finite-difference time-domain grid
PubMedCentral-PMC5741097.pdf
... Time domain finite difference simulations are used extensively to simulate wave ...discrete domain with a grid spacing that is typically on the order of a tenth of a ...discrete ...
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B 2-Spline Interpolation Technique for Overset Grid Generation and Finite-Difference Time-Domain Method
... Overset Grid Generation and Finite-Difference Time-Domain (OGG-FDTD) method with bilinear interpolation technique was used to determine the characteristics of an object ...
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Rigorous analysis of numerical methods: a comparative study
... of finite difference equations, thus showing the discretisation of space and time (Yee ...of time-varying media and also formed the basis of the Finite Difference Time ...
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Understanding the Finite-Difference Time-Domain Method. John B. Schneider
... the grid. In this particular case, by the time the reflected field reaches the left end of the grid, the source function has essentially gone to zero and nothing is going to change ...this ...
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Development Of Finite-Difference Time-Domain (FDTD)/ Periodic Boundary Condition (PBC) Software For Modeling Microwave Absorber Material At Ku Band Frequency
... In FDTD technique, the problem space divided into small grid that called Yee cells that form a cube like segment. This technique that employs is the second- order central difference formula that represented ...
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Finite-Difference Time-Domain Analysis of Periodic Anisotropic Media
... computation time and memory limit ...different grid cells causes time-delay or -advance which makes the periodic boundary con- dition complex to solve in the time ...
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Sub-Nanosecond Electromagnetic-Micromagnetic Dynamic Simulations Using the Finite-Difference Time-Domain Method
... The extended length of the magnetic prism in the z -direction in Fig. 3 compared to its cross-section produces strong shape anisotropy and therefore saturates the magnetisation along the z -axis. This means that the ...
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An efficient finite difference time domain algorithm for band structure calculations of Phononic crystal
... Now, finite difference method may be used to discretize the displacement-based ...based finite difference time domain (DBFDTD), is given in the ...interfacial grid points ...
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Finite element time domain method with a unique coupled mesh system for electromagnatics and photonics
... The finite difference time domain (FDTD) method is a popular technique, being used suc- cessfully to analyse the electromagnetic properties of many structures, including a range of optical or ...
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Finite-Difference Time-Domain Methods for Electromagnetic Problems Involving Biological Bodies
... Yee grid is implemented on a non-uniform mesh, then the central differences are perturbed, and instead of being second-order accurate approximations, they are only first-order accurate ...
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Analysis on Research and Education for Electromagnetic-Applied Subjects with Finite Difference Time Domain Theory
... Finite-Difference Time-Domain (FDTD) method is a recognized practice for the investigation of quantum devices in semiconductor technology for research purposes ...spatial grid size and ...
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Source excitation strategies for obtaining impulse responses in finite difference time domain room acoustics simulation
... source grid point is determined by the driving excitation function alone, ideally coupling the signal into the grid, making them the simplest and easiest to ...underlying grid function, and for ...
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Waveguide Simulation Using the High-Order Symplectic Finite-Difference Time-Domain Scheme
... The SFDTD(3,4) scheme, which is explicit, non-dissipate, and high- order-accurate, has been introduced to simulate the three-dimensional waveguide problems. A variety of techniques involving boundary treatment, source ...
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A higher order perfectly matched layer formulation for finite-difference time-domain seismic wave modeling
... absorption, particularly for evanescent waves. We also discov- ered that the extra degrees of freedom associated with the higher order PML required careful optimization if enhanced absorption was to be achieved. ...
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The finite difference time domain method for computational electromagnetics
... text3 = ['In this one dimensional FDTD demonstration, the source frequency is set to 1GHz. '; 'Nonpermeable media is choosen. In this case, the permeability is the free-space '; 'permeability and the equivalent magnetic ...
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Modeling and Analysis of Printed Antenna Using Finite Difference Time Domain Algorithm
... Finite-difference time-domain (FDTD) is a popular computational electrodynamics modeling ...a time-domain method, solutions can cover a wide frequency range with a single ...
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Generalized Alternating Direction Implicit Finite Difference Time Domain Method in Curvilinear Coordinate System
... In order to compare the accuracy of the ADI-NFDTD with the conventional NFDTD algorithm, the resonant frequencies are calculated using the Fast Fourier Trans- formation (FFT) and are compared with the analytical results. ...
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Comparison of Time-Domain Finite-Difference, Finite-Integration, and Integral-Equation Methods for Dipole Radiation in Half-Space Environments
... computational domain must be discretised which can require extensive computational ...computational domain, and thus larger and more complex scenarios can be ...
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Numerical Simulation of Fragment-Type Antenna by Using Finite Difference Time Domain (FDTD)
... is performed for 10000 time steps. Fig. 5(a) shows a fragment-type antenna generated randomly. The prototype of this design is fabricated as shown in Fig. 5(b), and the simulated and measured results are ...
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A time domain approach to power integrity for printed circuit boards
... frequency domain solutions, a time domain solution captures the response over the bandwidth of the stimulus waveform in a single run and can be more efficient for the large bandwidths resulting from ...
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