Results 1 to 10 of about 107 (102)

3D complex envelope leapfrog ADI‐FDTD algorithm [PDF]

open access: yesElectronics Letters, 2021
This paper presents a 3D complex envelope leapfrog alternating‐direction‐implicit finite‐difference time‐domain method. Compared with the previous work, the proposed method costs less computation runtime and memory while maintaining similar accuracy. The
Yunyang Dong, Jianyi Zhou
doaj   +3 more sources

Comprehensive Numerical Analysis of Finite Difference Time Domain Methods for Improving Optical Waveguide Sensor Accuracy [PDF]

open access: yesSensors, 2016
This paper discusses numerical analysis methods for different geometrical features that have limited interval values for typically used sensor wavelengths.
M. Mosleh E. Abu Samak   +3 more
doaj   +2 more sources

From Time-Collocated to Leapfrog Fundamental Schemes for ADI and CDI FDTD Methods

open access: yesAxioms, 2022
The leapfrog schemes have been developed for unconditionally stable alternating-direction implicit (ADI) finite-difference time-domain (FDTD) method, and recently the complying-divergence implicit (CDI) FDTD method.
Eng Leong Tan
doaj   +1 more source

Partially Implicit FDTD (PI-FDTD) Method for Lower Dispersion and Anisotropic Errors

open access: yesIEEE Access, 2022
A new partially implicit 3D FDTD (PI-FDTD) method is introduced. The method is not unconditionally stable, but its stability limit is 6 times higher than that of the classic Yee’s FDTD method.
Mehmet Kusaf, Abdullah Yucel Oztoprak
doaj   +1 more source

Modeling GPR Wave Propagation in Complex Underground Structures Using Conformal ADI-FDTD Algorithm

open access: yesApplied Sciences, 2022
Ground Penetrating Radar (GPR) is a shallow geophysical method for detecting and locating subsurface targets. The GPR image echo characteristics of complex underground structures can be obtained by carrying out GPR forward modeling research.
Yinping Li   +4 more
doaj   +1 more source

High-Accurate Non-Uniform Grids for System-Combined ADI-FDTD Method in Near-Field Scattering With Proper CFL Factor

open access: yesIEEE Access, 2021
In this paper, a high-accurate technique with non-uniform grids is introduced into a system-combined alternative-direction-implicit finite-difference time-domain (SC-ADI-FDTD) algorithm, and then successfully used to analyze electromagnetic propagations.
Naixing Feng   +4 more
doaj   +1 more source

ADI-FDTD Modeling of Tellegen Media [PDF]

open access: yesIEEE Antennas and Wireless Propagation Letters, 2014
This work was supported by the Spanish Ministerio de Economía y Competitividad under Projects TEC2010-21496-C03-01 and CONSOLIDER CSD2008-00066 and the subprogram Ramón y Cajal RYC-2010-06922.
Grande Sáez, Ana María   +1 more
openaire   +2 more sources

Implementation of the Hybrid ADI-FDTD Scheme to Maxwell Equation for Mathematical Modeling of Breast Tumor

open access: yesJournal of Mathematical Sciences and Modelling, 2023
Breast cancer is the most common cancer in women, and non-destructive detection of the tumor is vital. The interaction of electromagnetic waves with breast tissue and the behavior of waves after interaction are used to model tumor detection ...
Ümmü Şahin Şener
doaj   +1 more source

Improved ADI Iterative Algorithm With Gauss-Seidel Ideology for Efficient WLP-FDTD Method in 3-D Cylindrical Coordinate System

open access: yesIEEE Access, 2023
An improved Alternating-Direction-Implicit iterative algorithm with Gauss-Seidel ideology for efficient weighted-Laguerre-polynomial finite-difference time-domain method is proposed in 3-D cylindrical coordinate system.
Da-Wei Zhu   +4 more
doaj   +1 more source

EM Pulse Propagation Modeling for Tunnels by Three-Dimensional ADI-TDPE Method

open access: yesIEEE Access, 2020
The three-dimensional time domain parabolic equation (3D-TDPE) is derived to simulate the EM pulse propagation in straight, curved tunnels. Then the finite differential (FD) method is applied to accurately and flexibly describe the fine structures in the
Yu Sheng Li   +3 more
doaj   +1 more source

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