Results 151 to 160 of about 1,717 (189)

Non-homogeneous perfectly matched layers (PML) for the analysis of planar radiating structures with TLM method

IEEE Antennas and Propagation Society International Symposium 1997. Digest, 2002
A perfectly matched layer (PML) technique is used to limit the computational domain that includes planar structures and which are analyzed with the transmission-line matrix (TLM) method. The approach uses a coupling algorithm between the TLM symmetrical condensed node (SCN) in the computational domain and a finite-difference time-domain (FDTD ...
N. Pena, M.M. Ney
openaire   +1 more source

Exponential discretization of the Perfectly Matched Layer (PML) absorbing boundary condition simulation in FD-TD 3D

Optik, 2002
Summary We present the discretized equations of the 12 PML (perfectly matched layer) in the three-dimensional case using the Cartesian geometry. These equations can be used in different fields where Maxwell equations need to be solved.
Francisco Pérez-Ocón, José Ramón Jiménez Cuesta, Antonio Manuel Pozo Molina   +2 more
openaire   +1 more source

A new look at the perfectly matched layer (PML) concept for the reflectionless absorption of electromagnetic waves

IEEE Microwave and Guided Wave Letters, 1995
The perfectly matched layer (PML) concept has been introduced recently by Berenger (1994) with the objective of developing an absorbing boundary condition for the finite difference time domain (FDTD) method. In its original formulation, the PML approach is based on the splitting of the field components into two sub-components which are weighted with ...
R. Mittra, U. Pekel
openaire   +1 more source

An application of the perfectly matched layer (PML) concept to the finite element method frequency domain analysis of scattering problems

IEEE Microwave and Guided Wave Letters, 1995
The Perfectly Matched Layer (PML) concept, introduced by Berenger with the aim of synthesizing an absorbing boundary condition (ABC) for the Finite Difference Time Domain (FDTD) method, was recently modified and extended to Finite Element Frequency Domain (FEFD) applications.
U. Pekel, R. Mittra
openaire   +1 more source

GT-PML: generalized theory of perfectly matched layers and its application to the reflectionless truncation of finite-difference time-domain grids

IEEE Transactions on Microwave Theory and Techniques, 1996
A new mathematical formulation is presented for the systematic development of perfectly matched layers from Maxwell's equations in properly constructed anisotropic media. The proposed formulation has an important advantage over the original Berenger's perfectly matched layer in that it can be implemented in the time domain without any splitting of the ...
L. Zhao, A.C. Cangellaris
openaire   +1 more source

A multiaxial perfectly matched layer (M-PML) for the long-time simulation of elastic wave propagation in the second-order equations

Journal of Applied Geophysics, 2014
Abstract In order to conquer the spurious reflections from the truncated edges and maintain the stability in the long-time simulation of elastic wave propagation, several perfectly matched layer (PML) methods have been proposed in the first-order (e.g., velocity–stress equations) and the second-order (e.g., energy equation with displacement unknown ...
Ping Ping, Yu Zhang, Yixian Xu
openaire   +1 more source

Mesh truncation in the finite‐element frequency‐domain method with a perfectly matched layer (PML) applied in conjunction with analytic and numerical absorbing boundary conditions

Microwave and Optical Technology Letters, 1995
AbstractThe perfectly matched layer (PML) concept, introduced by Berenger with the aim of synthesizing an absorbing boundary condition (ABC) for the finite‐difference‐time domain (FDTD) method, is modified and extended to finite‐element frequency‐domain (FEFD) applications.
Ü. Pekel, R. Mittra
openaire   +1 more source

The limitations of the perfectly matched layers based on E–H fields for arbitrary anisotropic media—Reply to “Comment on ‘On the Matching Conditions of Different PML Schemes Applied to Multilayer Isotropic Dielectric Media’”

Microwave and Optical Technology Letters, 2001
AbstractThe aim of this communication is to correct potential misunderstandings about the PMLs (which are called the MIPMLs) based on D–H (E–B or D–B) fields. In fact, the motivation for developing the MIPMLs is to establish accurate and efficient PML absorbers for general anisotropic media.
openaire   +1 more source

Perfectly Matched Layer (PML) for Finite Difference Time Domain (FDTD) Computations in Piezoelectric Crystals

2018
Master of Applied Science (MASc)
openaire   +1 more source

Risk of acute myocardial infarction and ischaemic stroke following COVID-19 in Sweden: a self-controlled case series and matched cohort study

Lancet, The, 2021
Conor Patrick Farrington, Krister Lindmark, Anne-Marie Fors Connolly   +2 more
exaly