Finite difference frequency Domain (FDFD) method
Electromagnetic Scattering Using GPU-Based Finite Difference Frequency Domain Method
... FDFD method is implemented on a ...gradient method (BICG) [16] is used to solve the sparse matrix for 2D and 3D scattering problems using the FDFD ...
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Graphics Processor Unit (GPU) Acceleration of Finite-Difference Frequency-Domain (Fdfd) Method
... FDFD method is presented in this contribution to speed-up the solution of electromagnetics ...efficient method of performing matrix- vector products for the linear system of FDFD equations is adapted from ...
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Computation of the Modes of Elliptic Waveguides with a Curvilinear 2D Frequency-Domain Finite-Difference Approach
... Aim of this work is to further improve the FDFD approach for elliptic waveguide sections to reach the effectiveness of the rectangular case. The main step is the use of an elliptic cylindrical coordinate system, both for ...
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Crack Detection Using a Hybrid Finite Difference Frequency Domain and Particle Swarm Optimization Techniques
... 2.2. The Procedure In this work, the FDFD method, for the first time, has been used to get the scattered field for a certain known crack (position, width, and depth) as the first step. The crack used is specified and ...
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Finite-Difference Frequency-Domain Algorithm for Modeling Electromagnetic Scattering from General Anisotropic Objects
... Finite-Difference Frequency-Domain Algorithm for Modeling Electromagnetic Scattering from General Anisotropic Objects Raymond ...Abstract—The finite-difference ...
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Breast Cancer Detection Using a Hybrid Finite Difference Frequency Domain and Particle Swarm Optimization Techniques
... that are used are 1000 Iterations. Fig. 4 shows the tumor positions in the breast model, near to the chest wall, near to the skin, in the center of the breast, and inside the glandular. In Figs. 2, 3 and 4, the malignant ...
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Finite-Difference-Frequency-Domain Simulation of Electrically Large Microwave Structures using PML and Internal Ports
... FDFD method, where a large system of equations needs to be solved, PML deteriorates numerical condition thus corrupting the convergence behavior of the iterative ...
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The finite difference time domain method for computational electromagnetics
... FEM is more suitable for low frequency of 50 Hz. It uses fewer elements than FDTD. FEM needs more preprocessing and postprocessing, as mentioned in section 1.2. 1.4.2 Comparison between FDTD and MOM FDTD permits ...
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Uncertainty Analyses in the Finite-Difference Time-Domain Method
... The MoM requires the same amount of computational mem- ory as the MCM. For a simulation with n uncertain input pa- rameters, the MoM requires n + 1 FDTD simulations. In the next section, the UA methods described earlier ...
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Research on the Complex Frequency-Shifted Perfectly Matched Layer Algorithm in the Finite Difference Time Domain Method
... 域有限差分法（ Finite Difference Time Domain Method, FDTD）。时域有限差分 法的离散方式是，在时间和空间上对电磁场的电场分量 E 和磁场分量 H 进行交 替取样，这样使得每一个电场分量 E（或磁场分量 H）周围都环绕着四个磁场分 量 H（或电场分量 E）。通过这种离散方式就可以把带有时间变量的麦克斯韦旋 ...
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Analysis of periodic structures using finite-difference time-domain method
... 126 the frequency-domain solutions for dispersive periodic structures. The new algorithm is much faster than HFSS, and it can be used to implement embedded circuit elements. The algorithms developed in this ...
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A Three Dimensional Finite Difference Time Domain Sub-Gridding Method
... this method for solving Maxwell’s equations stems from several of its characteristics ...the method of moments or the finite element method, the FDTD method solves in the time ...this ...
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Improvement of Computational Performance of Implicit Finite Difference Time Domain Method
... Implicit Finite Difference Time Domain Method Hasan ...3D frequency dependent Crank Nicolson finite difference time domain (FD-CN-FDTD) method are extensively studied ...stable ...
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CiteSeerX — VISUALIZATION OF SOUND REFLECTION AND DIFFRACTION BY THE FINITE DIFFERENCE TIME DOMAIN METHOD
... CONCLUSIONS In this report, some examples of sound field visualization based on the numerical calculation using the FDTD method have been presented. These results can be demonstrated effectively by ...
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Modelling Curved and Non-Aligned Surfaces using the Finite-Difference Time-Domain Method
... new method allows for the modelling of material sheets that are thinner than the cell size of the FDTD grid, this means that a much coarser mesh can be used compared to bulk conformal methods significantly ...
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CiteSeerX — A Radial-Dependent Dispersive Finite-Difference Time-Domain Method for the Evaluation of Electromagnetic Cloaks
... 0 0 Fig. 8. A narrowband Gaussian pulse propagating from the left to the right side of the cloak. The pulse has a a bandwidth between 1.65GHz to 2.35GHz and a central frequency of 2GHz. The snapshot is taken when ...
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Teaching and Learning Electromagnetic Simulation by Means of a Two Dimensional Finite Difference Time Domain Method
... the method of moments (MoM) is based on a solid mathematical model that warranties results close to the circuit real behaviors; however, for a non graduated student or for a novice practitioner, the waiting for ...
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Generalized Alternating Direction Implicit Finite Difference Time Domain Method in Curvilinear Coordinate System
... The radius of the cavity is 0.15 m. The cavity is filled with vacuum of relative permittivity ε r = 1. The outer material is copper, with relative permittivity ε r = 1 and conductivity σ = 5.8 × 10 7 S/m. The whole ...
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Sub-Nanosecond Electromagnetic-Micromagnetic Dynamic Simulations Using the Finite-Difference Time-Domain Method
... FDTD method. The first approach involved using a frequency dependent tensor permeability that relates the magnetic flux density to the field strength in Maxwell’s equations [2, ...a frequency ...
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Analysis on Photo Emission and Absorbing Spectrum on GaN Sample by Finite Difference Time Domain Method
... We could easily find that the emission spectrum goes up after the cumulative distribution function of 600 and reaches at the full percent for 750. For low energies nevertheless there is no suitable electronic transitions ...
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