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Shielding effectiveness of metallic enclosures with curved metallic objects on vehicle platform illuminated by an incident EMP is studied using hybrid FDTD method combined with a modified conformal technique. Some important factors including polarization direction of the incident wave, the incident angle of the exterior EMP, and different incident waveforms are investigated in detail for their effects...
The sub-cellular thin wire FDTD algorithm is modified and combined into a single FDTD method so that it is able to capture the SE performance of the enclosure with a number of geometrical and physical parameters changed, illuminated by an electromagnetic pulse. Then several methods to mitigate the coupling were introduced and investigated in detail.
Shielding effectiveness (SE) of metallic rectangular enclosures with thin slots and a thin-wire antenna loaded by an impedance, illuminated by multiple electromagnetic pulses (EMPs) simultaneously, is investigated using a hybrid finite-difference time-domain (FDTD) method. In order to enhance the simulation efficiency of the FDTD algorithm, accurate formulas for handling multiple thin slots, a thin-wire...
This paper presents an improved sub-cell model for modeling thin material in metallic enclosures using the finite-difference time-domain (FDTD) method. The enhanced thin material sub-cell algorithm proposed can model thin magnetic material sheets including their losses. Our FDTD results are compared with the shielding effectiveness obtained by transmission line method, with good agreements achieved...
Shielding effectiveness of metallic enclosures with thin slots, illuminated by an obliquely incident EMP, is studied using hybrid FDTD method combined with thin-slots formulas (TSF). The developed code is verified by comparing our numerical result with the measurement, and an excellent agreement is achieved. Parametric studies are performed to show geometrical and physical parameters of the metallic...
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