Results 21 to 30 of about 1,247 (259)
Nature Communications, 2019 There is significant interest in providing real-world applications for metamaterials. Here, the authors design an Advanced Short Backfire Antenna, augmented with anisotropic metamaterial surfaces to achieve high aperture efficiency across two frequency ...
J. Daniel Binion +4 more
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Electromagnetic Integral Equations: Insights in Conditioning and Preconditioning
IEEE Open Journal of Antennas and Propagation, 2021 Integral equation formulations are a competitive strategy in computational electromagnetics but, lamentably, are often plagued by ill-conditioning and by related numerical instabilities that can jeopardize their effectiveness in several real case ...
Simon B. Adrian +4 more
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Products of the laboratory of computational electromagnetics: from mathematical models to antenna-feeder devices [PDF]
Радиофизика и электроника, 2019 Subject and Purpose. The study of various kinds of microwave devices and the description of the most interesting designs. Methods and Methodology. The fast numerical-analytical methods are used in the study of devices.
A. A. Kirilenko +3 more
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Trends in Adaptive Array Processing
International Journal of Antennas and Propagation, 2012 Enormous progress has been made during the past five decades in the area of adaptive array processing. Increased computational power has resulted in many practical applications of optimum algorithms.
Hema Singh, Rakesh Mohan Jha
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Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
A Novel Model of Electromechanical Contactors for Predicting Dynamic Characteristics
Energies, 2021 To ensure the reliability of power supply, a dual power supply structure appears in the power distribution system. Power supply switching is a complex physical process. This paper presents a novel model of electromechanical contactors.
Gongrun Wang +5 more
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A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy
Advanced Engineering Materials, EarlyView.A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle +5 more
wiley +1 more source
The shape synthesis of 3D electrically‐small conducting surface antennas
Electronics Letters, 2021 The application of a shape synthesis process for electrically‐small three‐dimensional (3D) conducting surface antennas is described. A script (shaping manager) links a computational electromagnetics engine and genetic optimisation algorithm, and ...
A. Alakhras, D.A. McNamara
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Advanced Functional Materials, EarlyView.Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner +14 more
wiley +1 more source
Efficient Dispersive GSTC-FDTD Algorithm Using the Drude Dispersion Model
IEEE Access, 2022 Metasurfaces are artificial sheets with sub-wavelength thickness and they are two-dimensional equivalents of metamaterials. The generalized sheet transition conditions (GSTCs) have been recently proposed for electromagnetic analysis of the metasurfaces ...
Sangeun Jang +2 more
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