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Measurement of the transient shielding effectiveness of enclosures using UWB pulses inside an open TEM waveguide

机译:使用开放式TEM波导内的UWB脉冲测量外壳的瞬态屏蔽效能

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摘要

Recently, new definitions of shielding effectiveness (SE) for high-frequency and transient electromagnetic fields were introduced by Klinkenbusch (2005). Numerical results were shown for closed as well as for non closed cylindrical shields. In the present work, a measurement procedure is introduced using ultra wideband (UWB) electromagnetic field pulses. The procedure provides a quick way to determine the transient shielding effectiveness of an enclosure without performing time consuming frequency domain measurements. For demonstration, a cylindrical enclosure made of conductive textile is examined. The field pulses are generated inside an open TEM-waveguide. From the measurement of the transient electric and magnetic fields with and without the shield in place, the electric and magnetic shielding effectiveness of the shielding material as well as the transient shielding effectiveness of the enclosure are derived.
机译:最近,Klinkenbusch(2005)引入了对高频和瞬变电磁场的屏蔽效果(SE)的新定义。显示了封闭式和非封闭式圆柱屏蔽的数值结果。在当前工作中,使用超宽带(UWB)电磁场脉冲引入了一种测量过程。该过程提供了一种快速的方法来确定机柜的瞬态屏蔽效果,而无需执行耗时的频域测量。为了演示,检查了由导电织物制成的圆柱形外壳。场脉冲在开放的TEM波导内部产生。从在有和没有屏蔽的情况下对瞬态电场和磁场的测量,可以得出屏蔽材料的电磁屏蔽效果以及外壳的瞬态屏蔽效果。

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  • 作者

    Herlemann H.; Koch M.;

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  • 年度 2007
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  • 原文格式 PDF
  • 正文语种 eng
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