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In this paper, we explore the accuracy limits of an energy conserved splitting finite difference time domain (EC-S-FDTD) method applied to the Maxwell equations which has recently been proposed to solve the Electromagnetic (EM) problem. The numerical dispersion properties of the EC-S-FDTD methods are investigated. The results of this analysis are useful for the application of the method, and for the...
In order to reduce the dispersion of the conventional HO-FDTD (2, 4) method, the axes-optimized method has been provided. This paper mainly discusses the optimization of the weight parameters based on the numerical dispersion equation. The numerical examples have been given to demonstrate the optimized HO-FDTD (2, 4) method. It has been found that the dispersion error can be eliminated in the axial...
In this paper, a conformal high-order finite difference time-domain (CHO-FDTD) scheme is present to deal with the dielectric curved objects. The general update equations of the CHO-FDTD have been derivated. The CHO-FDTD method, based on the effective dielectric constant EDC technique, is applied in scattering cases, and the conclusion are that the scheme provides the better accuracy than the HO-FDTD...
The SSE (streaming (single instruction multiple data) SIMD extensions) instruction set was used to accelerate the finite difference time domain (FDTD) method for the significant improvement on the simulation performance. The numerical results of the SSE acceleration on the multi-CPU workstation have demonstrated that we can obtain around 4 times speedup ratio comparing to FDTD without SSE.
With the rapid progress of electronic and information technology, body area network (BAN) has been widely used for biomedical monitoring systems using the human body as a transmission medium. In this paper, the effect of the type of arm models on electric field distribution and attenuation constant of on-body transmission have been investigated. In order to assess the sensitivities of the transmission...
In this paper, we summrize the new development of hardware-acceleration techniques and a parallel conformal Finite-Difference Time-Domain (FDTD) method in computational electromagnetics engineering. We investigate the performance of a parallel conformal FDTD method on different hardware platforms, such as Intel and AMD processors, with vector-arithmetic logic unit (VALU) acceleration, a regular PC...
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