volume | PIER Journals

2007-05-03

Study on Shielding Effectiveness of Metallic Cavities with Apertures by Combining Parallel FDTD Method with Windowing Technique

Ji-Zhao Lei,

Dr. Ji-Zhao Lei

Xidian University

China

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Chang-Hong Liang,

Professor Chang-Hong Liang

School of Electronics Engineering

Xidian University

China

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Yu Zhang

Dr. Yu Zhang

School of Electronics Engineering

Xidian University

China

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Progress In Electromagnetics Research, Vol. 74, 85-112, 2007

doi:10.2528/PIER07041905

Abstract

A novel hybrid method combining 3D Parallel Finite- Difference Time-Domain (FDTD) method with Windowing technique through a new Controlling factor to study the Shielding Effectiveness (SE) of metallic cavities with apertures is firstly presented in this paper. The simulating time when the sampling electric field in cavity converges can be reduced greatly by the MPI-based Parallel FDTD method with the optimum virtual topology for the scattering problem. And then the sampling electric field in cavity is dealt with Windowing technique,whic h can further reduce the total time steps that Parallel FDTD method needs. The numerical results show that combination of Parallel FDTD with Windowing technique can enhance the simulating efficiency greatly. Finally,the SE of metallic cavities with different configurations is studied by the hybrid method and some useful conclusions to the practical electromagnetic shielding problems are obtained.

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Ji-Zhao Lei, Chang-Hong Liang, and Yu Zhang, "Study on Shielding Effectiveness of Metallic Cavities with Apertures by Combining Parallel FDTD Method with Windowing Technique," Progress In Electromagnetics Research, Vol. 74, 85-112, 2007.
doi:10.2528/PIER07041905

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