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A new transient grounding resistance calculation model is proposed for the finite-difference time-domain (FDTD) method. In FDTD, the perfectly matched layer is backed by the perfect electric conductor (PEC) wall. By stretching the grounding system lifting line to the PEC wall, the grounding system performance is simulated. With this model, a 2-D cylindrical coordinate domain FDTD simulation was carried...
The shielding effectiveness (SE) test is usually implemented in the bounded-wave simulator. However, numerical simulating the SE of a shielding enclosure is mostly modeled with plane wave incidence. In this paper we present the parallel FDTD method to analyze the SE of a shielding enclosure in bounded-wave simulator. An improved formalism for thin slot is adopted. The result shows that the result...
Aperture coupling is the primary way that electromagnetic interference energy into the metal chamber, which would damage the electronic equipment. Articles use FEKO electromagnetic simulation software to analysis the aperture coupling electromagnetic field inside the metal chamber with equal-area different shape (square, circular, rectangular) and the different number apertures. Analysis results showed...
This paper introduces the structure of gigahertz TEM cell (GTEM cell). And the Finite-Difference Time-Domain (FDTD) method is used to model electromagnetic field of effective work space of GTEM cell accurately. The effect of meauring system put at the effective work space is also analyzed. This work will offer theory direction of electromagnetic field distribution of effective work space of GTEM cell.
The radiative device made of metal sheet is the key part of an EMP simulator with absorbing stuff. In order to extend the effective work space, the radiative device is designed optimised. And the finite-difference time-domain (FDTD) method is used to model electromagnetic field of effective work space of the EMP simulator accurately. From the numerical result, we can see that the optimised radiative...
In this paper, we assume that the bounded-wave simulator is placed on the ground in the experiment. And the finite-difference time-domain (FDTD) method is used to model electromagnetic field at working region. From the numerical result, we can see that the ground has great effect on the electromagnetic wave.
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