混响室内最大e场分布的统计特性

2004 International Symposium on Electromagnetic Compatibility (IEEE Cat. No.04CH37559) Pub Date : 2004-11-01 DOI:10.1109/ISEMC.2004.1349891

K. Harima

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引用次数: 10

摘要

在混响室中，通过移动机械搅拌器来改变边界条件，产生统计上均匀的e场。利用理想混响室内空间电磁场分布的概率密度函数，可以从理论上估计其均匀性。然而，在真实的腔室中，均匀性受到腔室尺寸和搅拌器结构的影响。我们从实验和理论上评价了搅拌器对空间均匀性的影响。当配置有效搅拌器的腔室尺寸比波长大时，即在工作频率以下存在约10/sup 5/以上的共振模式时，空间均匀性与理论值吻合较好。

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Statistical characteristics of maximum E-field distribution in a reverberation chamber

A statistically uniform E-field is created in a reverberation chamber by moving mechanical stirrers to vary boundary conditions. The uniformity of the spatial E-field distribution in an ideal reverberation chamber can be theoretically estimated using the probability density function of its distribution. However, uniformity in a real chamber is affected by the dimensions of the chamber and the structure of the stirrers. We experimentally and theoretically evaluated the effect of stirrers on spatial uniformity. When the dimensions of a chamber equipped with effective stirrers are large compared to the wavelength, that is, when resonant modes above approximately 10/sup 5/ exist below the operating frequency, the spatial uniformity is in good agreement with theoretical values.

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2004 International Symposium on Electromagnetic Compatibility (IEEE Cat. No.04CH37559)

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