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عنوان
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Finite difference delay modelling for analysis of shielding effectiveness of perforated conductive enclosure
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نوع پژوهش
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مقاله چاپشده در مجلات علمی
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کلیدواژهها
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shielding effectiveness, numerical method, conductive enclosure
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چکیده
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This paper introduces finite difference delay modelling (FDDM) for computing the shield ing effectiveness (SE) of a conductive enclosure with an aperture against electromagnetic pulses. FDDM offers optimal accuracy and stability for analysing complex structures. The time domain electric field integral equation (TD-EFIE) for the conductive enclosure is derived by imposing boundaryconditionsontheperfectelectrical conductor (PEC) surface in the Laplace domain. Time discretization is based on finite differences, and the Laplace to-Z transform mapping is utilized. Fast Fourier Transform (FFT) is employed to expedite the FDDMsolution process. Both frequency domain shielding effectiveness (FD-SE) and time domain shielding effectiveness (TD-SE) are evaluated using this approach. Finally, to validate the accuracy of the proposed method, results are compared with simulations using CST-MWSsoftware and the frequency domain moment method
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پژوهشگران
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سیاوش رجبی (نفر دوم)، عبدالله میرزابیگی (نفر سوم)
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