Results 31 to 40 of about 107 (102)

Stability and conservation properties of transient field simulations using FIT [PDF]

open access: yesAdvances in Radio Science, 2003
Time domain simulations for high-frequency applications are widely dominated by the leapfrog timeintegration scheme. Especially in combination with the spatial discretization approach of the Finite Integration Technique (FIT) it leads to a highly ...
R. Schuhmann, T. Weiland
doaj  

Parallelization of Faber Polynomial Based Propagators for Laser Applications

open access: yesInternational Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Volume 38, Issue 4, July/August 2025.
ABSTRACT In order to simulate a laser system, the evaluation of a complex semilinear master equation is needed, including the description of the wave propagation by Maxwell's equations and appropriate rate equations. The denser the spatial discretization, the slower the computation time of the time‐dependent propagator.
Wladimir Plotnikov, Dirk Schulz
wiley   +1 more source

Autoformer‐Driven Convolutional Perfectly Matched Layer for 2D HIE‐FDTD Method

open access: yesIET Microwaves, Antennas &Propagation, Volume 19, Issue 1, January/December 2025.
The Autoformer neural network is introduced to replace the conventional multi‐layer CPML structure. This method markedly improves computational efficiency while maintaining excellent wave absorption performance. ABSTRACT An innovative deep‐learning driven convolutional perfectly matched layer (CPML) integrated into the hybrid implicit‐explicit finite ...
Yexin Li   +4 more
wiley   +1 more source

Modeling Human Body Using Four‐Pole Debye Model in Piecewise Linear Recursive Convolution FDTD Method for the SAR Calculation in the Case of Vehicular Antenna

open access: yesInternational Journal of Antennas and Propagation, Volume 2018, Issue 1, 2018., 2018
We propose an efficient finite difference time domain (FDTD) method based on the piecewise linear recursive convolution (PLRC) technique to evaluate the human body exposure to electromagnetic (EM) radiation. The source of radiation considered in this study is a high‐power antenna, mounted on a military vehicle, covering a broad band of frequency (100 ...
Ammar Guellab, Qun Wu, Rodolfo Araneo
wiley   +1 more source

A three‐point compact LOD‐FDTD method for solving the 2D scalar wave equation

open access: yesMicrowave and Optical Technology Letters, Volume 66, Issue 5, May 2024.
Abstract This letter introduces an unconditionally stable finite‐difference time‐domain (FDTD) method, based on the locally one‐dimensional (LOD) technique, for the solution of the two‐dimensional scalar wave equation (WE) in homogeneous media. The second spatial derivatives in the WE are discretized by using a three‐point compact (implicit) finite ...
José A. Pereda, Ana Grande
wiley   +1 more source

An Unconditionally Stable Cylindrical FDTD Method to Analyze the EM Ground Wave Propagation

open access: yesInternational Journal of Antennas and Propagation, Volume 2018, Issue 1, 2018., 2018
We extended the unconditionally stable associated Hermite (AH) FDTD method to the cylindrical coordinate system for analyzing the electromagnetic (EM) ground wave propagation. With AH domain differentiate operator technology and paralleling‐in‐order solution scheme, the cylindrical time‐domain Maxwell equations with complex frequency shifted perfectly ...
Zheng-Yu Huang   +4 more
wiley   +1 more source

Extended ADI‐FDTD for anisotropic magnetised graphene sheets

open access: yesElectronics Letters, 2019
The unconditionally stable alternating‐direction‐implicit finite‐difference time‐domain (ADI‐FDTD) method is extended for modelling anisotropic magnetised graphene sheets. In contrast to the conventional method for isotropic media, two additional sub‐stepping calculations are applied to incorporate anisotropic medium properties.
Jian‐Yun Gao   +2 more
openaire   +1 more source

Design and Numerical Analysis of a Graphene-Coated SPR Biosensor for Rapid Detection of the Novel Coronavirus. [PDF]

open access: yesSensors (Basel), 2021
Akib TBA   +7 more
europepmc   +1 more source

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