theoretical study on the design of broadbeam leaky-wave antennas (LWAs) of uniform type and rectilinear geometry is presented. A new broadbeam LWA structure based on the hybrid printed-circuit waveguide is proposed, which allows for the necessary ...
Weily, AR   +5 more
core   +1 more source

Backpropagation Through Soft Body: Investigating Information Processing in Brain–Body Coupling Systems

open access: yesAdvanced Robotics Research, EarlyView.
This study explores how information processing is distributed between brains and bodies through a codesign approach. Using the “backpropagation through soft body” framework, brain–body coupling agents are developed and analyzed across several tasks in which output is generated through the agents’ physical dynamics.
Hiroki Tomioka   +3 more
wiley   +1 more source

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