Results 31 to 40 of about 3,481,136 (300)

Recent Trends in Computational Electromagnetics for Defence Applications

open access: yesDefence Science Journal, 2019
Innovations in material science, (nano) fabrication techniques, and availability of fast computers are rapidly changing the way we design and develop modern defence applications.
K. Sankaran
semanticscholar   +1 more source

A metamaterial-enabled design enhancing decades-old short backfire antenna technology for space applications

open access: yesNature 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
doaj   +1 more source

Electromagnetic Integral Equations: Insights in Conditioning and Preconditioning

open access: yesIEEE 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
doaj   +1 more source

Characteristic Mode Analysis applied to antennas [PDF]

open access: yesRevista Brasileira de Ensino de Física, 2020
This paper introduces the Characteristic Mode Analysis in the computation of electromagnetic resonant modes in conducting bodies. Canonical cases (thin wire and a rectangular plate) are analyzed, along with real-world complex structures, a mobile phone ...
Marcelo B. Perotoni   +2 more
doaj   +1 more source

Some Key Developments in Computational Electromagnetics and their Attribution

open access: yes, 2006
Key developments in computational electromagnetics are proposed. Historical highlights are summarized concentrating on the two main approaches of differential and integral methods.
Sykulski, J.K., Trowbridge, C.W.
core   +1 more source

Products of the laboratory of computational electromagnetics: from mathematical models to antenna-feeder devices [PDF]

open access: yesРадиофизика 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
doaj   +1 more source

Systems of Differential Algebraic Equations in Computational Electromagnetics [PDF]

open access: yes, 2018
Starting from space-discretisation of Maxwell’s equations, various classical formulations are proposed for the simulation of electromagnetic fields. They differ in the phenomena considered as well as in the variables chosen for discretisation.
I. C. Garcia   +3 more
semanticscholar   +1 more source

Trends in Adaptive Array Processing

open access: yesInternational 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
doaj   +1 more source

Three‐dimensional Antimony Sulfide Based Flat Optics

open access: yesAdvanced Functional Materials, EarlyView.
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang   +18 more
wiley   +1 more source

A Novel Model of Electromechanical Contactors for Predicting Dynamic Characteristics

open access: yesEnergies, 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
doaj   +1 more source

Home - About - Disclaimer - Privacy